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For troubleshooting, call technical assistance at 1-800-237-4567 or [email protected]
18
IO-70061
01/2020
ASCO 430 Surge Protective Device (SPD)
Operation
The dry contacts are designed for a maximum voltage of 24 V dc / 24 V
ac and a maximum current of 2 A. Higher energy applications may require
additional relay implementation outside the SPD. Damage to the SPD’s
relay caused by use with energy levels in excess of those discussed in this
instruction bulletin are not covered by warranty. For application questions,
call the ASCO Tech Support at (800) 237-4567 or email customercare@
ascopower.com.
Table 3:
Dry Contact Configuration
Dry Contact Terminal
Power off or Alarm Condition
Power on and no Alarm
Condition
N/O
(Normally Open)
Open
Closed
COM
Common
Common
Common
N/C
Normally Closed
Closed
Open
The remote monitor option has two LEDs, one red and one green, and an
audible alarm with an enable/disable switch. Normal status is a lit green
LED, and no audible alarm. To test the integrity of the remote monitor, press
the push-to-test switch. The green LED will turn off, the red LED will turn on,
and the alarm will sound, if the alarm is enabled. Releasing the switch will
complete the test; the red LED will turn off, the green LED will turn on and
the alarm will shut off.
If suppression on any phase is lost, the green LED will turn off, the red LED
will illuminate and an alarm will sound. The audible alarm can be silenced by
pushing the alarm enable/disable/test switch. The alarm will silence and the
green alarm LED will not be lit. The red LED will continue to be illuminated
until the inoperative condition has been cleared.
The remote monitor includes a 120 V ac to 12 V dc adapter with a six-foot
power cord. Connections are made to the ASCO 430 SPD diagnostic panel
with the twenty-four inch (61 cm) dry contact leads (provided). To extend the
remote monitor further (up to 1,000 ft. (305 m), use an additional length of
solid or stranded 22 to 14 AWG wire (not provided).
Remote Monitor Option