ask the electrician
Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Can a 125Amp Circuit Breaker be used for 250Amps?

If a 2pole circuit breaker is rated for 125 amps can it be used for 250 amps? The Amperage Rating of a 2Pole 125Amp Circuit Breaker.

© By:

Electrical Wiring Video

Home Electrical Wiring Videos about this Topic and More

Check out my YouTube Channel, and Subscribe!

Learn more with my Home Electrical Video Course:

Basic Home Electrical Wiring by Example

2Pole 125 Amp Circuit Breaker
Electrical Question: If a 2pole circuit breaker is rated for 125 amps can it be used for a total of 250 amps?

This electrical wiring question came from Carl, in Castle Rock, Colorado.

Dave’s Reply:
Thanks for your electrical wiring question Carl.

The Amperage Rating of a 125 Amp Circuit Breaker


Application: Installing a Circuit Breaker in a Main Electric Service Panel.
Skill Level: Advanced – Should be Installed by a Licensed Electrical Contractor. This is Not Recommended for Homeowners or DIY individuals.
Tools Required: Electricians pouch of hand tools and the various power tools necessary for the specific method of electrical service installation.
Estimated Time: Depends on the type of panel, the location, and available access to the project area.
Precaution: Shock Hazard and Arc Flash Hazard! This is an extensive project which should be done by a licensed electrical contractor. The main source of electric utility power should be turned off before working in an electric panel.
Notice: Installing an Electrical Service Panel should be done according to local and national electrical codes with a permit and be inspected.

The Amperage Rating of a 2Pole 125Amp Circuit Breaker

NOTE: The two power conductors of a 2pole 240Volt electrical service are out of phase from each other when the power is produced at the generating station or the power source unit.

Note: Electrical circuits are carefully calculated and designed for the specific application or equipment which will be connected to the circuit.

The Amperage Rating of an Electrical Panel

More about Electrical Wiring

Electrical Circuit Wiring
Circuit Wiring

Electrical Circuit Wiring

This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Home Electrical Panel Circuit Listing

Home Electrical Circuit Breakers

Home Electrical Circuit Breakers

A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.

Guide to Home Electrical Wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

The following may also be helpful for you:

electrical wiring book

A Complete Guide to Home Electrical Wiring

Be sure to get your copy of my BIG Book:
Perfect for Homeowners, Students and Electricians
Home Electrical Wiring - Room by Room
120 Volt Circuits
240 Volt Circuits
Multi-Wired Circuits
Wiring Methods for Installing Home Electrical Circuit Wiring
Electrical Codes for Home Electrical Wiring
....and much more.

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

More articles about Electrical Wiring and Home Electrical Wiring:

« Previous Next »

Why Christmas Lights Make the Outlet Trip Off

What is the Electric Code for Installing a 220volt Receptacle