The document summarizes the specifications of ATyS 3 motorized changeover switches ranging from 125A to 1600A. It provides the key technical details like rated operational currents, thermal currents, insulation voltages, short circuit withstand capabilities, connection details, switching times and control supply requirements for each model in a tabular format. The switches provide switching, source inversion or changeover of two low voltage power circuits under load. They have 3 stable positions, isolation by fully visible breaking and electrical control by dry contacts.

1. A. 140
Functions
ATyS 3 products are 3 and 4-pole switches
remotely controlled by volt free
contacts. They are a combination of two
load-break switches mounted back to
back electrically and mechanically
interlocked.
They provide switching, source inversion
or changeover under load of two low
voltage power circuits, as well as safety
isolation.
The motorised unit can be replaced (spare
part) without disconnection of the power
cables.
For more information see page, A. 136.
Conformity to standards
• IEC 60947-3
• NF EN 60947-3
• NBN EN 60947-3
• BS EN 60947-3
General characteristics
• 3 stable positions (I, 0, II).
• AC-22 and AC-23 switching under load.
• Isolation by fully visible breaking.
• Electrical control by volt free dry
contacts.
• Emergency manual operation
• Padlocking in 0 position (I and II
optional).
• 1 power supply for the ATyS 3s.
• 2 power supplies for the ATyS 3e and
possibility to add optional modules such
as RS 485 communication port.
Available on request
• Specific power supply.
• Overlapping contacts (I, I + II, II).
• 6 or 8- pole switches.
• Different ratings between switches I and
II for high currents.
• By-pass switches.
LL
Functions
References
Characteristics
Accessories: see page A. 148
Dimensions: see page A. 152
Changeover switches
ATyS 3 motorised
switches
125 to 1600 A
SOCOMEC general catalogue
atys_003_a_1_cat
atys_103_a_1_cat
ATyS 3e
ATyS C30
ATyS 3s
ATyS D10
atys_140_b_1_gb_cat
ATyS 3s

2. Standard device - 230 VAC
A. 141
Changeover switches
ATyS 3 motorised switches
References
atys_001_a_1_cat
atys_002_a_1_cat
125 A 160 A 250 A 400 A
ATyS 3s
No. of poles Reference £ / ea Reference £ / ea Reference £ / ea Reference £ / ea
3 pole 1523 3012 consult us 1523 3016 consult us 1523 3025 consult us 1523 3040 consult us
4 pole 1523 4012 consult us 1523 4016 consult us 1523 4025 consult us 1523 4040 consult us
ATyS 3e
3 pole 1533 3012 consult us 1533 3016 consult us 1533 3025 consult us 1533 3040 consult us
4 pole 1533 4012 consult us 1533 4016 consult us 1533 4025 consult us 1533 4040 consult us
Other voltages
12, 24, 48, 110 VDC consult us consult us consult us consult us consult us consult us consult us consult us
Accessories
Plug-in optional modules (ATyS 3e)
COM RS485 (No. 1) 1599 2000 consult us 1599 2000 consult us 1599 2000 consult us 1599 2000 consult us
2 inputs / 2 outputs (No. 2) 1599 2001 consult us 1599 2001 consult us 1599 2001 consult us 1599 2001 consult us
Bridging bars (1 part)
1 pole 4109 0019 10.42 4109 0019 10.42 4109 0025 14.36 4109 0039 15.57
Position I and II auxiliary contacts (factory fitted)
2nd
AC ATyS 3s 1599 1002 consult us 1599 1002 consult us 1599 1012 consult us 1599 1012 consult us
2nd AC ATyS 3e 1599 0002 consult us 1599 0002 consult us 1599 0012 consult us 1599 0012 consult us
Terminal shrouds (1 set)(1)(2)
3 pole 2694 3014 8.02 2694 3014 8.02 2694 3021 15.34 2694 3021 15.34
4 pole
top/bottom/front(I)/rear (II)
top/bottom/front(I)/rear (II) 2694 4014 6.40 2694 4014 6.40 2694 4021 11.98 2694 4021 11.98
Terminal screens (1 set top and bottom)
3 pole 1509 3012 consult us 1509 3012 consult us 1509 3025 consult us 1509 3025 consult us
4 pole 1509 4012 consult us 1509 4012 consult us 1509 4025 consult us 1509 4025 consult us
Padlocking (factory fitted)
“Padlocking in the 3 positions I, 0 and II” option 1599 0003 consult us 1599 0003 consult us 1599 0003 consult us 1599 0003 consult us
Handle key interlocking accessories (factory fitted)
Locking using RONIS EL11AP lock in padlocked position 1509 1006 consult us 1509 1006 consult us 1509 1006 consult us 1509 1006 consult us
Mounting spacers
1 set of 2 1509 0001 consult us 1509 0001 consult us 1509 0001 consult us 1509 0001 consult us
Control voltage transformer
400/230 VAC 1599 4063 consult us 1599 4063 consult us 1599 4063 consult us 1599 4063 consult us
SOCOMEC general catalogue
NO/NC changeover
NO/NC changeover
(1) To shroud front switch top and bottom 2 references required.
(2) To fully shroud front and rear / top and bottom 4 references required.

3. Standard device - 230 VAC
A. 142
LL
Functions
References
Characteristics
Accessories: see page A. 148
Dimensions: see page A. 152
References
ATyS 3s
No. of poles Reference £ / ea Reference £ / ea Reference £ / ea Reference £ / ea
3 pole 1523 3063 consult us 1523 3080 consult us 1523 3100 consult us 1523 3120 consult us
4 pole 1523 4063 consult us 1523 4080 consult us 1523 4100 consult us 1523 4120 consult us
Reference £ / ea
1523 3160 consult us
1523 4160 consult us
ATyS 3e
3 pole 1533 3063 consult us 1533 3080 consult us 1533 3100 consult us 1533 3120 consult us
4 pole 1533 4063 consult us 1533 4080 consult us 1533 4100 consult us 1533 4120 consult us
Other voltages
12, 24, 48, 110 VDC consult us consult us consult us consult us consult us consult us consult us consult us consult us consult us
Accessories
Plug-in optional modules (ATyS 3e)
COM RS485 (No. 1) 1599 2000 consult us 1599 2000 consult us 1599 2000 consult us 1599 2000 consult us
2 inputs / 2 outputs (No. 2) 1599 2001 consult us 1599 2001 consult us 1599 2001 consult us 1599 2001 consult us
1599 2000 consult us
1599 2001 consult us
Bridging bars (1 part)
1 pole 4109 0063 20.35 4109 0080 24.98 4109 0080 24.98 4109 0120 32.68 4109 0160 32.68
Position I and II auxiliary contacts (factory fitted)
2nd
AC ATyS 3s 1599 1022 consult us 1599 1032 consult us 1599 1032 consult us 1599 1032 consult us
2nd AC ATyS 3e 1599 0022 consult us 1599 0032 consult us 1599 0032 consult us 1599 0032 consult us
1599 1032 consult us
1599 0032 consult us
Terminal shrouds (1 set)(1)(2)
3 pole 2694 3051 11.98 - - -
4 pole 2694 4051 12.38 - - -
-
-
1533 3160
1533 4160
Terminal screens (1 set)
3 pole 1509 3063 consult us 1509 3080 consult us 1509 3080 consult us 1509 3080 consult us
4 pole 1509 4063 consult us 1509 4080 consult us 1509 4080 consult us 1509 4080 consult us
1509 3080 consult us
1509 4080 consult us
Padlocking (factory fitted)
“Padlocking in the 3 positions I, 0 and II” option 1599 0003 consult us 1599 0004 consult us 1599 0004 consult us 1599 0004 consult us 1599 0004 consult us
Handle key interlocking accessories (factory fitted)
Locking using RONIS EL11AP lock in padlocked position 1509 1006 consult us 1509 1004 consult us 1509 1004 consult us 1509 1004 consult us 1509 1004 consult us
Mounting spacers
1 set of 2 1509 0001 consult us - - - -
Control voltage transformer
400/230 VAC 1599 4063 consult us 1599 4120 consult us 1599 4120 consult us 1599 4120 consult us 1599 4120 consult us
Changeover switches
ATyS 3 motorised
switches
125 to 1600 A
SOCOMEC general catalogue
NO/NC changeover
NO/NC changeover
top/bottom/front/rear
top/bottom/front/rear
top/bottom
top/bottom
(1) To shroud front switch top and bottom 2 references required.
(2) To fully shroud front and rear / top and bottom 4 references required.
atys_003_a_2_cat
atys_107_a_1_cat
atys_104_a_1_cat
630 A 800 A 1000 A 1250 A 1600 A

4. A. 143
Changeover switches
ATyS 3 motorised switches
SOCOMEC general catalogue
Rated voltage Load duty category A/B(1)
A/B(1)
A/B(1)
A/B(1)
A/B(1)
A/B(1)
A/B(1)
A/B(1)
A/B(1)
Characteristics (according to IEC 60947-3)
125 A 160 A 250 A 400 A 630 A 800 A
Rated operational currents Ie (A)
400 VAC AC-21 A / AC-21 B 125/125 160/160 250/250 400/400 630/630 800/800
AC-22 A / AC-22 B 125/125 160/160 250/250 400/400 630/630 800/800
AC-23 A / AC-23 B 125/125 160/160 250/250 250/250 500/500 800/800
690 VAC AC-20 A / AC-20 B 125/125 160/160 250/250 400/400 630/630 800/800
AC-21 A / AC-21 B 125/125 160/160 200/250 200/250 500/500 800/800
AC-22 A / AC-22 B 125/125 125/125 125/160 125/160 315/315 800/800
AC-23 A / AC-23 B 63/80 63/80 100/125 100/125 160/200 200/250
220 VDC DC-20 A / DC-20 B 125/125 160/160 250/250 400/400 630/630 800/800
DC-21 A / DC-21 B 125/125 160/160 250/250 250/250 630/630 800/800
DC-22 A / DC-22 B 125/125 160/160 250/250 250/250 500/500 800/800
DC-23 A / DC-23 B 125/125 125/125 200/200 200/200 500/500 800/800
440 VDC DC-20 A / DC-20 B 125/125 160/160 250/250 400/400 630/630 800/800
DC-21 A / DC-21 B 125(2)
/125(2)
125(2)
/125(2)
200(2)
/200(2)
200(2)
/200(2)
500(2)
/500(2)
800(3)
/800(3)
DC-22 A / DC-22 B 125(2)
/125(2)
125(2)
/125(2)
200(2)
/200(2)
200(2)
/200(2)
500(2)
/500(2)
800(3)
/800(3)
DC-23 A / DC-23 B 125(3)/80(3) 125(3)/125(3) 200(3)/200(3) 200(3)/200(3) 500(3)/500(3) 800(3)
/800(3)
(1) A/B: Category with index A = frequent operation - Category with index B = infrequent operation.
(2) 3-pole device with 2 pole in series for the “+” and 1 for the “-”.
(3) 4-pole device with 2 pole in series by polarity.
(4) For a rated operating voltage Ue = 400 VAC.
(5) Total transfer time from when command given to final positions (under the nominal conditions).
Thermal current Ith (40 °C)
Rated insulation voltage Ui (V) 800 800 800 800 1000 1000
Rated impulse withstand voltage Uimp (kV) 8 8 8 8 12 12
Fuse protected short-circuit withstand (kA rms prospective)(4)
Prospective short-circuit current (kA rms) 100 100 50 18 70 50
Associated fuse rating gG (A) 125 160 250 400 630 800
Overload capacity
Rated short-time withstand current 1s Icw (kA rms)
Rated peak withstand current (kA peak)(4)
7
20
7
20
9
30
9
30
13
45
26
55
Connection
Minimum Cu cable section (mm2
) 35 50 95 185 2 x 150 2 x 185
Minimum Cu busbar section (mm2) - - - - 2 x 30 x 5 2 x 40 x 5
Maximum Cu cable section (mm2
) 50 95 150 240 2 x 300 2 x 300
Maximum Cu busbar width (mm) 25 25 32 32 50 63
Min. tightening torque (Nm) 9 9 20 20 20 -
Switching time
I - II or II - I (s)(5) 0.75 0.75 1.3 1.3 1.3 2.6
I - O or II - O (s)(5)
0.45 0.45 0.85 0.85 0.85 1.6
Duration of “electrical blackout” (s) 0.3 0.3 0.6 0.6 0.6 1.5
Power-supply tolerance
Supply 230 VAC min/max +/- 20% (V) 184 / 276 184 / 276 184 / 276 184 / 276 184 / 276 184 / 276
Control supply power demand (During transfer)
Supply 230 VAC inrush/nominal (VA) 420 / 80 420 / 80 400 / 100 400 / 100 420 / 110 450 / 120
Mechanical characteristics
Endurance (number of operating cycles) 10 000 10 000 8 000 8 000 5 000 4 000
Weight 3 p switch (ATyS 3s) (kg) 3.2 3.3 3.7 4.7 5.2 19.6
Weight 4 p switch (ATyS 3s) (kg) 3.3 3.4 3.8 5.2 5.7 23.1
1000 A 1250 A 1600 A
1000/1000 1250/1250 1600/1600
1000/1000 1250/1250 1600/1600
1000/1000 1250/1250 1250/1250
1000/1000 1250/1250 1600/1600
800/800 800/800 1000/1000
800/800 800/800 1000/1000
200/250 200/250 500/500
1000/1000 1250/1250 1600/1600
1000/1000 1250/1250 1250/1250
1000/1000 1250/1250 1250/1250
1000/1000 1250/1250 1250/1250
1000/1000 1250/1250 1600/1600
1000(3)
/1000(3)
1250(3)/1250(3)1250(3)/1250(3)
1000(3)
/1000(3)
1250(3)
/1250(3)
1250(3)
/1250(3)
1000(3)
/1000(3)
1250(3)/1250(3)1250(3)/1250(3)
1000 1000 1000
12 12 12
100 100 100
1000 1250 2 x 800
35
80
35
80
50
110
2 x 240 - -
2 x 50 x 5 2 x 60 x 5 2 x 80 x 5
4 x 185 4 x 185 6 x 185
63 63 100
- 20 40
2.6 2.6 2.6
1.6 1.6 1.6
1.5 1.5 1.6
184 / 276 184 / 276 184 / 276
450 / 120 450 / 120 450 / 120
4 000 4 000 3 000
23.1 24.6 36.1
24.6 29.6 42.1