ABB SACE Emax E4.2 - RTC: Ready to Close Signalling Contact

ABB | SACE Emax 2
234 | © 2013 ABB | 1SDH001000R0002 - L7804
Electrical accessories | 2 - Electrical signalling accessories
RTC: ready to close signalling
contact
RTC
48
46
45
The RTC contact indicates that the circuit-breaker is ready to receive a close command.
The conditions necessary to allow the closing of the circuit-breaker are:
• circuit-breaker open
• springs loaded
• absence of an opening command or a lock in opening
NOTE: If the circuit-breaker is open as a result of the Ekip protection release tripping,
in order to allow it to be closed the Reset signal of the circuit-breaker must have been
restored (press the TU Reset button on the front).
The RTC contact is of the “switched” type and is available in a standard version or in the
versions for digital signals.
The following table provides information on the electrical characteristics:
Characteristics Standard Digital signals
Breaking
capacity
DC
24V - 0.1 A
125V
0.3A @ 0ms -
0.15A @ 10ms -
250V
0.3A @ 0ms -
0.15A @ 10ms -
AC
125V
- 250V
1A cos φ 0,3 -
2A cos φ 0,7 -
3A cos φ 1 -
Minimum load 50mA @ 24V 1mA @ 5V
RTC: Connections
Further information is available on page 156, or on the site http://www.abb.com/abblibrary/
DownloadCenter/, where the wiring diagram is available 1SDM000091R0001.
A4
X
XV
X
XV
A1
A4
RTC
45
48
45
45
48
48
46
46
46
1XB6
3XB6 2
71
Diagram 71
Information on the assembly is available from the web site http://www.abb.com/abblibrary/
DownloadCenter/, in particular with the kit sheet 1SDH001000R0604.