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Information
-
Electrical connections
Alarm Terminal Blocks
Alarm Closure pin definitions for isolated contact closures (relays rated at 75V
DC
and 0.5A with 3 to 5 ms
switching times.
DC OK, SPD OK, and AC OK Alarm Terminal Blocks
Pin #
Signal
Notes
1
N/C
Contact closure indicates alarm
2
Comm
3
N/O
Contact open indicates alarm
Pin #
Signal
Notes
1
GND
2
GND
+DC
RTN
-
48V
DC Output Connections
For
-
48V connections:
•
Circuit Breaker Version: Directly wired to the circuit breaker itself or;
•
Fuse Version: Wired to the terminal block aligned with its corresponding fuse holder
For +DC Returns: wired to the common return bus
Note: The output source is common and electrically protected from short circuit. Maximum current delivered is
limited. When the output is short circuited, the unit will cycle on and off with a interval of about 14
seconds. Short circuit hiccup is disabled for the first 20 seconds after start up to support the inrush
requirements of the load.
GND
DC OK
SPD OK
AC OK
Figure 14 Alarm connections
Figure 15 DC output connections
