Page 246 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
RTC: ready to close signalling The RTC contact indicates that the circuit-breaker is ready to receive a closing command.
contact The conditions necessary to allow the closing of the circuit-breaker are:
• circuit-breaker open
• springs charged
• absence of an opening command or of a lock in opening

NOTE: if the circuit-breaker is opened due to the tripping of the Ekip protection trip unit, in
order to allow closing, the Reset signal of the circuit-breaker must have been reset (press
the TU Reset pushbutton on the front panel).
The RTC is a "switching" contact type and is available in the standard version or in the versions for digital
signals.

45

46
48
RT C

RTC for E1.2

45

46
48
RT C

RTC for E2.2 - E4.2 - E6.2
The following table provides information on the electrical characteristics:
Characteristics Standard Digital signals
24V - 0.1 A
0.3A @ 0ms -
125V
DC 0.15A @ 10ms -
Breaking 250V 0.3A @ 0ms -
capacity 0.15A @ 10ms -
1A cos φ 0.3 -
AC 125V - 250V 2A cos φ 0.7 -
3A cos φ 1 -
Minimum load 100mA @ 24V 1mA @ 5V

RTC: 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 1SDH000999r0604 and for E2.2-E4.2-E6.2 in the kit sheet
1SDH001000r0604.

244 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Electrical accessories | 2 - Electrical signalling accessories