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Sure but go for a 200 amp box if you are certain your incoming power supply cable from the street can support it. You should always check with your local electric power company before you upgrade any main supply panel or breakers.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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14y ago
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14y ago

You would have to ensure that the service entrance cable can support 100A. Depending where you are located, you should inquire of your electricity provider if you are equipped for 100A. It may also require a meter change out.

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Q: Can a 125 amp breaker box replace a 100 amp breaker box?
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Related questions

What is the difference between a 100 amp breaker box and a 125 breaker box?

The amperage capacity of the main bus bars and the connection of the main breaker to the bus bars.


Can a 4 amp breaker be used to replace a 35 amp breaker for ac unit?

NO!


How do you turn a 30 amp circuit into a 15 amp cicuit?

Replace the 30 Amp Breaker with a 15 Amp breaker.


What size breaker do you use for a 100 amp sub panel?

A 100-A sub-panel would be fed from a 100-A breaker.


Does anyone make a 100 amp GFCI breaker?

Not that I know of. The largest GFCI breaker I have seen is a 60 amp.


Can you upgrade a 100A main circuit breaker to a higher amp?

I doubt if the 125 amp breaker will fit into a 100 amp box. This is due to the rating of the box only being rated at 100 amps. If this exchange could be made then the service conductors feeding the box must be upgraded to take the 125 amperage that the breaker will allow on the conductor.


Can a 40 amp breaker not a 4 amp breaker be used to replace a 35 amp breaker for ac unit?

Depends on the size of the wire going to the A/C. If the wire is AWG #10 you cannot install a 40 amp breaker. If the wire is AWG #8 you can.


Can a 100 amp main have 2 50 amp breakers?

Yes.Additional InformationBreakers and fuses protect the wires to prevent fire. The 100 Amp breaker in the meter base (main) protects the wire from the meter base to the breaker panel. The 50 Amp breaker in the breaker panel protects the wire from the breaker panel to the outlet. Sometimes the 100 amp main breaker is located in the panel.If you are asking "Can you use two 50 amp breakers for the main breakers with a 100 amp service, then yes you can. The National Electrical Code allows you to use up to 6 breakers as the main overcurrent protection.


Can you hook up 200 amp dervice to a 125 amp service panel?

No. If device draws 200 amps breaker will trip.


Does a double 50 amp breaker make a 100 amp?

No, a double pole 50 amp breaker protects a 240 volt supply at 50 amps. The number that is on the handle of the breaker is the amperage that the breaker will trip at if an overload occurs on the circuit.


What wire size do you need for a 125 amp panel with a 100 amp main breaker?

A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. Even though the panel is rated at a higher amperage it is the main breaker that governs the wire size.


How much should you pay for a 100 amp breaker?

probally about 100 dollars