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Signal auxiliary contact (AK), auxiliary contact (DK) and coincident contacts (AD/DK)

Description


Signal auxiliary contact AK is intended for giving out a signal when a circuit breaker actuates from:

  • overcurrent (overload or short circuit);
  • shunt trip;
  • undervoltage trip;
  • “TEST” button.

When the main contacts return to “switch on” position, the signal turns off.

DK auxiliary contact is designed for giving out a signal about the CB power contacts status (switched on/off).

Coincident AK/DK contacts (auxiliary and signal contacts in one casing) are intended for obtaining information on the status of VA88 MCCB contacts and giving out a signal in case of its actuation from overcurrent, shunt trip or undervoltage release.

Range


 

Name

MCCB type

Package amount, pcs.

Product ID

multiple

transport

AK-125/160 (AK-32/33)

VA88-32, VA88-33

20

480

SVA10D-AK-1

DK-125/160 (DK-32/33)

VA88-32, VA88-33

20

480

SVA10D-DK-1

AK/DK-125/160 (AK/DK-32/33)

VA88-32, VA88-33

12

240

SVA10D-AK-DK-1

 

AK-250/400 (AK-35/37)

VA88-35, VA88-37

10

240

SVA30D-AK-1

DK-250/400 (DK-35/37)

VA88-35, VA88-37

10

240

SVA30D-DK-1

AK/DK-250/400 (AK/DK-35/37)

VA88-35, VA88-37

10

240

SVA30D-AK-DK-1

 

AK-800/1600 (AK-40/43)

VA88-40, VA88-43

5

120

SVA50D-AK-1

DK-800/1600 (DK-40/43)

VA88-40, VA88-43

5

120

SVA50D-DK-1

AK/DK-800/1600 (AK/DK-40/43)

VA88-40, VA88-43

5

120

SVA50D-AK-DK-1

Technical Features


Contact type

Rated thermal current, A

Rated operating current at supply voltage, A

230V, 50Hz

400V, 50Hz

220V, DC

AK-125/160, DK-125/160, AK/DK-125/160

4

3

-

0,14

AK-250/400, DK-250/400, AK/DK-250/400

8

6

3,5

0,2

AK-800/1600, DK-800/1600, AK/DK-800/1600

8

6

3,5

0,2

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