ECN Forum
Posted By: aldav53 sub-panels - 08/19/05 03:36 PM
Do all sub-panels fed from a main panel need to be fused? 10ft tap rule?
Posted By: gfretwell Re: sub-panels - 08/19/05 04:43 PM
Overcurrent devices on feeders are for people who don't understand 240.21(B) [Linked Image]

Seriously a feeder tap needs overcurrent protection but the location of the device(s) depends on the wiring method and the ratio of the feeder size vs the upstream O/C device (AKA 10' rule, 25' rule in the olden days).
You really need specifics before you can make a statement about a tap.
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