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

ABB | SACE Emax 2
80 | © 2014 ABB | 1SDH000999R0002 - L8569
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 opened due to the tripping of the Ekip protection release, in
order to allow closing, the Reset signal of the circuit-breaker must have been reset (press
the TU Reset key on the front panel).
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 58, 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 1SDH000999R0604.