Description: The three hot wires are A, B and C . A 120 volt single phase circuit uses one breaker "space" on this box that is 1 inch wide. A 240 or 208 volt single phase circuit uses two breaker "spaces" on this box. A 240 or 208 volt three phase circuit uses a 3 phase breaker that is 3 inches wide and it uses all phases of A, B and C. A restaurant often is wired a 3 Phase service as 120 volt / 208 volt 3 phase. Big loads like the AC run off the 208 volt 3 phase and use a 3 pole breaker that uses phases A, B and C. The small stuff often use plain single phase 120 volts and each circuit uses one hot phase and the Neutral buss bar.
Three Phase Breaker box and how it holds 1, 2 or 3 pole breakers - Download MP3 music or MP4 video:
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In reference to comments made on (Electrical Wiring- Residential 3 phase service) I wanted to expand on this subject: The video titled "Residential 3 phase s...
http://www.sparkyuonline.com In this video I am describing how a 3 phase panel is built and how the bussing works in accordance w/3 phase power. It is part o...
Learn how to wire up an appliance that requires 240V. See how to wire up a circuit breaker in your electrical panel.
Finally, the new version of my epic video on Breaker Boxes. The video covers electrical safety, how breaker boxes are laid out and work as well as a discussi...
This diagram shows a 3 phase delta breaker in a single phase breaker box. The NEC allowed this until 1978 for a new install. The special HIGH LEG DELTA Break...
Jones Air Conditioning www.jonesairconditioning.com 3920 Progress Ave Suite A5 Naples, FL 34104 239-596-5855.
Residential 3 phase service upgrade.http://www.electricalindustrynetwork.com A/C units were brand new so the owner went w/ a new 3 phase panel.
3 Phase Square D panel.
how to make a installation on 3 phase DB board..i'm so sory about unclear explaination from my friend..
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