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12
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power
:: HPGMTXX & GMTXX
The total load for all fuse outputs on each side must not exceed the panel’s load rating: either 60A or100A.
21. Test power and polarity at input of each equipment load.
22. If possible, replace one of the operable GMT fuses with a blown fuse to verify that the applicable FUSE Alarm
LED turns red. Also, check the FUSE alarm terminals on the rear of the panel:
• Expect an open circuit (00Ω) between Terminals C and NC.
• Expect continuity (0Ω) between Terminals C and NO. Re-install operable GMT fuse before proceeding.
If desired, connect remote, external audio/visual panel alarm indicator wires (solid wires, #22 to #18 AWG) to
wirewrap PWR and FUSE alarm pins on rear of panel, as shown below on the right.
23. If desired, connect remote audio/visual bay alarms indicator wires to the
MAJ
(major) and
MIN
(minor) alarm
pins. Also install switch closure wires to the A (activate) and R (reference) pins, as shown above on the left, to
control the bay alarm relay.
24. Re-install terminal cover.
25. Lastly, enable equipment loads one at a time to verify the proper operation of loads.
MAJ MIN
NC
C
NO
R
A
TO ALARM
SYSTEM
TO ALARM
SYSTEM
TO ALARM
SYSTEM
TO ALARM
SYSTEM
EXTERNAL
LOOP
CLOSURE
A - ACTIVATE
R - REFERENCE
NC
C
NO
PWR
A
PWR
B
FUSE
BAY ALARM TERMINALS
ENHANCED PANEL ALARM TERMINALS
Figure 12 - Alarm Schematics (Rear of Designation Card)