30 Amp Double Pole Breaker Wiring. The rating you should use depends on the appliance. A typical 240 volt 30 amp circuit includes a double pole circuit breaker which has two terminals for the two hot wires.
For sale saint louis mo zinsco 2 pole 30 amp type hqb circuit breaker issue no. When used in home wiring a double pole breaker is used when a 240 volt service is needed for a high draw appliance like a range or dryer. E16248 b1 made in the usa nos location.
The 10 3 cable for this circuit has 3 conductors and no ground.
I admit to doing something similar in mexico using a 240 volt 30 amp 2 pole breaker on a 15 amp circuit only because it was available but i wired in a 15 amp sub panel breaker so pump and wire was protected for amp overload while people were protected for current to ground. E16248 b1 made in the usa nos location. The rating you should use depends on the appliance. Window air conditioners and water heaters typically require 30 amp breakers while ranges and electric heating systems need 50 and even 60 amp breakers.
