13.Make sure power is off [open breaker, dummy fuse, or vacant fuse holder at power distribution unit (PDU)] before connecting this panel’s cables to PDU.
14.Make sure that only dummy GMT fuses are install in this panel or that the GMT fuse holders are vacant.
15.Enable fuse or breaker at PDU (25A max. for Model
16. Check voltage and polarity at input connectors of panel. Also, check that —
• | The A LED on front of panel turns on (green). | A | B |
• | The B LED must remain red. |
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If the A LED doesn’t turn green, recheck polarity at input connectors. (Reversing input | FAIL |
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RELAY |
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connections will not harm the panel.) If the input power leads were reversed, the fuse fail | NO C NC | NO C NC | |
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 above.
17.On the rear of the panel, with A LED lit (normal operation) — but with B LED off (failure operation) — test the
•Expect continuity (0Ω) between Terminals C and NC.
•Expect an open circuit (∞Ω) between Terminals C and NO.
Conversely, when testing the
•Expect an open circuit (∞Ω) between Terminals C and NC.
•Expect continuity (0Ω) between Terminals C and NO.
18.Repeat Steps 15 to 17 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.
19.For output wiring, strip off ¼ in. (~7 mm) of insulation.
Like the input terminals, the output terminals are
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 inherent 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 ex- ample, 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
20.Telect recommends that you lightly coat
21.Connect other end of output wires to load.
22.Record circuits on designation card provided, as specified by operating company proce- dures.(The front side of the card is shown on the right.)
The designation card has entries for Outputs
23.Make sure inputs at loads are disabled by removing all power cards or all input fuses at load equipment. (Always follow recommended operating company guidelines when disabling load equipment.)
INPUT FUSE |
| INPUT FUSE |
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FUSE | AMP |
| CIRCUIT | FUSE | AMP |
| CIRCUIT |
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INPUT FUSE |
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FUSE | AMP |
| CIRCUIT | FUSE | AMP |
| CIRCUIT |
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6 |
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Telect, Inc. • USA +1.509.926.6000 • Mexico +52.33.3836.3700 |
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Poland +48.713.239.100 • UK +44.1489.889500 • www.telect.com | Page 6 |
Copyright © 2006 Telect, Inc., All Rights Reserved • |