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10
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power
:: HPGMTXX & GMTXX
ALM
ALM
B
B
A
A
MAJOR
MINOR
FUSE
PWR
FUSE
PWR
Figure 8 - Status LEDs on Face of
Removable Alarm Card
MAJ MIN
PWR
A
PWR
B
FUSE
NC
C
NO
A
R
Figure 9 - Alarm Terminals on Rear of Panel
Figure 10 - Output Connections
12. Enable protection device (fuse or breaker) at
primary PDU to turn on Feed A to Side A of panel
and then check voltage and polarity at input
connectors of panel. Also, check that
• PWR A LED on front of panel turns on (green).
• PWR B LED and both FUSE LEDs must be off.
13. With PWR A lit — but with PWR B LED off — test
power-fail relay and contacts at PWR A alarm
terminals on rear of panel:
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals C
and NO.
14. Also, test fuse alarm relay contacts at FUSE alarm
terminals, then
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals
C and NO.
15. Repeat Steps 12 through 14 to power up Side B.
PWR A and PWR B LEDs must both be green.
16. With PWR A and PWR B lit, test power-fail relay
and contacts at PWR A and PWR B alarm
terminals:
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals
C and NO.
17. Make sure none of the fuse positions contain real,
operable fuses.
18. For GMT output wiring, proceed as follows:
For all Models except GMT20 —
a. Working with one wire at a time, either:
•
Crimp a single-hole ring or fork lug for a #6-32
screw-post terminal, as required by NEC, or
•
Strip 3/8 in. (10 mm) of insulation from a #26
to #12 copper wire for a bare-wire connection.
b. Clean the panel terminals and lug (if applicable)
with a nonabrasive, nonmetallic cleaning pad.
c. If required, lightly coat anti-oxidant on lug/wire
and output BATT and RTN terminals, and then
connect to terminals.