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electrical - How to determine if a 20 amp breaker can be upgraded to 30 amp - Home Improvement Stack Exchange
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Square D - HOM220GFIC Homeline Circuit Breaker, 20-Amp, 120/240V, 2-Pole, GFCI, Plug-In Mount - Amazon.com
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How to wire a 20 amp 240 volt circuit breaker | Electrical wiring, Home electrical wiring, Outlet wiring
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