Here is another thinker, i have two large SMC's right next to eacother in an enclosure, I am taping from the bus to the top of the fuse disconnect on the larger starter (rated 180A), now can i tap from a dual tap lug on the top of that disconnect over to the other disconnect on the smaller starter (rated 124A)?? Is this something doable or should I not even go there.
Tap Rule, Can you tap a tap?
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petersonra
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- Northern illinois
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- engineer
Re: Tap Rule, Can you tap a tap?
You can't but if its a UL listed panel the panel builder can.
Re: Tap Rule, Can you tap a tap?
The first paragraph of 240.21 basically says you can't "tap a tap". But, if the wire you are using is protected at its ampacity, it isn't really a tap. Say the feeder to your fused disconnect is protected by a 400A breaker upstream. Then if you 500kcm wire, you can daisy chain the starters.
Steve
The first paragraph of 240.21 basically says you can't "tap a tap". But, if the wire you are using is protected at its ampacity, it isn't really a tap. Say the feeder to your fused disconnect is protected by a 400A breaker upstream. Then if you 500kcm wire, you can daisy chain the starters.
Steve
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