High-Power GMT Series Fuse Panels
Models 0HPGMT Installation Guide
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6
Mechanical Interface:
Specifications:
Input terminals – Compression
Stud:
Lugs:
Cable:
Torque:
¼-20 with nut. [Use 7/16" (12 mm) socket]
Dual-hole compression lug
(5/8" center to center) 0.516 in. (13.4 mm) max. lug width
Up to 1/0 AWG copper, depending on input interruption device
50 in.-lb (~5.5 N·m), max.
Output terminals –
Wire binding/compression
Screw:
Wire:
Lug:
Spacing:
Torque:
#6 Phillips* panhead
14 to 22 AWG, copper wire
10 to 22 AWG, copper wire
3/8" (9.5 mm) centerline with barrier distance of .260 in. (6.6 mm)
6.5 in.-lb (~0.75 N·m), max.
Alarm terminals – Wire wrap
.045 in. square wirewrap pins on .156 in. centers
Use 18 to 22 AWG copper
Ground terminals
Screws:
Lugs:
Cable:
Torque:
2 #10 Phillips* panheads
Single- or dual-hole compression lug (5/8" center to center)
Dual-hole lug is recommended
Up to #6 AWG copper for single-hole lug (Conductor size depends
on input interruption device)
21 in.-lb (~2.5 N·m), max.
* Screws with cross-recessed heads
Dimensions:
Specifications:
Dimensions (nominal)†,
without brackets for all but
0HPGMT12R & 0HPGMT02R
Width:
Height:
Depth:
17" (432 mm)
1.75" (44.4 mm)
12" (305 mm)
Dimensions (nominal)†,
without brackets for
0HPGMT02R
Width:
Height:
Depth:
21" (533 mm)
1.75" (44.4 mm)
12" (305 mm)
Dimensions (nominal)†,
without brackets for
0HPGMT12R
Width:
Height:
Depth:
17" (432 mm)
3.5" (89 mm)
7.5" (190 mm)
† See Pages 17 and 18 for exact dimensions
Electrical Interface:
Specifications:
Operating voltages
-48 VDC, both sides
Current capacity:
All Except
0HPGMT05NR
0HPGMT05NR
100A per bus (200A total for dual-circuit panels), max.
75A per bus (150A total for both buses)
Fuse capacity:
Single circuit:
Dual circuit:
10, 20, or 30
20, 30, or 40 (total, both circuits)
Maximum input interruption device rating
125A for a 100A bus
90A for 75A bus
Maximum output interruption device rating
15A GMT fuse
Interrupt rating
450A
Short circuit withstand current
450A
Alarm contact relay
2A
Alarm board power rating @ 48 VDC
1W
Panel heat dissipation per 100A bus
@% load
1.0W (3.4 BTU/hr) @ 0%
1.2W (4.1 BTU/hr) @ 25%
4.8W (16.5 BTU/hr) @ 50%
11.4W (38.7 BTU/hr) @ 75%
21.3W (72.6 BTU/hr) @ 100%
Percentage of full load heat dissipation at
nominal voltage
Less than 1% of total load wattage