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    cezarsummer's Avatar
    cezarsummer Posts: 1, Reputation: 1
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    #1

    Aug 1, 2012, 10:57 PM
    Is it okay to use 150 amp bolt-on breaker to # 2/7 t.w wire
    Is it okay to use 150 amp bolt-on breaker to # 2/7 t.w wire
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Aug 2, 2012, 02:37 AM
    I will assume #2 copper wire with TW insulation.

    No, 150 amp CB is too large an amp rating to protect #2 Cu TW wire.
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