Re: OT - Pulling Single Phase from 3 Phase Service

Posted by David Midkiff on August 07, 2007 at 04:13:58 from (12.40.253.154):

In Reply to: OT - Pulling Single Phase from 3 Phase Service posted by Jim in DE on August 06, 2007 at 18:49:03:

Yes you can get 240 vac single phase from your 480y/277 service. You will need a control power transformer (CPT)480x240v primary, 240x120v secondary, a 600V on/off switch, and 2 fuses/fuse holders, and 12 Gauge wire and lugs, plus a nema 12 box if being used outside large enough to put the components inside. I recommend Square D parts, CPT - 5 kVA part #5S1F (20 amps output), Switch part #2510-KO2, 600V 20 amp fuses and fuse holders of your choice. Connect 1 wire to "A" phase and 1 wire to "C" phase and connect to the 480V side of your CPT. Install switch and fuses between CPT and your 480V source. A electrical supply house can supply you with these items.

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