Rtc: Ready To Close Signalling Contact - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

RTC: ready to close signalling
contact
257 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
The RTC contact indicates that the circuit-breaker is ready to receive a closing command.
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.
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
24V
125V
DC
Breaking
250V
capacity
AC 125V - 250V
Minimum load
RTC: Connections
Further information is available on page 174, or on the website http://www.abb.com/abblibrary/
DownloadCenter/, where the wiring diagram is available 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
1SDH001000r0604.
45
46
48
RT C
Standard
-
0.3A @ 0ms
0.15A @ 10ms
0.3A @ 0ms
0.15A @ 10ms
1A cos φ 0.3
2A cos φ 0.7
3A cos φ 1
100mA @ 24V
1SDH000999r0604
ABB | SACE Emax 2
Digital signals
0.1 A
-
-
-
-
-
-
-
1mA @ 5V
and for E2.2-E4.2-E6.2 in the kit sheet
Electrical accessories | 2 - Electrical signalling accessories