Question about Siemens /ite Bq Circuit Breaker Bq3b090 3p 90amp
What are you wiring?
Does it seem realistic that you need 40 Amp capacity?
40 Amp circuit breaker is usually 240 Volt and it goes to heat pump, double oven, or some heavy equipment. 40 amp breaker uses 8 gauge wire.
You can figure a circuit with the formula V x A = Watt
If your VA is 7500 Watts and voltage is 240, then Amps is 31.25
Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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