ABB | SACE Emax 2
Electrical accessories | 2 - Electrical signalling accessories
257 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
RTC: ready to close signalling
contact
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.
RT C
48
46
45
RTC for E1.2
RT C
48
46
45
RTC for E2.2 - E4.2 - E6.2
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
100mA @ 24V
1mA @ 5V
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
Information on the assembly is available on the website http://www.abb.com/abblibrary/DownloadCenter/,
in particular for E1.2 in the kit sheet
and for E2.2-E4.2-E6.2 in the kit sheet
Summary of Contents for SACE Emax E1.2
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