What size wire will fit in a 30 amp breaker?
A 30-amp circuit breaker requires a minimum of 10-gauge wire for the conductor, according to the American Wire Standard, or AWS. Using a wire larger than 10-gauge on a 30-amp circuit can pose a significant fire and safety risk. You can always choose to use a lower gauge wire, but never bigger.
What is a double pole 30 amp breaker used for?
IF you’re looking at a two-pole, 30-amp circuit breaker in your home panel (in the U.S.A.), that breaker is usually for an electric clothes dryer, a small air conditioner, hot tub or Jacuzzi heater (smallish), an electric cook-top, or small oven.
How far can you run 240 volt wire?
As an example, for a 120-volt circuit, you can run up to 50 feet of 14 AWG cable without exceeding 3 percent voltage drop….For 240-volt circuits:
| 14 AWG | 100 feet |
|---|---|
| 10 AWG | 128 feet |
| 8 AWG | 152 feet |
| 6 AWG | 188 feet |
How long can I run 12 gauge wire?
Originally Answered: How far can you run 12 gauge wire? The National Electric Code states that a 5\% drop is acceptable at the furthest outlet from the source. So using 12 AWG wire and figuring a 15 amp current draw you get a (one way) distance of 125 feet.
Does it matter which wire goes where on a double pole breaker?
Connect the red wire to the lug on one of the breaker terminals – it doesn’t matter which one – and the black wire to the other terminal. The breaker usually hooks or snaps into the chosen slot. Remember, you need two adjacent slots for a double-pole breaker.
What wire to hook up to a 30 amp double pole?
In the breaker panel it’s hooked up to a 30-amp double pole breaker with #12 wire. Inspector notes that #10 wire should be used for 30-amp circuits so that the wire does not melt before the breaker can do its job in an over-current situation. This makes sense to me, but I’m thrown off by the double-pole configuration.
How many amps does a double-pole breaker use?
Double-pole breakers, on the other hand, are seldom rated for less than 30 amps. Electricity comes to the panel through a pair of hot wires with a voltage of 240 volts between them.
What are the correct AMP wire sizes for service & Breakers?
A Rule of Thumb: What are the correct amp wire sizes for 20, 30, 40, 50 & 60 Amp Service & Breakers? What gauge wire do I need for various different amps? The rule of thumb that techs will usually go by is that for a 30 amp circuit breaker, 10-gauge wire is the right size to go with.
What size wire do I need for a 30 amp welder?
Any circuit fused for 30 amps must use a minimum of 10 ga copper or 8 ga alu. Longer runs may require an upgrade of wire size. In your case, use at least 10 copper for your welder regardless how far it is from the breaker panel. How many amps can 12 gauge wire handle?