abrace
Member
- Location
- New Hampshire
- Occupation
- Telecommunications Engineering
All,
Please help me settle a disagreement. There is an outbuilding being wired up with a 240V single phase 125A feeder fed off of the main distribution panel in the main building. A SquareD 200A unfused exterior disconnect will be on the outside of the building, but it was only available in a 3PH configuration so that is what was purchased.
Well, it arrived w/o a Neutral terminal block and that apparently has to be ordered separately for over $100. We do have the EGC ground bar however.
I contend that per 404.2(b) we can actually use the unused third pole on the disconnect switch to land the neutral on and we can skip the expensive Neutral terminal block. The neutral will end up being switched, but since the switch throws all 3 poles at the same time, we are covered.
Others here are telling me that this not permitted. So, who is right?
Answer doesn't really matter as we ordered the terminal block anyways, but I just need to know. Pride is on the line! :happyno:
---Aaron
Please help me settle a disagreement. There is an outbuilding being wired up with a 240V single phase 125A feeder fed off of the main distribution panel in the main building. A SquareD 200A unfused exterior disconnect will be on the outside of the building, but it was only available in a 3PH configuration so that is what was purchased.
Well, it arrived w/o a Neutral terminal block and that apparently has to be ordered separately for over $100. We do have the EGC ground bar however.
I contend that per 404.2(b) we can actually use the unused third pole on the disconnect switch to land the neutral on and we can skip the expensive Neutral terminal block. The neutral will end up being switched, but since the switch throws all 3 poles at the same time, we are covered.
Others here are telling me that this not permitted. So, who is right?
Answer doesn't really matter as we ordered the terminal block anyways, but I just need to know. Pride is on the line! :happyno:
---Aaron