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Amphenol Network Solutions
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Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
29. For GMT output wiring, use #22- to #12-AWG
copper wire. (Work with one wire at a time.) At
the panel end of the wire, crimp a single-hole
ring or fork lug, as required by the NEC.
30. Clean the panel terminals and lug (if applicable)
with a nonabrasive, nonmetallic pad.
31. If required, lightly coat antioxidant on the lug/wire
and output
BATT
and
RETURN
terminals, and then
connect to terminals, as shown in Figure 8. (NEC
specifies only one load at each output terminal.)
32. Tighten the panhead screws to no more than 6.3
in-lb. (~0.7 N
•
m).
33. Connect the other end of the output wire to load.
ALERT! GMT fuses have a small inherent electrical resistance resulting in a small inherent power loss. For this
reason, GMT fuse manufacturer recommends that the load for GMT fuses up to and including 7.5A not exceed
80% of the fuse rating and that the load for GMT fuse sizes between 10A and 15A not exceed 70% of the fuse
rating. For example, the load for a 15A GMT fuse should not exceed 10.5A (15A x .70 = 10.5A).
34. Make sure the circuit breakers or fuse holders are switched off, empty or contain dummy devices. Also make sure
load devices and/or distribution units are disabled. (Normally, circuit breakers are OFF when the switch operator
[handle] is down.) Then install circuit breakers or fuse holders and fuses for the dual-hole lug outputs, as shown
in Figure 9.
35. Again, make sure the load devices are disabled and then install the GMT fuses, as shown.
Fig. 8: GMT Output Lug Connections
