S51: Trip Unit Tripping Signalling Contact - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User
Low voltage air circuit-breakers
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S51: trip unit tripping signalling
contact
95
96
98
S51
82 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
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.
The following table provides information on the electrical characteristics:
Characteristics
24V
125V
DC
Breaking
250V
capacity
AC
125V - 250V
Minimum load
S51: Connections
Further information is available on page 59, or on the site http://www.abb.com/abblibrary/DownloadCenter/,
where the wiring diagram is available 1SDM000091R0001.
Diagram 11
Information on the assembly is available on the web site http://www.abb.com/abblibrary/DownloadCenter/,
in particular with the kit sheet 1SDH000999R0605.
Standard
-
0.3A @ 0ms
0.15A @ 10ms
0.3A @ 0ms
0.15A @ 10ms
1.5A cos φ 0.3
3A cos φ 0.7
5A cos φ 1
100mA @ 24V
11
A4
X
96
98
XV
96
98
XB7
2
3
A1
S51
XB7
1
XV
95
X
95
A4
Electrical accessories | 2 - Electrical signalling accessories
ABB | SACE Emax 2
Digital signals
0.1 A
-
-
-
-
-
-
-
1mA @ 5V
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