© Telect, Inc. All rights reserved. 3.6.17 v.2
1.509.926.6000 :: telect.com
Low-Current 20/20 GMT Series Fuse Panels
Power :: Models 06004-01 & 06004-11 Installation Guide
8
19. Check voltage and polarity
at the input connectors of the panel.
Also, check that:
• The
A
LED on front of the panel turns on (green)
• The
B
LED must remain red
If the
A
LED doesn’t turn green, recheck polarity at input connectors.
(Reversing input connections will not harm the panel.) However, if the input
power leads were reversed, the fuse fail relay will fail to energize, causing
the normally open contacts to remain closed and normally closed contacts to
remain open. If necessary, check across the FAIL RELAY alarm pins located
on the rear of the panel as shown in Figure 9.
20. On the rear of the panel, with
A
LED lit (normal operation), but with
B
LED off
(failure operation), test the Side-A FAIL RELAY pins:
•
Expect continuity (0Ω) between Terminals
C
and
NC
•
Expect an open circuit (∞Ω) between Terminals
C
and
NO
21. Conversely, when testing the Side-B pins:
•
Expect an open circuit (∞Ω) between Terminals
C
and
NC
•
Expect continuity (0Ω) between Terminals
C
and
NO
22. Repeat Steps 18 to 21 for Feed B and observe that the
B
LED turns green. Across all FAIL
RELAY alarm pins:
•
Expect continuity (0Ω) between Terminals
C
and
NC
•
Expect an open circuit (∞Ω) between Terminals
C
and
NO
23. For output wiring, strip off ¼ in. (~7 mm) of insulation.
Like the input terminals, the output terminals are screw-tight, wire-clamping. The output terminals
will accommodate 14-AWG to 6-AWG conductors. Like the output terminals, stranded wires
for outputs should be tinned.
Remember: output conductors must be rated at or above the amperage rating of the GMT fuse. For example, use no
smaller than #16-AWG output wiring for 10A output fuses. Do not exceed 8A continuous load for a 10A fuse.
Telect, Inc. • USA +1.509.926.6000 • 52.33.3836.37.52
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Page 8
19. Check voltage and polarity
at the input connectors of the
panel
. Also, check that
• The
A
LED on front of the panel turns on (green).
• The
B
LED must remain red.
If the
A
LED doesn’t turn green, recheck polarity at input con-
nectors. (Reversing input connections will not harm the pan-
el.) However, if the input power leads were reversed, the fuse
fail relay will fail to energize, causing the normally open contacts to remain closed and nor-
mally closed contacts to remain open. If necessary, check across the FAIL RELAY alarm pins
located on the rear of the panel and shown in Figure 9.
20. On the rear of the panel, with
A
LED lit (normal operation), but with
B
LED off (failure opera-
tion), test the Side-A FAIL RELAY pins.
• Expect continuity (0
Ω
) between Terminals
C
and
NC
.
• Expect an open circuit (
∞Ω
) between Terminals
C
and
NO
.
21. Conversely, when testing the Side-B pins,
• Expect an open circuit (
∞Ω
) between Terminals
C
and
NC
.
• Expect continuity (0
Ω
) between Terminals
C
and
NO
.
22. Repeat Steps 18 to 21 for Feed B and observe that the
B
LED turns green. Across all FAIL
RELAY alarm pins
• Expect continuity (0
Ω
) between Terminals
C
and
NC
.
• Expect an open circuit (
∞Ω
) between Terminals
C
and
NO
.
23. For output wiring, strip off ¼ in. (~7 mm) of insulation.
Like the input terminals, the output terminals are screw-tight, wire-clamping. The output ter-
minals will accommodate 14-AWG to 6-AWG conductors. Like the output terminals, stranded
wires for outputs should be tinned.
Remember: output conductors must be rated at or above the amperage rating of the GMT fuse.
For example, use no smaller than #16-AWG output wiring for 10A output fuses. Do not exceed
8A continuous load for a 10A fuse.
ALERT
!
ALERT! GMT fuses have a small inherent electrical resistance resulting in a small inher-
ent power loss. For this reason, the 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
10A GMT fuses not exceed 70% of the fuse rating. (For example, 10A fuse x .70 = 7A max.
load).
Total load for all GMT outputs on each side
must not exceed 20A for a panel
without
a fail-safe circuit, or 15A for a panel
with
a fail-safe circuit.
FAIL
RELAY
NO C NC
A
B
NO C NC
Figure 10 - Fail Relay
Alarm Pins
Figure 10 - Fail Relay
Alarm Pins
ALERT
!
ALERT! GMT fuses have a smaller inherent electrical resistance resulting in a small inherent pow-
er loss. For this reason, the 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 10A GMT fuses not
exceed 70% of the fuse rating. (For example, 10A fuse x .70 = 7A max. load).
Total load of all GMT
outputs on each side
must not exceed 20A for a panel
without
a fail-safe circuit or 15A for a panel
with
a fail-safe circuit.
