The circuit feeding the 240volt items needs to be derived from two different "phases" or "hotlegs". If they come from the same "phase" you will not get 240volts, you will get zero volts. Further, if you are taking about a circuit breaker panel, at the point where you are taking the two phases, they are suppossed to be next to each other using a common trip 2 pole breaker.
50 amp breaker wired with AWG # 6 wire.
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It is not the number of bulbs that you worry about. It is the wire size that is your concern. If the circuit is wired with AWG 12/2 wire then use a 20 amp breaker. If it is wired with a AWG 14/2 wire then use a 15 amp breaker. You are protecting the wiring with the correct size breaker.
A 30 amp breaker wired with AWG #10 wire.
30 amp wired with AWG # 10 wire.
For a circuit breaker to protect anything, it must be wired in series with whatever it is protecting.
Is the receptacle a 110 or a 220 outlet? If it's a 110, it needs to be a 220. Are there other appliances, lights, etc. wired on the same outlet? If so, you may have to re-wire so that no other appliances, lights, etc. are wired into the same breaker. Usually the larger appliances such as air conditioners, central heat systems are wired to a separate breaker or fuse.
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The way to detect if a shunt trip breaker is malfunctioning is to manually trip the breaker. The shunt is usually wired through a auxiliary relay. Make sure that before you trip the breaker that the load can be shut off without taking a production line etc. off line. Trip the auxiliary relay using a test jumper to activate the relays coil. The breaker's handle will move to mid throw and the load will disconnect from the supply power. If the breaker trips then it is working properly. If the breaker does not trip trouble shoot the circuitry that is used to trip the breaker. Usual problem is an open circuit.
A dedicated 20 Amp circuit wired with 12/2 wiring an a 20 amp breaker.
No, add new breaker,find a junction box and split the series, or add a box and split the load. You only need to do this if the breaker is tripping from overload. 12ga wire should have a 20amp breaker not a 15amp. If I understand your question,wired in parallel, this would be one hot connected to two breakers, first off two breakers is 220v not 120v , and 220v has two hot wires. Never connect two breakers together on one line.
A breaker panel wiring diagram shows the layout and connections of electrical circuits in a breaker panel. It helps electricians understand how the circuits are wired and connected to the breakers, ensuring proper installation and troubleshooting.