interlock or transfer switch

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Old 11-17-11, 06:23 PM
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interlock or transfer switch

Which is the best way to go when wiring for a generator?
 
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Old 11-17-11, 06:39 PM
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The BEST is probably more personal preference or opinion. My opinion is the BEST way would be a transfer switch, but probably not the most economical way to connect a small generator.
 
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Old 11-18-11, 12:24 AM
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Some jurisdictions will not approve an interlock that is mounted on the panel cover.
 
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Old 11-26-11, 05:33 PM
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A Home Depot employee recently told us that he had a friend who had an interlock for a generator and the house caught on fire and the insurance company wouldn't pay because of the interlock.
 
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Old 11-26-11, 10:19 PM
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That sounds like problems other than an interlock. Could have been improper installation, incorrect wiring, loose and/or corroded connections, other problems with the panelboard or many other things that could contribute to a fire. The insurance company could refuse to pay for something as simple as a DIY installation with no permit or inspection.
 
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Old 11-27-11, 08:11 AM
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Interlock is more flexible, allows you to turn on and off any circuit as it's needed. But with flexibility comes complexity. You may know which circuits should be turned on and off but the wife, kids, next homeowner may not.

The transfer switch is very clear and easy to use. Many of them require only flipping one switch and everything (that you've chosen) switches over.

As long as either in installed per code and with required permits you should be good to go!
 
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