2 pole FGCI Breaker

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  #1  
Old 01-29-07, 04:49 PM
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Cool 2 pole FGCI Breaker

I want to purchase and install a 2 pole GFCI breaker (20 amps) to my in-ground swimming pool. I have installed several single pole 120 volts with no problems. My question... my pump has 2 hot wires (120V) and 1 insulated green wire going to it; no nuetral is required for my pump, is these 3 wires all that is needed for a 2 pole installation?
 

Last edited by waterman; 01-29-07 at 04:52 PM. Reason: typo
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Old 01-29-07, 05:06 PM
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The white from the breaker goes to the neutral bar in the panel.
You do NOT connect anything to the "load" neutral terminal on the GFI breaker.
 
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Old 01-29-07, 05:16 PM
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Will I get GFCI protection without the white neutral wire?
 
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Old 01-29-07, 05:17 PM
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Yes you will.
 
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Old 01-29-07, 05:20 PM
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even though I don't understand how that wroks. Thanks for the info.
 
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Old 01-29-07, 05:52 PM
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A 120 volt GFCI breaker or receptacle looks for an imbalance of current between the hot and the neutral wire.

A 240 volt GFCI breaker also looks for a current imbalance. However, with a 240 volt breaker it looks for a current imbalance on all three wires. It knows that the current on the neutral needs to be the difference between the current on each hot wire. With no neutral to carry current, the current on each hot leg MUST be equal or the GFCI breaker will trip.
 
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