ABB SACE Emax 2 Series - Internal electronic accessories; 1

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ABB | SACE Emax 2

Electrical accessories

2 - Electrical signalling accessories

S51: trip unit tripping

signalling contact

The S51 contact signals the opening of the circuit-breaker due to tripping of the Ekip protection trip unit.

It is available in two different types:

• standard contact

• contact for digital signals

NOTE:

The standard S51 contact is always included in automatic circuit-breakers, and is

associated with the TU Reset mechanical signalling.

S51

S51 for E1.2

S5 1

S51 for E2.2 - E4.2 - E6.2

The following table provides information on the electrical characteristics:

Characteristics Standard Digital signals

Breaking

capacity

24V - 0.1 A

125V

0.3A @ 0ms -

0.15A @ 10ms -

250V

0.3A @ 0ms -

0.15A @ 10ms -

AC 125V - 250V

1,5A cosφ 0,3 -

3A cosφ 0,7 -

5A cosφ 1 -

Minimum load 100mA @ 24V 1mA @ 5V

S51: Connections

More details are available in the website http://www.abb.com/abblibrary/DownloadCenter/, which also

includes the entire circuit diagram 1SDM000091r0001.

Information on the assembly is available on the website http://www.abb.com/abblibrary/

DownloadCenter/, in particular for E1.2 in the kit sheet 1SDH000999r0605 and for E2.2-E4.2-E6.2 in the

kit sheet 1SDH001000r0605.

ABB SACE Emax 2 Series - Internal electronic accessories; 1 - Rating Plug