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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
12. Insulate lug barrels with UL94 V-0-rated
heat-shrink tubing.
13. Clean the terminals and lugs with a
nonabrasive, nonmetallic pad.
14. If required, lightly coat an antioxidant on the
lugs and input BATT and RETURN terminals.
15. Connect the lugs to input terminals on the
back of the panel, as shown in Figure 5.
16. Tighten the lugs to 140 in-lb. (~15.5 N•m), max.
17. Make sure all interrupter positions are either empty,
off or contain dummy fuses (phony, inoperative
all-plastic slugs.)
18. Enable the fuse or breaker at the primary distribution
unit or battery (440A max.) to turn on Feed A to
Side A of the panel and then check the voltage and
polarity at input connectors of panel.
Also check that:
•
POWER A
LED on the front of the panel turns
on (green).
•
POWER B
LED is off.
19. Repeat the previous step with Feed B and verify
POWER B
LED.
20. With
POWER A
and
B
LEDs green (normal operation),
test power-fail relay and contacts at
POWER FAIL
alarm terminals on the rear of the panel:
•
Expect continuity (0
Ω
) between Terminals
C
and
NC
.
•
Expect an open circuit (
∞
Ω
) between Terminals
C
and
NO
.
21. Test fuse alarm relay contacts at
ALARM
(CB/Fuse
Alarm) terminals on the rear of the panel.
•
Expect continuity (0
Ω
) between Terminals
C
and
NC
.
•
Expect an open circuit (
∞
Ω
) between Terminals
C
and
NO
.
Fig. 5: Input Lug Connections
Fig. 6: Alarm Faceplate
POWER
POWER
ALARM
A
B
