This document provides information on SOCOMEC's ATyS 3 motorised changeover switches, including: 1. The ATyS 3 products are 3 and 4-pole remotely controlled switches that provide switching, source inversion, or changeover of two low voltage power circuits as well as safety isolation. 2. The document lists specifications, characteristics, references, accessories, and dimensions for ATyS 3 switches ranging from 125A to 1800A. 3. Accessories include terminal shrouds, auxiliary contacts, control voltage transformers, and padlocking options that can be factory fitted.

1. A. 132 This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
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.
Conformity to standards
• IEC 60947-3
• EN 60947-3
• NBN EN 60947-3
• BS EN 60947-3
General characteristics
• 3 stable positions (I, 0, II) or overlapping
contacts on request (I, I+II, II).
• AC-22 and AC-23 switching under load.
• Isolation with positive break indication.
• Electrical control by volt free dry
contacts.
• Manual emergency 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 of adding optional modules
such as an RS 485 communication port.
• Available enclosed, see page “Non-
Automatic Transfer Switch ATyS 3
enclosed range”, C.24.
Available on request
• Specific control voltages.
• Overlapping contacts (I, I + II, II).
LL
Functions
References
Characteristics
Accessories: see page A.142
Dimensions: see page A.148
Changeover switches
ATyS 3
motorised switches
125 to 1800 A
SOCOMEC general catalogue
atys_003_a_1_cat
atys_103_a_1_cat
ATyS 3e
ATyS 3s
1
2
3
4
4
5
6
7
8
atys_614_a_1_x_cat
Overview (for further details, please see the
installation instructions supplied with each
device).
1. Backup handle and support
(included with device).
2. Handle key interlocking accessories.
3. Standard device.
4. Additional auxiliary contacts.
5. Terminal shrouds.
6. Bridging bars.
7. Mounting spacers.
8. Terminal screens.
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2. A. 133
Changeover switches
ATyS 3 motorised switches
References
atys_001_a_2_cat
atys_002_a_2_cat
Standard device - 230 VAC
ATyS 3s
No. of poles References References References References
3 pole 1523 3012 1523 3016 1523 3025 1523 3040
4 pole 1523 4012 1523 4016 1523 4025 1523 4040
ATyS 3e
3 pole 1533 3012 1533 3016 1533 3025 1533 3040
4 pole 1533 4012 1533 4016 1533 4025 1533 4040
Other voltages
12, 24 VDC consult us consult us consult us consult us
Accessories
Bridging bars
1 pole 4109 0019 4109 0019 4109 0025 4109 0039
Plug-in optional modules (ATyS 3e only)
COM RS485 (No. 1) 1599 2000 1599 2000 1599 2000 1599 2000
2 inputs/2 outputs (No. 2) 1599 2001 1599 2001 1599 2001 1599 2001
Terminal shrouds (1 set) (1)(2)
3 pole top / bottom / front (I) / rear (II) 2694 3014 2694 3014 2694 3021 2694 3021
4 pole top / bottom / front (I) / rear (II) 2694 4014 2694 4014 2694 4021 2694 4021
(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) Factory assembly only.
Terminal screens (1 set top and bottom)
3 pole 1509 3012 1509 3012 1509 3025 1509 3025
4 pole 1509 4012 1509 4012 1509 4025 1509 4025
Pre-breaking and signalling of position I and II auxiliary contacts
2nd
AC NO/NC changeover ATyS 3s 1599 1002 1599 1002 1599 1012 1599 1012
2nd
AC NO/NC changeover ATyS 3e 1599 0002(3)
1599 0002(3)
1599 0002(3)
1599 0002(3)
Control voltage transformer
400/230 VAC 1599 4063 1599 4063 1599 4063 1599 4063
Padlocking (factory fitted)
“Padlocking in the 3 positions I, 0 and II” option 1599 0003 1599 0003 1599 0003 1599 0003
Key handle interlocking system (factory fitted)
Locking using RONIS EL11AP lock in padlocked position 1509 1006 1509 1006 1509 1006 1509 1006
Mounting spacers
1 set of 2 spacers 1509 0001 1509 0001 1509 0001 1509 0001
Door protective surround
1529 0012 1529 0012 1529 0012 1529 0012
SOCOMEC general catalogue This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
400 A250 A160 A125 A
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3. References
1523 3120
1523 4120
1533 3120
1533 4120
consult us
4109 0120
1599 2000
1599 2001
1509 3080
1509 4080
1599 1032
1599 0032(1)
1599 4120
1599 0004
1509 1004
1529 0080
A. 134 This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
L
Functions
References
Characteristics
Accessories: see page A.142
Dimensions: see page A.148
References
atys_003_a_3_cat
atys_107_a_2_cat
Standard device - 230 VAC
ATyS 3s
No. of poles References References References
3 pole 1523 3063 1523 3080 1523 3100
4 pole 1523 4063 1523 4080 1523 4100
ATyS 3e
3 pole 1533 3063 1533 3080 1533 3100
4 pole 1533 4063 1533 4080 1533 4100
Other voltages
12, 24 VDC consult us consult us consult us
Accessories
Bridging bars
1 pole 4109 0063 4109 0080 4109 0080
Plug-in optional modules (ATyS 3e only)
COM RS485 (No. 1) 1599 2000 1599 2000 1599 2000
2 inputs/2 outputs (No. 2) 1599 2001 1599 2001 1599 2001
Terminal shrouds (1 set) (1)(2)
3 pole top / bottom / front (I) / rear (II) 2694 3051 - - -
4 pole top / bottom / front (I) / rear (II) 2694 4051 - - -
(1) To fully shroud front and rear / top and bottom 4 references required.
(2) To shroud front switch top and bottom 2 references required.
(3) Factory assembly only.
Terminal screens (1 set top and bottom)
3 pole 1509 3063 1509 3080 1509 3080
4 pole 1509 4063 1509 4080 1509 4080
Pre-breaking and signalling of position I and II auxiliary contacts
2nd AC NO/NC changeover ATyS 3s 1599 1022 1599 1032 1599 1032
2nd AC NO/NC changeover ATyS 3e 1599 0022(3) 1599 0032(3) 1599 0032(3)
Control voltage transformer
400/230 VAC 1599 4063 1599 4120 1599 4120
Padlocking (factory fitted)
“Padlocking in the 3 positions I, 0 and II” option 1599 0003 1599 0004 1599 0004
Key handle interlocking system (factory fitted)
Locking using RONIS EL11AP lock in padlocked position 1509 1006 1509 1004 1509 1004
Mounting spacers
1 set of 2 spacers 1509 0001 - - -
Door protective surround
1529 0012 1529 0080 1529 0080
Changeover switches
ATyS 3
motorised switches
125 to 1800 A
SOCOMEC general catalogue
1250 A1000 A800 A630 A
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4. A. 135
Changeover switches
ATyS 3 motorised switches
References
atys_104_a_2_cat
Standard device - 230 VAC
ATyS 3s
No. of poles References
3 pole 1523 3160
4 pole 1523 4160
References
1523 3180
1523 4180
ATyS 3e
3 pole 1533 3160
4 pole 1533 4160
-
-
Other voltages
12, 24 VDC consult us consult us
Accessories
Bridging bars
1 pole 4109 0160 4109 0160
Plug-in optional modules (ATyS 3e only)
COM RS485 (No. 1) 1599 2000
2 inputs/2 outputs (No. 2) 1599 2001
-
-
Terminal screens (1 set top and bottom)
3 pole 1509 3160
4 pole 1509 4160
1509 3160
1509 4160
Pre-breaking and signalling of position I and II auxiliary contacts
2nd AC NO/NC changeover ATyS 3s 1599 1032
2nd AC NO/NC changeover ATyS 3e 1599 0032(1)
1599 1032
-
(1) Factory assembly only.
Control voltage transformer
400/230 VAC 1599 4120 1599 4120
Padlocking (factory fitted)
“Padlocking in the 3 positions I, 0 and II” option 1599 0004 1599 0004
Key handle interlocking system (factory fitted)
Locking using RONIS EL11AP lock in padlocked position 1509 1004 1509 1004
Door protective surround
1529 0080 1529 0080
SOCOMEC general catalogue This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
1600 A 1800 A
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5. 7 7 9 9 13
20 20 30 30 45
Switching time
I - II or II - I (s)(6) 0.75 0.75 1.3 1.3 1.3
I - 0 or II - 0 (s)(6)
0.45 0.45 0.85 0.85 0.85
Duration of “electrical blackout”(s) 0.3 0.3 0.6 0.6 0.6
Power-supply tolerance
Supply 230 VAC min / max (V) 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
Mechanical characteristics
Endurance (number of operating cycles) 10 000 10 000 8 000 8 000 5 000
Weight of 3 p switch (ATyS 3s) (kg) 3.2 3.3 3.7 4.7 5.2
Weight of 4 p switch (ATyS 3s) (kg) 3.3 3.4 3.8 5.2 5.7
A. 136 This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
L
Functions
References
Characteristics
Accessories: see page A.142
Dimensions: see page A.148
Characteristics (according to IEC 60947-3)
125 A 160 A 250 A 400 A 630 A
Rated operational currents Ie (A)
Rated voltage Load duty category A/B(1) A/B(1) A/B(1) A/B(1) A/B(1)
400 VAC AC-21 A / AC-21 B 125/125 160/160 250/250 400/400 630/630
AC-22 A / AC-22 B 125/125 160/160 250/250 400/400 630/630
AC-23 A / AC-23 B 125/125 160/160 250/250 250/250 500/500
690 VAC(2)
AC-20 A / AC-20 B 125/125 160/160 250/250 400/400 630/630
AC-21 A / AC-21 B 125/125 160/160 200/250 200/250 500/500
AC-22 A / AC-22 B 125/125 125/125 125/160 125/160 315/315
AC-23 A / AC-23 B 63/80 63/80 100/125 100/125 160/200
220 VDC DC-20 A / DC-20 B 125/125 160/160 250/250 400/400 630/630
DC-21 A / DC-21 B 125/125 160/160 250/250 250/250 630/630
DC-22 A / DC-22 B 125/125 160/160 250/250 250/250 500/500
DC-23 A / DC-23 B 125/125 125/125 200/200 200/200 500/500
440 VDC DC-20 A / DC-20 B 125/125 160/160 250/250 400/400 630/630
DC-21 A / DC-21 B 125(3)/125(3) 125(3)/125(3) 200(3)/200(3) 200(3)/200(3) 500(3)/500(3)
DC-22 A / DC-22 B 125(3)/125(3) 125(3)/125(3) 200(3)/200(3) 200(3)/200(3) 500(3)/500(3)
DC-23 A / DC-23 B 125(4)
/125(4)
125(4)
/125(4)
200(4)
/200(4)
200(4)
/200(4)
500(4)
/500(4)
Thermal current Ith (40°C)
Rated insulation voltage Ui (V) 800 800 800 800 1000
Rated impulse withstand voltage Uimp (kV) 8 8 8 8 12
Fuse protected short-circuit withstand (kA rms prospective)(5)
Prospective short-circuit current (kA rms) 100 100 50 18 70
Associated fuse rating (A) 125 160 250 400 630
Overload capacity
Rated short-time withstand current 1 s. Icw (kA rms)
Rated peak withstand current (kA peak) (5)
Connection
Minimum Cu cable section (mm2
) 35 50 95 185 2 x 150
Minimum Cu busbar section (mm2) - - - - 2 x 30 x 5
Maximum Cu cable section (mm2
) 50 95 150 240 2 x 300
Maximum Cu busbar width (mm) 25 25 32 32 50
Min. tightening torque (Nm) 9 9 20 20 20
Changeover switches
ATyS 3
motorised switches
125 to 1800 A
SOCOMEC general catalogue
(1) A/B: Category with index A = frequent operation / Category with index B = infrequent operation.
(2) With terminal shrouds or phase barrier.
(3) 3-pole device with 2 pole in series for the + and 1 pole for the -.
(4) 4-pole device with 2 pole in series by polarity.
(5) For a rated operating voltage Ue = 400 VAC.
(6) Between the order given and the arrival in position (under the nominal conditions).
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6. 26 35 35 50 50
55 80 80 110 110
A. 137
Changeover switches
ATyS 3 motorised switches
Characteristics (according to IEC 60947-3)
Rated operational currents Ie (A)
Rated voltage Load duty category A/B(1)
A/B(1)
A/B(1)
A/B(1)
400 VAC AC-21 A / AC-21 B 800/800 1000/1000 1250/1250 1600/1600
AC-22 A / AC-22 B 800/800 1000/1000 1250/1250 1600/1600
AC-23 A / AC-23 B 800/800 1000/1000 1250/1250 1250/1250
690 VAC(2) AC-20 A / AC-20 B 800/800 1000/1000 1250/1250 1600/1600
AC-21 A / AC-21 B 800/800 800/800 800/800 1000/1000
AC-22 A / AC-22 B 800/800 800/800 800/800 1000/1000
AC-23 A / AC-23 B 200/250 200/250 200/250 500/500
220 VDC DC-20 A / DC-20 B 800/800 1000/1000 1250/1250 1600/1600
DC-21 A / DC-21 B 800/800 1000/1000 1250/1250 1250/1250
DC-22 A / DC-22 B 800/800 1000/1000 1250/1250 1250/1250
DC-23 A / DC-23 B 800/800 1000/1000 1250/1250 1250/1250
440 VDC DC-20 A / DC-20 B 800/800 1000/1000 1250/1250 1600/1600
DC-21 A / DC-21 B 800(4)/800(4) 1000(4)/1000(4) 1250(4)/1250(4) 1250(4)/1250(4)
DC-22 A / DC-22 B 800(4)
/800(4)
1000(4)
/1000(4)
1250(4)
/1250(4)
1250(4)
/1250(4)
DC-23 A / DC-23 B 800(4)/800(4) 1000(4)/1000(4) 1250(4)/1250(4) 1250(4)/1250(4)
A/B(1)
1800/1800
1800/1800
1250/1250
1800/1800
1000/1000
1000/1000
500/500
1800/1800
1250/1250
1250/1250
1250/1250
1800/1800
1250(4)/1250(4)
1250(4)
/1250(4)
1250(4)/1250(4)
(1) A/B: Category with index A = frequent operation / Category with index B = infrequent operation.
(2) With terminal shrouds or phase barrier.
(3) 3-pole device with 2 pole in series for the + and 1 pole for the -.
(4) 4-pole device with 2 pole in series by polarity.
(5) For a rated operating voltage Ue = 400 VAC.
(6) Between the order given and the arrival in position (under the nominal conditions).
Thermal current Ith (40°C)
Rated insulation voltage Ui (V) 1000 1000 1000 1000 1000
Rated impulse withstand voltage Uimp (kV) 12 12 12 12 12
SOCOMEC general catalogue This document is not a contract. SOCOMEC reserves the right to modify features
without prior notice in view of continued improvement. 2006-2007
Fuse protected short-circuit withstand (kA rms prospective)(5)
Prospective short-circuit current (kA rms) 50 100 100 100 100
Associated fuse rating (A) 800 1000 1250 2 x 800 2 x 800
Overload capacity
Rated short-time withstand current 1 s. Icw (kA rms)
Rated peak withstand current (kA peak)(5)
Connection
Minimum Cu cable section (mm2
) 2 x 185 2 x 240 - -
Minimum Cu busbar section (mm2) 2 x 40 x 5 2 x 50 x 5 2 x 60 x 5 2 x 80 x 5
Maximum Cu cable section (mm2
) 2 x 300 4 x 185 4 x 185 6 x 185
Maximum Cu busbar width (mm) 63 63 63 100
Min. tightening torque (Nm) - - 20 40
-
3 x 100 x 5
6 x 185
100
40
Switching time
I - II or II - I (s)(6) 2.6 2.6 2.6 2.6
I - 0 or II - 0 (s)(6)
1.6 1.6 1.6 1.6
Duration of “electrical blackout” (s) 1.5 1.5 1.5 1.6
2.6
1.6
1.6
Power-supply tolerance
Supply 230 VAC min / max (V) 184 / 276 184 / 276 184 / 276 184 / 276 184 / 276
Control supply power demand (during transfer)
Supply 230 VAC inrush / nominal (VA) 450 / 120 450 / 120 450 / 120 450 / 120 450 / 120
Mechanical characteristics
Endurance (number of operating cycles) 4 000 4 000 4 000 3 000
Weight of 3 p switch (ATyS 3s) (kg) 19.6 23.1 24.6 36.1
Weight of 4 p switch (ATyS 3s) (kg) 23.1 24.6 29.6 42.1
3 000
36.1
42.1
800 A 1000 A 1250 A 1600 A 1800 A
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