1) The document describes a medium voltage vacuum contactor made by Zhejiang Farady Electric Co., Ltd. for 24kV applications. 2) It is used for connecting and disconnecting normal working current for AC motors in long distance applications ranging from 6-40.5kV. 3) The contactor features a vacuum interrupter for arc extinguishing and is suitable for industries such as coal, power, metallurgy and textiles for applications including 50-60Hz at 24kV and currents from 63A to 630A.

1. Medium Voltage Vacuum Contactor
--FVC8 type
--24kV
Product brochure
2010/4
Zhejiang Farady Electric Co., Ltd.
ISO9001&ISO14001 certificated enterprise

2. ++++General
Vacuum contactor uses vacuum interrupter to extinguish arc to frequently connect and cut off
normal working current. It is usually used for 6-40.5kV system AC motor in long distance
connection and disconnection.
++++Application
FVC series of Medium voltage vacuum AC contactors are widely used in coal, power,
metallurgy and textile. High building and other industry departments. Medium voltage vacuum
AC contactor is suitable for communication: 50-60HZ. rated voltage: 24kV rated current 63
to 630A feed network for long distance connection and Open circuit, and frequent starting
and stopping the use of AC motor. It is especially suitable for assembling with all kinds of
protective devices to form flameproof electromagnetic starter.
++++Product Feature:
• Main circuit
The vacuum switch tube uses products from well-known domestic manufacturers. The
technology is mature, the quality is reliable, and the market reputation is good.
The current rating of 630A adopts the double-acting connection of the end face and the
conductive clip, which has small resistance, low temperature rise, and more reliable.
The conductive row is beautiful, the cross-sectional area is better than that of similar
products, and a reinforcing plate is installed at the upper end of the fixed-end conductive
row to strengthen the connection strength between the copper row and the vacuum tube
and prevent the damage caused by copper row deformation.
• Electromagnetic system
It adopts a closed structure and is equipped with a heat dissipation window to become a
structurally complete electrical product. It fully satisfies the requirements for temperature
rise and the like, and it can prevent the ingestion of dust and ferromagnetic substances and
is safe to use. It is the unique structure of similar products.
Optimize the structure of the operation, reduce the start-up power of the coil and maintain
the power, so the temperature rise is low, the life is long, and it is more reliable.
Set the limit buffer in the limit position of the iron breaker to eliminate the hidden accidents
caused by the excessive amplitude of the rebound. At the same time, the auxiliary switch
starter also uses buffer to reduce the impact force and improve the reliability of the auxiliary
switch.
• Operation Mechanism
The shaft supports are flexible, the force is not stuck, and the axial movement is small,
improving the performance and consistency.
Reasonable operating mechanism to ensure that the vacuum tube moves the axial direction
of the conductive rod. Improved contactor performance and reliability. Makes the same
three-step, spring-jumping index better than similar products.
Increases the contact pressure of the main contact, improving electrical performance and
operating characteristics. The indicators are better than similar products.
The mechanical holding device is self-contained, structurally sound and more reliable to
use.

3. 1
• Easy to use and maintain
The secondary circuit wiring terminals have function flags, and the alignment lines are
separated by a fixed color to prevent the connection error and facilitate the inspection of the
wiring. According to the user's needs, the terminal can be mounted on the front or back of
the machine. The number of auxiliary contacts can be combined according to the
requirements.
++++Technical specification
Performance parameters unit 24/160 24/250 24/400 24/630
Rated operating voltage（Ur） kV 24
Rated operating current（Ie） A 160 250 400 630
Rated closing capacity（Im） kA 1.6 2.5 4 6.3
Rated breaking capacity（Ic） kA 1.28 2 3.2 5.04
Rated withstand overload current and
time time
kA/s 2.4/1 3.75/1 6/1 9.45/1
Rated short-time withstand current（Ik） kA 1.6 2.5 4 6.3
Rated peak withstand current（Ip） kA 4 6.25 10 16
Rated short circuit duration（tk） s 4
Rated
insulat
ion
level
Rated power
frequency
withstand
voltage
Fracture kV 65
Interphas kV 65
Ground kV 65
Rated lightning
impulse withstand
voltage
(peak)
Fracture kV 125
Interphas kV 125
Ground kV 125
Main circuit contact resistance μΩ ≤200 ≤200 ≤200 ≤150
Rated operating frequency Times/h 300
Mechanical locking operation frequency Times/h 60
Mechanical durability (mechanical life) Million
times
100
(For mechanical locking models, the lock device needs to
be replaced every 300,000 times)
Electrical durability (electric
life)
AC3 Million
times
25
(closing current 6Ie breaking current 1Ie)
AC4 Million
times
6
(closing current 6Ie breaking current 6Ie)
++++Control, auxiliary circuit
Control power supply voltage Us:ac./dc. 110V, 220V, 380V or customized according to user

4. 2
requirements.
Control power supply: Electrically self-maintaining: Start <900W Hold <30W.
Mechanical self-holding: closing <800W opening <600W.
Auxiliary contacts: Provides auxiliary contacts for users. The conventional products are two
normally closed three normally open; up to five normally closed six normally open. The
machine is maintained as three normally closed three normally open; up to six normally
closed six normally open.
Auxiliary contact capacity: AC380V 6A; AC220V 10A.
Power frequency withstand voltage: 2kV (except components).
++++Mechnical characteristics
Open and close time ≤ 120ms.
Three-phase synchronization ≤ 2ms.
The minimum pull-in voltage is ≤85%Us and the maximum release voltage is
0% to 75%Us.
++++Overall and installation dimensions

5. 3

6. 4
++++Before order pls clarify of your requirement with our tech
Copyright 2014 Farady Electric
Zhejiang Farady Electric Co.,Ltd
TEL:0086-577-61722510/61777258
Fax:0086-577-61777257
Http://www.farady.cn
Email:info@farady.cn
Add:Xiangyang Industrial Zone,Liushi,Yueqing,Zhejiang,P.R.China,
325604