Can I use a 30 amp breaker on 12 gauge wire?
Maximum breaker 30 amps. Bingo 30 amp breaker with 12 AWG conductor, you could use 10 AWG but the NEC would not require it. There are times when feeding motor loads that the breakers are rated much higher than the conductors.
What size wire is good for 25 amps?
Wire Size & Amp Ratings
| Copper | ||
|---|---|---|
| Wire Gauge Size | 60°C (140°F) NM-B, UF-B | 75°C (167°F) THW, THWN, SE, USE, XHHW |
| 14 | 15 | 20 |
| 12 | 20 | 25 |
| 10 | 30 | 35 |
How many amps can 12 gauge wire handle?
20 amps
“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”
What’s the biggest breaker you can put on 12 2 wire?
20 amp
Maximum Breaker Size is 30 amps. You can use a 20 amp circuit breaker with 12/2 Romex as 12/2 wire is rated for 20 amps. Always remember THE BREAKER IS THERE TO PROTECT THE WIRE NOT THE APPLIANCE !!! You can always oversize the wire , if using a 20 DPST breaker you can use 10/2 if needed…
Is there such thing as a 25 amp breaker?
25 amp breakers are available, but are generaly a “non-prefered” size, that is to say that few electricians would have them on the truck so they commonly use a 30 amp.
Does Square D make a 25 amp breaker?
Product description The Square D by Schneider Electric QO 25 Amp Two-Pole Circuit Breaker is intended for overload and short-circuit protection of your electrical system. The ANSI-certified and UL-listed unit is rated for 120/240 VAC and 10,000 AIR.
Is there a 25 amp circuit breaker?
Can I replace a 25 amp breaker with a 30 amp breaker?
Yes if the max over current protective device is 25 amp and you have a 30 it is ok to down size. it is always ok to reduce the breaker size if the wiring is legal or compliant with the larger breaker.
Can I go from a 20 amp breaker to a 25 amp breaker?
If it is 20 amps or less, the #12 wire is fine. Then check the Maximum Overcurrent Protection (MOCP) or Max Fuse Size. If it says 25 amps or higher you can change the breaker to 25 amps.
Can I use a 25 amp breaker in place of a 20 amp breaker?
The #12 wire is fine if it is less than 20 Amps. You can change the breaker if it says 25 Amp or higher.