1 SD Auxiliary Contacts

1 SD auxiliary contacts are used with Compact NS or NSX circuit breakers, the common-point changeover contacts provide remote circuit breaker status information, they can be used for indication, electrical locking, relaying etc, comply with IEC 60947-5 international recommendations.
A single type of contact provide all the different indication functions:
■ SD (Trip Indication) indicates that the circuit breaker has tripped due to:
□ An overload;
□ A short circuit;
□ Operation of a voltage release;
□ Operation of the “Push to Trip” button;
□ Dis-connection when the device is On;
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Data Sheet
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Electrical characteristics of auxiliary contacts OF/SD

Contacts

Standard

Low level

Types of contacts

All

OF/SD

Rated thermal current, A

6

5

Minimum load

100mA at 24VDC

1mA at 4DVC

Utilization category, IEC 60947-5

AC12

AC15

DC12

DC14

AC12

AC15

DC12

DC14

Operational current, A

24V

AC/DC

6

6

6

1

5

3

5

1

48V

AC/DC

6

6

2.5

0.2

5

3

2.5

0.2

110V

AC/DC

6

5

0.6

0.05

5

2.5

0.6

0.05

220/240V

AC

6

4

-

-

5

2

-

-

250V

DC

-

-

0.3

0.03

5

-

0.3

0.03

380/440V

AC

6

2

-

-

5

1.5

-

-

480V

AC

6

1.5

-

-

5

1

-

-

660/690V

AC

6

0.1

-

-

-

-

-

-

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