Catalog relay bảo vệ Circutor dòng RGE

Protection and control
Smart earth leakage protection
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P1/2-2
Introduction · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5
P.1 - Industrial earth leakage protection
Product selection table· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 13
WG
Earth leakage transformers, WG series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 15
RGE / RGE-R
Electronic earth leakage relay with external transformer of the WG Series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 16
RGU-10 / RGU-10 C
Electronic earth leakage relay with external transformer of the WG Series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 18
CBS-4 / CBS-4 C
Earth leakage monitoring and signaling unit of the external transformer of the WG Series· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 20
CBS-8
Earth leakage monitoring and signaling unit of the external transformer of the WG / WGP Series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 22
WGP
Earth leakage Transformers of the WGP Series (only for CBS-8) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 24
WN
Earth leakage transformers, WN series· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 25
RN / RN-R
Electronic earth leakage relay with external transformer of the WN Series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 26
RN-10
Electronic earth leakage relay with external transformer of the WN Series · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 28
WRU
Earth leakage relay with built-in transformer (type A)· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 30
WGBU
Transformer with built-in earth leakage relay · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 32
WRN-22
Earth leakage relay with built-in transformer· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 35
Relation between products and accessories· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 37
P2- Self-reclosing overload and earth leakage protection
Earth leakage protection and self-reclosing
REC2
Self-reclosing earth leakage relay· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · P2-47

Earth leakage protection
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The "protection" and "continuity" of the
electrical power supply are two terms
that must not be separated if we wish to
guarantee the safety of users and elec-
trical installations.
The recent addition of receivers or loads
that generate distortion in the electricity
grid (speed variators, electronic start-
up units, computer equipment, lighting
with electronic ballasts, etc.) has made
necessary the use of protection systems
that can distinguish between defects in
the installation and the electrical altera-
tions that cause the unwanted tripping
of protection systems.
The new range of earth leakage pro-
tection products offers state-of-the-art
performance to guarantee the continuity
and safety requirements:
}} Monitoring in true root mean square.
}} High frequency filtering
}} Inverse curve delay (instantaneous
and selective)
}} Adjustment of the nominal sensitivity
trigger
}} Display of the fault current (monitor-
ing of protection systems)
Monitoring the status of protections al-
lows us to do the following in the electri-
cal installation:
}} Analyse the insulation conditions.
}} Preventive and corrective mainte-
nance.
}} Reduce production downtime. De-
crease maintenance costs. Quick loca-
tion of faults.
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Protection
Immunised protection
Monitoring
Monitoring
Remote control
Reset
4 earth leakage protection methods
SAFETY OF
PERSONS AND
MATERIALS
SAFETY OF
PERSONS AND
MATERIALS
CONTINUITY
ELECTRICAL
POWER SUPPLY

.1/2 Earth leakage protection
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When the earth leakage protection sys-
tem detects a fault current, it acts on the
electrical installation being protected,
opening the circuit while interrupting
the supply of electrical energy, thus pre-
venting the danger of electrocution for
persons when the fault current reaches
dangerous values, either as a result of
direct or indirect contact, including any
potential damage caused to goods and
materials.
An earth leakage protection system is
composed of three clearly different parts:
}} Detecting element or sensor
}} Relay
}} Circuit breaker
Detecting element or sensor: Cur-
rent transformer that detects the earth
leakage current of active conductors in
an installation, sending a proportional
signal to the relay. It can have a toroidal
or rectangular geometry, depending on
the arrangement of plates or the wiring
of the installation location.
The correct operation of the sensor re-
quires the path of capacitors to be as
perfectly aligned as possible.
Relay: Smart protection element. It
measures and treats the signal received
Definition
Nowadays, "sympathy" or unwanted
triggers are quite common in modern in-
stallations. In these cases, one or more
earth leakage switches are triggered si-
multaneously, protecting an installation
from the leakage currents sent to earth
as a result of capacitive effects caused
by the installation.
Said capacitive effects can explained by
two reasons:
}} The installation's cables cause earth-
ing condensation effects. The longer the
cable, the greater the capacity effect
}} The capacitors of EMI filters in the
equipment with electronic power regula-
tion
Immunised earth leakage protection
bythesensorandeithersendsthetrigger
signal to the associated circuit breaker
or not, depending on the sensitivity and
delay time values programmed.
Circuit breaker: This element acts as
the current interrupting element. It can
be a circuit breaker (with trigger coil), a
contact, etc.
These three elements can be found in
CIRCUTOR's products with different
configurations:
}} All elements separately
}} Relay with internal transformer
The different loads or consumption of an
installation can be classified in two main
groups, depending on the type of insula-
tion from earth:
Loads with no earthed capacitors
The insulation existing between the unit
and the earthing elements can be rep-
resented with a pure Ohmic resistance.
If the resistance is not high enough, no
current will pass through the earthing
elements. The leakage current is zero
(current passing to earth under normal
conditions).
In case there is an insulation fault, cur-
rent will pass through earthing elements,
the so-called fault earthed current, Id
.

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In this case, we must simply adjust the
sensitivity and delay time to guarantee
the adequate protection.
Loads with earthed capacitors
The current passes through the earthing
elements as a result of the unit's opera-
tions through its capacitors. In addition,
the length of cables in an electrical in-
stallation can lead to capacitive earthing
faults, which would lead to this situation.
The current can be injected with two
methods:
Permanent Leakages.
The unit injects current in the earthing
elements permanently. This type of be-
haviour is closely tied to the use of EMI
filters, which are installed in most ma-
chines or loads with electronic power
regulation, in order to comply with the
electromagnetic compatibility directives.
This type of filter prevents the high fre-
quency distortion generated by the re-
ceiver from being returned to the grid.
However, it is transferred through the
earthing capacitors. It also transfers in-
directly the fundamental frequency and
its corresponding harmonics, so that the
leakage is usually a set of overlapping
high and low frequency signals. There-
fore, it increases the risk of an earth
leakage trip with no real earth leakage
current.
Transient Leakages.
It has the same capacitive effects of ca-
bles and the filters mentioned above for
transient overvoltages caused by grid
switching effects, the connection-dis-
connection of circuits or effects that are
simply caused by atmospheric agents.
In case of loads with earthed capaci-
tors, the basic problem for the protec-
tion of the system is to distinguish which
earthed current is part of the unit's op-
eration and which is part of an insulation
defect. Electromechanical earth leak-
age relays do not usually solve these
situations.
The immunised earth leakage protection offered by CIRCUTOR has evolved in relation
to five factors, in order to satisfy the needs of our customers, catering for the current
demand as regards the safety and continuity of the supply of electricity:
}} MEASUREMENT IN TRUE ROOT MEAN SQUARE (TRMS) AND CLASS A
}} IMMUNE TO TRANSIENT LEAKAGES
}} HIGH FREQUENCY FILTERING
}} ADJUSTMENT OF THE TRIGGER OF I∆n
}} INVERSE CURVE

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Measurement in TRMS and Class A
The voltage and current wave shapes
have stopped being complete sine
waves since the loads distributed in the
installations are not linear. The continu-
ous and harmonic components can dis-
tort the wave shapes, whereby it will be
necessary to take more accurate meas-
urements.
The current range of electronic earth
leakage switches measures the root-
mean-square-value (TRMS) of leakage
currents by sampling it.
The wave shapes in installations with
linear resistive loads are pure sine-
waves. However, the figure shows how
the mean value will not work to measure
the root-mean-square-value with ac-
curacy when it stops being a complete
sine-wave.
In accordance with these problems,
the IEC 61008-1 Earth Leakage Switch
Standard determines the types of op-
eration, depending on the type of wave.
Two types are defined, Class AC and
Class A.
CLASS AC
The earth leakage devices used in do-
mestic installations or that protect loads
that do not cause distortions can be of
the AC Type. These devices are marked
with a symbol, in compli-
ance with the IEC 61008-1
Standard.
CLASS A
In the presence of non-linear receivers,
Type A earth leakage protection sys-
tems must be used, which means that
rectified currents can be measured with
a continuous component of up to 6 mA,
including non-distorted currents (AC
type), marked by the cor-
responding IEC 61008-1
Standard.
The IEC 61008-1 Standard defines two
types of ray-type curves to check the
correct operation of an earth leakage
device: an overload and an overvolt-
age wave. The overload wave shows
the effects caused in the measurement
of the earth leakage device and the ov-
ervoltage wave shows the effects in the
power supply.
Immunity against transient leakages
The behaviour of earth leakage pro-
tection units in the case of transient
overloads and overvoltages is vital to
maintain the continuity in the supply of
electricity. Therefore, the immunised
earth leakage protection relays manu-
factured by CIRCUTOR can support
very high peaks.
Voltage: Curve 1.2 / 50 μs: ≈ 4 kV
Current: Curve 8 / 20 µs: ≈ 5 kA

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High-frequency current
Adjustments of I∆n
The IEC 479-1 / UNE 20-572-92 Stand-
ard describes the effects of currents
passing through the human body for
a frequency of 50 Hz. As you can see,
the effect depends on the root-mean-
square-value of the current passing
through the body and the time it takes
to pass through. In accordance with the
effects, we can establish zones 1 (zone
with no perception) and 2 (perception
zone) as safe work zones. Therefore, in
terms of the protection of persons, earth
leakage protection systems must act on
those zones.
When the frequency increases, the
curves are displaced to the right of the
a. Perception threshold
b. "No-drop" threshold
c1 / c2 / c3. Fibrilation threshold
1. No perception
2. Perception
3. Reversible effects. Muscle tetany
4. Potentially irreversible effects
Delaytime
Sensitivity
FrequencyfactorFf
Frequency f
The following graphs show that with an
identical evolution of the fault earthed
current in the same installation, the be-
haviour of the earth leakage switch is
different, even when the sensitivity level
of I∆n
is the same in both cases.
This adjustment of I∆n
allows us to con-
centrate more loads that incorporate
earthed capacitors within the same line
being protected. For example, in a com-
puter installation: Each unit diverts a
current, Ileakage
, of 2 mA through the EMI
filter capacitors included. At a sensitiv-
ity of (I∆n
) 30 mA, you can install 7 com-
puters with the electromechanical earth
leakage switches. However, if you use
CIRCUTOR's electronic switches you
can install a total of 12.
FaultearthedcurrentId
100 % I∆n
50 % I∆n
Time, t
FaultearthedcurrentId
100 % I∆n
85 % I∆n
Time, t
The IEC 61008-1 Standard specifies
that earth leakage switches must be
triggered when the fault earthed current
is between 50% and 100% of the sen-
sitivity value (I∆n
) selected. This means
that the values that exceed 50% can
set off the earth leakage switch trig-
ger. This type of case is common with
electromechanical switches. In the case
of electrical energy installations, these
have evolved in such a way that the ad-
justment of protection can cause great
problems, since it is too low. The elec-
tronic earth leakage protection systems
offered by CIRCUTOR determine the
trigger near 100 % of I∆n
.
Therefore, we have a lower risk of trig-
gers and less interruptions in the instal-
lation's supply than when the fault cur-
rent is lower than I∆n
.
previous graph, which indicates that the
current is less dangerous.See the table
attached, in accordance with IEC 479-2/
UNE 20-572-93, where a fault current
of, for example, 45 mA at 500 Hz has
the same effect as a fault current of 30
mA at 50 Hz. In the case of receivers
with EMI filters, we can consider that
these inject a high-frequency earthed
current (>2 kHz) and a low frequency
current. The use of type A earth leakage
protection systems is specified in these
cases.

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Inverse curve
Monitoring protection elements
Remote control and reset
The IEC 61008-1 Standard allows us to
incorporate a circuit opening delay for
the circuit being protected, which will
depend on the leakage current level.
Therefore, the greater the fault current,
the lower the delay.
Two types of curves are specified, as
shown on the following table of values:
}} Instantaneous
}} Selective
The application of these curves to our
earth leakage systems can be used to
increase the continuity in the installa-
tion's power supply and avoid unwanted
trips.
The leakage current value must be
available at all times in many applica-
tions. This information is quite useful for
the installation's preventive and correc-
tive maintenance tasks, since we can
act before triggers are set off.
For example, if the insulation degree of
a machine is reduced, the earth leakage
current increases, and since we have
the said information, we can implement
the appropriate corrective actions to
avoid the trigger from being set off.
The idea is to integrate the earth leaka-
ge currents in the installation's energy
control system, thus controlling an addi-
tional quantity.
Depending on the type of product, the
information can be presented as fo-
llows:
}} In the earth leakage relay, through
the display.
}} Through the RS-485 communica-
tions system.
}} With an auxiliary measurement unit.
In addition, records and logs of the in-
sulation behaviour of the installation can
be taken.
In the case of earth leakage protection
systems in installations that require a
continuous supply of energy, with no
maintenance staff present, the remote
control and reset (or self-reclosing)
functions are very useful.
Remote control functions can be carried
out through communications systems
(RS-485,Ethernet,etc.),usingthe Power-
Studio Scada software. This function can
control the status of protection systems
and perform a set of actions through a
computer and communications systems.
Type Instantaneous Selective
I∆n
(A) All values > 0,03
Standardisedoperatingtimevalues(s)
I∆n
0,3 0,5
2 . I∆n
0,15 0,2
5 . I∆n
0,04 0,15
500 A 0,04 0,15
Maximum
t
Id
I∆n

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Earth leakage protection systems with self-reclosing
Given the current efficient personal and
material protection requirements and
obligations, and the complexity of some
installations that require the continuous
supply of electrical energy with the use
of overload and earth leakage protection
systems, CIRCUTOR has developed a
wide range of units that make safety and
service continuity compatible.
Self-reclosing systems are an ideal solu-
tion for installations that need a constant
supply of electrical energy, without the
need for the usual maintenance staff:
}} Rural installations
}} Refrigeration chambers
}} Public lighting
}} Mobile telephony repeaters
}} Traffic lights
}} Lighting of tunnels
}} ATMs
}} Cable television
}} Etc.
The type of protection element installed,
those that can be reclosed and under
which reclosing conditions must be known
by all self-reclosing systems.
Self-reclosing systems act in accord-
ance with the following:
}} Earth leakage current (earth leakage)
}} Earth leakage current (earth leakage) +
overload and short-circuit (circuit breaker).
Elements that form an self-reclosing system
Earth leakage transformer
The earth leakage transformer detects
the earth leakage. It can be built-in on a
relay or as an external element.
Self-reclosing relay
Self-reclosing relays add a series of
performance features (self-reclosing,
thermal or overload protection) to the
proven reliability and security of non-re-
closing earth leakage protection relays.
It performs the following functions:
}} Detection of anomalies (earth leak-
age or overload) through the signal gen-
erated by the transducer.
}} They analyse the anomaly to see if it
must generate an alarm, depending on
the parameters programmed.
}} They also act on power elements,
which perform the grid load connection-
disconnection tasks.
Circuit breaker
The circuit breaker always interrupts the
flow of power, which supports the power
in the line protected and is an external
element of the relay.
The circuit breakers that can be asso-
ciated to self-reclosing relays are as
follows:
}} Motorized circuit breaker (MT)
}} Contact circuit breaker with remote
control (MCB), with a dual circuit break-
er and contact function (the function of
the contact is bistable).
Features of the circuit breaker:
}} Nominal current (in contacts)
}} Nominal current and thermal protec-
tion curve (in circuit breakers)
}} Features of the control inputs of the
operational element
}} Circuit-breaking power
}} Auxiliary NO or NC signalling of the
circuit breaker's status
TRANSFORMER
RELAY
Treatment of the signal,
measurement and trigger
CIRCUIT BREAKER
monitored

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Parameters related to self-reclosing relays
Relay status indicator
The indications are associated to the
type of protection, distinguishing be-
tween instantaneous triggers and inter-
lockings. The indications are sent by the
relay (LED) and, optionally, by auxiliary
contacts.
Another type of visualisation, depending
on the relay, is the instantaneous trigger
value and the number of total reclosures.
Nominal trigger point of protec-
tions
Standard values:
}} Earth leakage protection 30 mA - 3 A
}} Overload protection 6 A - 63 A
Timer (delay)
Minimum time that the earth leakage
must last before setting off a relay trig-
ger.
Standard values: 20 ms - 1s.
Relay power supply and tolerance
Self-reclosing relays need a permanent
form of auxiliary power supply in order to
manage the self-reclosing operations.
}} Standardised value: 230 Vac ± 15 %
}} Optional: 48, 110 or 400 Vac
Reclosing meter reset time.
To avoid the accumulation of triggers that
do not correspond to the same anomaly,
a reset time is defined for the reclos-
ing meters, provided that the maximum
number of reclosures is not exceeded.
Example: The WRU-25 RA relay has a
maximum number of reclosures available
before being pushed to its interlocking.
In installations with a transient earth leak-
age fault that lasts 50 seconds, the relay
is triggered 4 times and reclosed 3 times
(8 s + 16 s + 30 s). During the timing of
the third self-reclosing, the fault disap-
pears, so that the relay will remain in the
ON position. This is when the reset timer
of the reclosing meter will be set off.
The RESET option starts the relay, reset-
ting the reclosing meters.
Local (with the keys) and remote
test and reset
Self-reclosing earth leakage relays offer
the same performance as non-reclosing
relays. It enables the verification of the
correct operation of the relay with local
TEST and RESET functions, using the
keys on the relay, including remote func-
tions with specific inputs.
The RESET option resets the relay and
the reclosing meters.
Number of reclosures, distin-
guished by type and number of
self-reclosing
Each relay enables a maximum number
of reclosures before setting off the in-
terlocking. The meter will be reset au-
tomatically if the maximum number of
reclosures is not exceeded within a pre-
established period of time (reset time of
reclosing meters).
This number will be different, in accord-
ance with the type of self-reclosing.
Output relay
}} Number of relays
}} With interlocking
}} NO or NC Output contact
Time between reclosures
Time the relay takes between the trigger
and the self-reclosing. It can be linear or
exponential.

.1Industrial earth leakage protection
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Product selection table
Equipment External toroidal Internal toroidal No. of outputs Indications Communications In
(A) Page
RG1M
16
RGE/RGE-R
Type WG
- 1 LEDs -
Depending
on the type
0.03 ... 5 A
18
RGU-10/
Type WG
- 1 + pre-alarm Display
Only for type
RGU-10 C
0.03 ... 3 A
0.3 ... 30 A 20
CBS-4/
Type WG
- 4 + pre-alarm Display
Only for type
CBS-4 C
0.03 ... 3 A
0.3 ... 30 A 22
CBS-8
Type WG-WGP
- 8 + pre-alarm Display Yes
0.03 ... 6.3 A
0.3 ... 63 A 24
RN1M
28
RN/RN-R
Type WN
- 1 LEDs -
Depending on the
type 0.03 ... 5 A 30
RN-10
Type WN
- 1 + pre-alarm LEDs - 0.03 ... 3 A 32
WRU-10
-
Depending
on the type
25 - 35 mm
1 LEDs - 0.03 ... 3 A 34
WGBU/
- 35 ... 210 mm 1 LEDs - 0.03 ... 3 A 38
WRN-22
- 22 mm 1 LEDs -
0.01 A
0.03 A0.3 A 41

.1 Industrial earth leakage protection
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Useful diameter
(mm)
Weight
(g) In
(A) Type Code
20 Ø 76 acc. relay WGS-20 P10131
30 Ø 95 acc. relay WGS-30 P10132
35 Ø 181 acc. relay WG-35 P10111
70 Ø 274 acc. relay WG-70 P10112
105 Ø 545 acc. relay WG-105 P10113
140 Ø 1 222 acc. relay WG-140 P10114
210 Ø 2 040 acc. relay WG-210 P10115
70 x 175 2 400 acc. relay WG-70x175 P10116
115 x 305 5 450 acc. relay WG-115x305 P10117
150 x 350 7 400 acc. relay WG-150x350 P10118
200 x 500 13 400 acc. relay WG-200x500 P10119
References
WG Series Earth Leakage transformers
WG
WGS Dimensions
WG Dimensions
Type A B C D E
WG-35 100 79 26 48,5 35
WG-70 130 110 32 66 70
WG-105 170 146 38 94 105
WG-140 220 196 48,5 123 140
WG-210 299 284 69 161 210
Type A B C D E F G H I
WG-70X175 70 175 225 85 22 46 261 176 7,5
WG-115X305 115 305 360 116 25 55 402 240 8
WG-150X350 150 350 415 140 28 55 460 285 8
WG-200X500 200 500 - 140 - 62 585 285 -
WGS-20
WGS-30
WG Series
Description
The earth leakage transformers of the WG Series have been designed
to work with the relays of the WG Series. The sensitivity (trigger current)
of the transformer-relay set is established by the associated relay.

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Electronic earth leakage relay with external
transformer of the WG Series
RG1M
Protección
Class A superimmunized
Measurement True root mean square (TRMS)
Sensitivity 30 or 300 mA
Delay 20 ms
Earth leakage transformer External WG Series
Test and Reset With built-in buttons, T & R
Remote Control External Test Option
Associated circuit breaker
Contactor or automatic circuit breaker using a coil
trigger
LED indicator
• Power supply voltage
• Leakage trigger
• Disconnection of external transformer
Circuit breaker control
Through a NO/NC switched relay, depending
on the connection with the circuit breaker
Features
Auxiliary power supply 230 Vac (± 20 %) 50 / 60 Hz
Output contacts 250 Vac, 6 A
Operating temperature -10 ... +65 ºC
Construction features
Fixing DIN Rail 46277 (EN 50022)
Dimensions 1 module
Weight 85 g
Degree of protection IP 20 terminals
Standards
IEC 60947-2, IEC 60755, IEC 62020, IEC 61008
Application
The RG1M relays combined with the WG
transformer provides complete differential
protection, both on single-phase and three-
phase lines.
FeaturesDescription
WG series electronic differential protection
relay for connection to external WG/WGS se-
ries toroidal transformers
}} These are highly reliable electronic relays
with the option of a fixed or adjustable sensi-
tivity and delay
}} Measurement using true root mean squa-
re (TRMS) value
}} DIN 46277 (En50022) Rail mounting
}} Reduced one module size.
}} LED status indication.
yy Power ON LED.
yy Leakage led ON. Tripped relay.
yy Power LED flashing and leakage LED
ON. Detection of a transformer continuity
fault
WG Series

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Size Attachment In
(A) Delay Type Code
1 modules DIN rail 0.03 0.02 s RG1M-0.03 P12204
1 modules DIN rail 0.3 0.02 s RG1M-0.3 P12214
‫‏‬References
Dimensions
Connections
RG1M
WG Series
66 mm
72 mm 17.5 mm
45mm
64mm
90mm
TypeWG
1S11S2
7 8
1 2
3 4
5 6
RG1M
230V;5A
50/60 Hz
230 V±20%
Test / Reset
NL1 L2 L3
TypeWG
1S11S2
7 8
1 2
3 4
5 6
RG1M
230V;5A
50/60 Hz
230 V±20%
Test / Reset
NL1 L2 L3
- Rearme manual.
Disparo por BOBINA DE MÍNIMA
CARGA
Disparo por BOBINA DE EMISIÓN
CARGA
- Rearme manual.

P
P1-18
RGE/ RGE-R
Protection
Sensitivity
0.03 A / 0.3 A / 0.5 A / 0.03 ... 3
A (R1) / 0.03 ... 5 A (R)
Delay 0.02 / 0.02 ... 1 s (R1) / 0.02 ... 5 s (R)
Earth leakage transformer External, TRANSFORMERS WG
Associated circuit breaker Contact or Circuit breaker + trigger coil
LED indicator
• Trip due to leakageDisconnection of the
external transformerPre-alarm (R-R1)
Display View -
Remote signaling -
Through an NO/NC switched relay, depending
Features
Auxiliary power supply
230 Vac (± 20 %) 50 / 60 Hz
(other values on demand)
Dimensions 2 modules
Weight 163 g
Degree of protection IP 20 Terminals, IP 41 back panel
Standards
IEC 664, VDE 0110, IEC 801, UL 94, IEC 348, IEC 571-1, EN 61000-6-3, 61000-6-1, 61010-1
Application
The relays of the RGE series and the trans-
former of the WG series enable a full earth
leakage protection for both single and three-
phase lines. They guarantee maximum se-
curity and continuity of the electrical service,
avoiding unwanted tripping.
FeaturesDescription
Electronic earth leakage protection relay,
used to connect to the earth leakage trans-
formers WG Series
}} These electronic relays offer a high reli-
ability, with the option of a fixed or adjustable
sensitivity and delay
}} Type A relay with high frequency current
filtering and high immunity. Monitoring of the
true root mean square (TRMS)
}} Assembly on DIN rail 46277
}} Reduced size: 2 modules
}} LED indicators:
yy Permanently lit leak indicator
yy LED: Trigger relay
yy Flashing power LED and lit leak LED:
detection of faults in the transformer's con-
tinuity
yy Flashing leak LED indicator (only RGE-R
and RGE-R1): Leak with a value under the
value selected
yy 1 flash every 2 s: 25 ... 50 % of the leak-
age current
yy 1 flash every 1 s: 50 ... 75 %
yy 2 flashes every 1 s: 75 ... <100 %
yy Permanently: 100 %
WG Series

P
P1-19
Size Fixing In
(A) Delay Type Code
2 modules DIN rail 0,03 0.02 s RGE-0.03 P12201
2 modules DIN rail 0,3 0.02 s RGE-0.3 P12211
2 modules DIN rail 0,03 ... 3 0.02 ... 1 s RGE-R1 P12231
2 modules DIN rail 0,03 ... 5 0.02 ... 5 s RGE-R P12232
References
Dimensions
Connections
Shunt coil tripping Undervoltage coil tripping
RGE / RGE-R
WG Series
EXTERNAL RESET
EXTERNAL RESET
SHUNT
COIL
LOAD LOAD
UNDERVOLTAGE
COIL
EXTERNAL RESET
EXTERNAL RESET
SHUNT
COIL
LOAD LOAD
UNDERVOLTAGE
COIL

P
P1-20
RGU-10/ RGU-10 C
Protection
Sensitivity
0.03 ... 3 A
0.03 ... 30 A
(PROGRAMMING)
Delay
Time defined: 0,02 ... 10 s
Inverse curve: Instantaneous or selective
Earth leakage transformer External, TRANSFORMERS WG
LED indicator
• Trip due to leakage
• Disconnection of the external transformer
• Pre-alarm
Display View
• Current trip (red display when triggered)
• Programming parameters
• Instantaneous leakage current
Remote signaling
• Pre-alarm
• Display of parameters with RS-485
communications (RGU-10 C)
Features
230 Vac (± 20 %) 50 / 60 Hz
Weight 236 g
Standards
IEC 61008-1, IEC 755, IEC 255-5
Application
The RGU-10 relays associated to the trans-
formers of the WG series allow an smart
earth leakage protection. Their design fea-
tures guarantee maximum security and con-
tinuity of the electrical service, avoiding un-
wanted tripping.
Showing the value of the leak instantane-
ously on the display with the pre-alarm in-
dications provides the information about the
state of lines being protected, thus allowing
the implementation of an adequate preven-
tive maintenance approach.
In addition, version RGU-10 C with RS-485
communications is used with the Power Stu-
dio software, which allows the centralised
supervision of the system in real time, with a
record log that can be analysed later on.
FeaturesDescription
Electronic earth leakage protection relay,
used to connect to the earth leakage trans-
formers WG Series
}} Superimmunized Type A relay with high
frequency current filtering and high immunity
}} Monitoring of the true root mean square
(TRMS)
}} Display of data on the screenTwo inde-
pendent programmable outputs (main and
pre-alarm)
}} External input for remote control functions
( 230 Vac).
WG Series

P
P1-21
Size Communications In
(A) Delay Type Code
3 modules -
0.03 ... 3 A
0.03 ... 30 A
(PROGRAMMING)
0.02...10 s, INS, SEL RGU-10 P11941
3 modules RS-485
0.03 ... 3 A
0.03 ... 30 A
(PROGRAMMING)
0.02...10 s, INS, SEL RGU-10 C P11944
References
Dimensions
Connections
RGU-10 / RGU-10 C
WG Series
Shunt coil Undervoltage coil

P
P1-22
Earth leakage monitoring and signaling unit
of the external transformer of the WG Series
CBS-4/ CBS-4 C
Protection
No. of protections 4
Sensitivity 0.03 A ... 30 A
Delay
Inverse curve: instantaneous or selective
Earth leakage transformer External, TRANSFORMERS WG/WGP
Self-reclosing
No. of reclosures 0 Programming option ... 10
Time between reclosures 0 Programming option ... 900 s
Partial counter reset time Double the reclosing time
LED indicator
• Leakage trip
• Pre-alarm
• Interlocked earth leakage self-reclosing
Display View
• Instantaneous leak level indicator in each channel
• Parameter programming
• State of the self-reclosing- Disconnected external
trans. indicator- Automatic self-reclosing enabled
Features
Auxiliary power supply 230 Vac (± 20 %) 50 ... 60 Hz
Weight 236 g
Standards
Application
FeaturesDescription
}} Unit equivalent to 4 earth leakage protec-
tion networks. 4 independent programmable
relays available
}} Four inputs to connect the external toroidal
transformers of the WG
frequency current filtering and high immunity.
Monitoring in true root mean square (TRMS)
}} Reduced size, with 3 modules
}} 5 independent programmable outputs
(4 earth leakage trip relays and 1 pre-alarm
trip).
The CBS-4 earth leakage unit associated to
the transformers of the WG Series allows an
smart earth leakage protection. Its design
features guarantee maximum security and
continuity of the electrical service, avoiding
unwanted tripping.
In addition, version CBS-4 C with RS-485
communications is used with the PowerStu-
dio software, which allows the centralised
supervision of the system in real time, with a
record log that can be analysed later on.
WG Series

P
P1-23
Size Communications No. of Relays In
(A) Type Code
3 modules - 4 0.03 ... 30 s CBS-4 P12711
3 modules RS-485 4 0.03 ... 30 s CBS-4 C P12712
References
Dimensions
Connections
CBS-4 / CBS-4 C
WG Series

P
P1-24
of the external transformer of the WG / WGP
Series
CBS-8
Protection
No. of protections 8
Sensitivity
0.03 A ... 6.3 A external transformers WG/WGS
0.03 A ... 63 A external transformers WGP/WGSP
Delay
Inverse curve: instantaneous or selective
Earth leakage transformer External, TRANSFORMERS WG/WGP
Self-reclosing
No. of reclosures 0 Programming option ... 10
Time between reclosures 0 Programming option ... 900 s
Partial counter reset time Double the reclosing time
LED indicator
• Leakage trip
• Pre-alarm
• Interlocked earth leakage reclosing
• Automatic self-reclosing enabled
Display View
• Instantaneous leak level indicator in each channel
• Parameter programming
• Self-reclosing status
Features
Auxiliary power supply 230 Vac (± 20 %) 50 ... 60 Hz
Weight 609 g
Standards
Application
FeaturesDescription
}} Unit equivalent to 8 earth leakage protec-
tion networks. 8 independent programmable
relays available
}} 8 inputs to connect the external toroidal
transformers of the WG /WGP
}} Size adapted for 8 modules
}} 9 independent programmable outputs
(8 earth leakage trip relays and 1 pre-alarm
trip).
The CBS-8 earth leakage station associated
to the transformers of the WG / WGP Series
allows an smart earth leakage protection. Its
design features guarantee maximum security
and continuity of the electrical service, avoid-
ing unwanted tripping.
In addition, RS-485 communications are
used with the Power Studio software, which
allows the centralised supervision of the sys-
tem in real time, with a record log that can be
analysed later on.
WG Series

P
P1-25
References
Dimensions
Connections
CBS-8
WG Series
CBS-8
45
110
140 70
Size Communications No. of Relays In
(A) Type Code
8 modules RS-485 8 0.03 ... 63 A CBS-8 (*)
P12811
(*) In the case of the 0.3 ... 63 A scale, use earth leakage transformers of the WGP / WGSP

P
P1-26
References
Earth leakage Transformers of the WGP
Series (only for CBS-8)
WGP
WGSP Dimensions
WGP Dimensions
Type A B C D E
WGP-35 100 79 26 48,5 35
WGP-70 130 110 32 66 70
WGP-105 170 146 38 94 105
WGP-140 220 196 48,5 123 140
WGP-210 299 284 69 161 210
WGP-70X175 70 175 225 85 22 46 261 176 7,5
WGP-115X305 115 305 360 116 25 55 402 240 8
WGP-150X350 150 350 415 140 28 55 460 285 8
WGSP-20
WGSP-30
Useful diameter
(mm) Weight (g) In
(A) Type Code
20 Ø 76 0,3 ... 63 WGSP-20 P10141
30 Ø 95 0,3 ... 63 WGSP-30 P10142
35 Ø 181 0,3 ... 63 WGP-35 P10121
70 Ø 274 0,3 ... 63 WGP-70 P10122
105 Ø 545 0,3 ... 63 WGP-105 P10123
140 Ø 1 222 0,3 ... 63 WGP-140 P10124
210 Ø 2 040 0,3 ... 63 WGP-210 P10125
70 x 175 2 400 0,3 ... 63 WGP-70x175 P10126
115 x 305 5 450 0,3 ... 63 WGP-115x305 P10127
150 x 350 7 400 0,3 ... 63 WGP-150x350 P10128
WG Series
Description
The earth leakage transformers of the WGP Series have been de-
signed to work only with the CBS-8 relay unit and a sensitivity of 0.3 ...
63 A. These transformers have a 1/5000 ratio.

P
P1-27
Useful
diameter
(mm)
Weight
(g) In
(A) Type Code
20 Ø 82 acc. relay WNS-20 P10221
30 Ø 100 acc. relay WNS-30 P10222
35 Ø 148 acc. relay WN-35 P10211
70 Ø 281 acc. relay WN-70 P10212
105 Ø 433 acc. relay WN-105 P10213
140 Ø 574 acc. relay WN-140 P10214
210 Ø 1 201 acc. relay WN-210 P10215
‫‏‬References
WN Series Earth leakage transformers
WN
WNS DimensionsWN Dimensions
Type A B C D E
WN-35 100 79 26 48,5 35
WN-70 130 110 32 66 70
WN-105 170 146 38 94 105
WN-140 220 196 48,5 123 140
WN-210 299 284 69 161 210
WNS-20
WNS-30
WN Series
Description
The earth leakage transformers of the WN Series have been designed
to work with the relays of the WN Series.
The sensitivity (trigger current) of the transformer-relay set is estab-
lished by the associated relay.

P
P1-28
transformer of the WN Series
RN1M
Application
The RN1M relays combined with the WN trans-
former provides complete differential protection,
both on single-phase and three-phase lines.
FeaturesDescription
WN series electronic differential protection
relay for connection to external WN/WNS se-
ries toroidal transformers
}} These are highly reliable electronic relays
with the option of a fixed or adjustable sensi-
tivity and delay
}} Measurement using true root mean squa-
re (TRMS) value
}} DIN 46277 (En50022) Rail mounting
}} Reduced one module size.
}} LED status indication.
yy Power ON LED.
yy Leakage led ON. Tripped relay.
yy Power LED flashing and leakage LED
ON. Detection of a transformer continuity
fault
Protection
Sensitivity 30 or 300 mA
Delay 20 ms
Earth leakage transformer External WN Series
Associated circuit breaker
Contactor or automatic circuit breaker using a coil
trigger
LED indicator
• Leakage trigger
• Disconnection of external transformer
Through a NO/NC switched relay, depending
Features
Auxiliary power supply 230 V c.a. (± 20 %) 50 / 60 Hz
Output contacts 250 V c.a., 6 A
Operating temperature -10 ... +65 C
Dimensions 1 module
Weight 85 g
Degree of protection IP 20 terminals
Standards
IEC 60947-2, IEC 60755, IEC 62020, IEC 61008
WN Series

P.1/2
P1-29
Size Attachment In
(A) Delay Type Code
1 modules DIN rail 0,03 0,02 s RN1M-0,03 P12104
1 modules DIN rail 0,3 0,02 s RN1M-0,3 P12114
‫‏‬References
Dimensions
Connections
Bobina de emisión
Bobina mínima
RN1M
WN Series
66 mm
72 mm 17.5 mm
45mm
64mm
90mm
TypeWN
S1S2
7 8
1 2
3 4
5 6
RN1M
230V,5A
50/60Hz
230V±20%
Test / Reset
NL1 L2 L3
TypeWN
S1S2
7 8
1 2
3 4
5 6
RN1M
230V,5A
50/60Hz
230V±20%
Test / Reset
NL1 L2 L3
Disparo por BOBINA DE MÕNIMA
- Rearme manual.
CARGA
- Rearme manual.
Disparo por BOBINA DE EMISI”N
CARGA

P
P1-30
RN/ RN-R
Application
The relays of the RN series and the trans-
former of the WN series enable a full earth
leakage protection for both single and three-
phase lines.
FeaturesDescription
}} Electronic earth leakage protection relay,
used to connect the transformers of the WN
/ WNS Series
}} These electronic relays offer a high relia-
bility, with the option of a fixed or adjustable
sensitivity and delay
}} Monitoring of the true root mean square
(TRMS)
}} Assembly on DIN rail 46277 (EN 50022)
}} LED status indicator:
yy Permanently lit leak LED: Tripped relay.
yy Flashing “Power” LED and lit leak LED:
Detection of a continuity fault in the trans-
former.
yy Flashing leak indicator LED (only RN-R
and RN-R1): Leak with a value that is lower
than the value selected.
Protection
Class A immunised
Sensitivity
0.03 A / 0.3 A / 0.5 A / 0.03 ... 3 A (R1) /
0.03 ... 5 A (R)
Delay 0.02 / 0.02 ... 1 s (R1) / 0.02 ... 5 s (R)
Earth leakage transformer External, TRANSFORMERS WN
LED indicator
• Pre-alarm (R-R1)
Features
Weight 163 g
Standards
IEC 61008-1, IEC 755, IEC 255-5
WN Series

P
P1-31
Size Indicator In
(A) Delay Type Code
2 modules LED 0,03 0.02 s RN-0.03 P12101
2 modules LED 0,3 0.02 s RN-0.3 P12111
2 modules LED 0,03 ... 3 0.02 ... 1 s RN-R1 P12131
2 modules LED 0,03 ... 5 0.02 ... 5 s RN-R P12132
References
Dimensions
Connections
RN / RN-R
WN Series
EXTERNAL RESET
EXTERNAL RESET
SHUNT
COIL
LOAD LOAD
UNDERVOLTAGE
COIL
EXTERNAL RESET
EXTERNAL RESET
SHUNT
COIL
LOAD LOAD
UNDERVOLTAGE
COIL

P
P1-32
RN-10
Protection
Sensitivity
0.03 ... 3 A
(PROGRAMMING)
Delay
Inverse curve: Instantaneous or selective
Earth leakage transformer External, TRANSFORMERS WN
LED indicator
• Pre-alarm
Display View
• Programming parameters
• Instantaneous leakage current
Remote signaling
• Pre-alarm
• Display of parameters with RS-485 communications
Features
230 Vac (± 20 %) 50 / 60 Hz
Weight 236 g
Standards
Application
The RN-10 relays associated to the trans-
formers of the WN series allow an smart
earth leakage protection. Their design fea-
tures guarantee maximum security and con-
tinuity of the electrical service, avoiding un-
wanted tripping.
The instantaneous leakage value is shown
on the display with the pre-alarm indicators,
providing all information required about the
status of lines being protected, as required
for the preventive maintenance operations.
FeaturesDescription
Electronic earth leakage protection relay s,
used to connect the transformers of the WN
/ WNS Series
}} Visualization of data on the display
}} Sensitivity can be programmed between
30 mA and 3 A
}} Adjustable delay: instantaneous, selective
or timed, up to 1 s
}} Two independent programmable outputs
(main and pre-alarm relay)
}} External input for remote control functions
(230 Vac)
}} Automatic verification of the connection
and status of the external transformer with an
inductive test
WN Series

P
P1-33
References
Dimensions
Connections
RN-10
Size Indicator In
(A) Delay Type Code
3 modules LED 0,03 ... 3 0.02 ... 1 s RN-10 P12140
WN Series

P
P1-34
Relé diferencial con transformador
incorporado con display (tipo A)
WRU-10
Protección
Clase A superinmunizada
Medida Verdadero valor eficaz, TRMS
Sensibilidad PROGRAMABLE 0,03 ... 3 A, ampliable hasta 30 A por SETUP
Retardo PROGRAMABLE
Tiempo definido: 0,02 ...1 s, ampliable
hasta 10s por SETUP. Curva inversa:
INStantánea / SELectiva. (IEC 60947-2)
Test y Reset Mediante pulsadores T y R
Control Remoto
Posibilidad de TEST externo, disparo por entrada libre
de tensión.
Elemento de corte asociado Contactor o interruptor automático con bobina de disparo
Indicación por LED/DISPLAY
- Tensión de alimentación
- Disparo por fuga
- Prealarma
- Parámetros de protección
- Lectura corriente de fuga/
disparo.
- Estados de TEST y disparo
externo.
Control de elemento de corte
Relé de contacto conmutado NA/NC según elemento
de corte
Características eléctricas
Alimentación auxiliar 230 V c.a. (± 30 %) 50 / 60 Hz
Contactos salida disparo/prealarma 250 V c.a., 5 A / 230 V c.a., 250 mA
Temperatura de uso -20 ...+70 ºC
Características mecánicas
Fijación Carril DIN 46722 (EN 50022)
Dimensiones 3 módulos
Peso 275 g
Grado de protección IP 20, transcuadro IP 41
Normas
IEC 60947-2, IEC 60755, IEC 62020, IEC 61008
Application
FeaturesDescription
Electronic differential protection relay with built-
in 28 mm transformer, constituting one unit.
}} Type A high-insulation, with high-frequency
current filter and high insulation. Monitoring
using true root mean square.
}} Display with LEDs and display:
- differential protection settings.
- protection trigger current.
- protection status messages, etc.
}} Units with three programmable output con-
tact relays, one switched and two simple. The
main relay is for the protection provided by the
contact or trigger relay of the automatic switch
while the two others are for the pre-alarm.
}} It also has a voltage input for external trigge-
ring and re-arming.
}} Assembly on DIN Rail 46277 (EN 50022)
}} Reduced three-module size.
}} Connection by pluggable terminals.
Los relés WRU-10 permiten una protección
difencial inteligente. Por sus características de
diseño aseguran la máxima seguridad t conti-
nuidad en el servicio eléctrico, evitándose dis-
paros intempestivos.
El poder visualizar el valor de fuga instantánea
en el display, conjuntamente con las indicacio-
nes de prealarma, permite tener información
del estado de las líneas que protegen, y reali-
zar un buen mantenimiento preventivo.

P.1/2
P1-35
‫‏‬References
Dimensions
Connections
WRU-10 WRU-10
Differential relay with built-in transformer and
display (type A)
WRU-10
Size Net section (mm) In
(A) Delay Type Code
3 modules 28 ∅ 0.03 ... 3 A extendible
to 30 A
0.02 ... 1 s extendible to 10s Curve
(Inverse): INS/SEL
WRU-25
P2

P
P1-36
Earth leakage relay with built-in transformer
(type A)
WRU
Protection
Sensitivity 0.03 ... 3 A
Delay 0.02 ... 1 s
Earth leakage transformer Internal
Remote Control (inputs) External test
Relay signaling
• Pre-alarm
Remote signaling (outputs)
Leak control signal (proportional alternating
voltage) (only in WRU-25)
Features
Fixing DIN rail
Dimensions 4 modules (WRU-25), 6 modules (WRU-35)
Weight 228 g (WRU-25), 403 g (WRU-35)
Standards
IEC 1008, IEC 255-5, UNE 801-2, UNE 801-3, UNE 801-4, UNE 60730-1
Application
FeaturesDescription
Electronic earth leakage protection relay with
built-in transformer, with a diameter of 25 or
35 mm∅ , depending on the type, creating a
single set.
filtering and high immunity. Monitoring in true
root mean square.
}} The sensitivity can be adjusted to 0.03 ... 3A
}} The delay in the trigger can be adjusted
to 0.02 ... 1 s
}} LED indicator of the leak level (% sensi-
tivity):
yy 1 flash every 2 s: between 25 and 50 %
yy 1 flash every 1 s: between 50 and 75 %
yy 1 flash every 0.5 s: between 75 and 90 %
}} Adjustable to the DIN profile 46277 (EN
50022)
The WRU Series allows a reliable and im-
munised form of earth leakage protection,
saving installation time. Its assembly is very
simple, offering an adequate solution for all
types of single and three-phase installations,
since it offers compact earth leakage protec-
tion, with the optional adjustment of the sen-
sitivity and time.

P
P1-37
References
Dimensions
Connections
WRU-25 WRU-35
(type A)
WRU
Size
Useful diameter
(mm) In
(A) Delay Type Code
4 modules 25 0,03 ... 3 0.02 ... 1 s WRU-25 P14011
6 modules 35 0,03 ... 3 0.02 ... 1 s WRU-35 P14021
The delay is cancelled in all relays with a sensitivity adjustment of 0.03 A.
WRU-25
WRU-35
1
1
2
2

P
P1-38
Transformer with built-in earth leakage relay
WGBU
Earth leakage Protection
Sensitivity 0.03 ... 3 A
Delay 0.02 ... 1 s
Earth leakage transformer Built-in transformers of the WG
LED indicator
• Pre-alarm
Remote Control (inputs) External Test Option
Features
Fixing DIN Panel / Rail
Dimensions Depending on the type
Weight Depending on the type
Standards
IEC 61008-1, IEC 755, IEC 255-5
Application
The WGBU series offers a reliable earth
leakage protection, with simpler cabling and
savings in the assembly time. In addition, in-
stallation is very simple, thanks to its compact
dimensions.
FeaturesDescription
The WGBU Series is a compact earth leak-
age protection system. It is composed of a
toroidal transformer with a built-in earth leak-
age relay.
}} Multi-range electronic relay
yy The sensitivity can be adjusted to 0.03 ... 3A
yy Trigger delay of 0.02 ... 1 ws, adjustable
filtering and high immunity. Monitoring in true
root mean square (TRMS).
}} LED indicators:
yy Grid connection LED
yy Pre-alarm and trigger LED: 1 flash every 2
s, leak between 25 and 50 % of the sensitiv-
ity selected; 1 flash every 1 s, leak between
50 and 75 % of the sensitivity selected; 1
flash every 0.5 s, leak exceeding 75 % of
the sensitivity selected; permanently lit, trig-
ger of the earth leakage protection.

P
P1-39
References
Dimensions
WGBU
Weight (g)
Useful diameter
(mm) In
(A) Delay (s) Type Code
380 35 Ø 0,03 ... 3 0,02 ... 1 WGBU-35 P16011
474 70 Ø 0,03 ... 3 0,02 ... 1 WGBU-70 P16012
744 105 Ø 0,03 ... 3 0,02 ... 1 WGBU-105 P16013
1422 140 Ø 0,03 ... 3 0,02 ... 1 WGBU-140 P16014
2240 210 Ø 0,03 ... 3 0,02 ... 1 WGBU-210 P16015
380 35 Ø 0,03 ... 3 0,02 ... 1 WGBU-90-35 P16021
474 70 Ø 0,03 ... 3 0,02 ... 1 WGBU-90-70 P16022
744 105 Ø 0,03 ... 3 0,02 ... 1 WGBU-90-105 P16023
1422 140 Ø 0,03 ... 3 0,02 ... 1 WGBU-90-140 P16024
2240 210 Ø 0,03 ... 3 0,02 ... 1 WGBU-90-210 P16025
The delay is cancelled in all relays with a sensitivity adjustment of 0.03 A.
WGBU
WGBU-90
Type A1 A2 B C D E
WGBU-35 (A1) / WGBU-90-35 (A2) 166 100 79 26 48,5 35
WGBU-70 (A1) / WGBU-90-70 (A2) 196 130 110 332 66 70
WGBU-105 (A1) / WGBU-90-105 (A2) 236 170 146 38 94 105
WGBU-140 (A1) / WGBU-90-140 (A2) 286 220 196 48,5 123 140
WGBU-210 (A1) / WGBU-90-210 (A2) 365 299 284 69 161 210

P
P1-40
Shunt coil
Undervoltage coil
Connections
WGBU

P
P1-41
WRN-22
Protection
Class A
Sensitivity 0,01 A / 0,03 A / 0,30 A (depending on the type)
Delay 0.02 s
Earth leakage transformer Internal
Test With built-in button, TEST
Associated circuit breaker Circuit breaker + trigger coil
Relay signaling
• Leakage trigger
Remote signaling (outputs) -
Remote Control (inputs) External test
Circuit breaker control Voltage 230 Vac
Features
Output contacts -
Fixing DIN rail
Weight 146 g
Standards
IEC 1008, IEC 255-5, UNE 801-2, UNE 801-3, UNE 801-4, UNE 60730-1
Application
The WRN-22 earth leakage protection is a
very interesting solution for small-scale in-
stallations with reduced space.
FeaturesDescription
The WRN-22 relay is an earth leakage relay
with a built-in earth leakage transformer, with
a diameter Ø 22 mm
}} DIN 46277 Symmetrical profile coupling
(EN 50022)
}} The leakage is detected by means of
sampling the earth leakage intensity and cal-
culating its true root mean square (TRMS)
}} Detection of the presence of voltage with
LEDs
}} TEST button.

P
P1-42
References
Dimensions
Connections
WRN-22
Size
Useful diameter
(mm) In
(A) Delay (s) Type Code
3 modules 22 0,03 0,02 WRN-22-0.03 P14211
3 modules 22 0,3 0,02 WRN-22-0.3 P14212
3 modules 22 0,01 0,02 WRN-22-0.01 P14214

P
P1-43
Relation between products and accessories
Adaptor panel PA-TC/WG TT
Adaptor for 72 x 72 panel Accessory for assembly on DIN rail Core balance shield tube
M5ZZF1 P19921
TT-35 P19911
TT-70 P19912
TT-105 P19913
TT-140 P19914
TT-210 P19915
WG
--

only for WG-35 up to WG-210

WGP
--

only for WGP-35 up to WGP-210

RGU-10
 -- --
CBS

only CBS-4
-- --
WN
--

only for WN-35 up to WN-210

RN-10
 -- --
WGBU
-- -- 

P
P1-44

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