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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
.
A4
X
XV
X
XV
A1
A4
RTC
45
48
45
45
48
48
46
46
46
1
XB6
3
XB6
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
.