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What is the recommended wire size for a 100 amp breaker?

Updated: 2/26/2025

Dereck Kozey ∙

Lvl 10

∙ 1d ago

Best Answer

The recommended wire size for a 100 amp breaker is typically 2-gauge copper wire or 1/0-gauge aluminum wire.

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∙ 1d ago

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Related questions

What size wire should be used for a 100 amp breaker?

For a 100 amp breaker, a wire size of 2 AWG (American Wire Gauge) should be used to ensure proper electrical safety and performance.

What is the recommended copper wire size for a 100 amp service?

The recommended copper wire size for a 100 amp service is typically 3 AWG (American Wire Gauge).

What is the recommended wire size for a 100 amp aluminum service?

The recommended wire size for a 100 amp aluminum service is typically 2 AWG (American Wire Gauge).

Is a 12 gauge wire on 20 amp breaker safe for a sub panel?

No, a 12 gauge wire is rated for 20 amps, which matches the breaker size. It is not recommended to use a wire that matches the breaker size as it can result in overheating and potentially cause a fire hazard. Consider using a thicker wire, such as 10 gauge, for the 20 amp breaker to ensure safety for the sub panel.

What is the recommended wire size for a 100 amp circuit using THHN wire?

The recommended wire size for a 100 amp circuit using THHN wire is typically 3 AWG (American Wire Gauge).

What is the recommended gauge size for a 100 amp aluminum wire installation?

The recommended gauge size for a 100 amp aluminum wire installation is typically 2 AWG (American Wire Gauge).

What is the recommended ground wire size for a 100 amp sub panel installation?

The recommended ground wire size for a 100 amp sub panel installation is typically 8 copper wire.

What is the recommended wire size for a 100 amp aluminum electrical circuit?

The recommended wire size for a 100 amp aluminum electrical circuit is typically 2 AWG (American Wire Gauge).

What is the recommended gauge size for a 100 amp cable?

The recommended gauge size for a 100 amp cable is typically 3 AWG (American Wire Gauge) for copper wire.

What type of wire, specifically aluminum wire, is recommended for a 100 amp service?

For a 100 amp service, it is recommended to use aluminum wire that is at least 2 AWG in size.

What is the recommended wire size for a 100 amp electrical circuit?

The recommended wire size for a 100 amp electrical circuit is typically 3 AWG copper or 1/0 AWG aluminum.

What is the recommended wire size for aluminum conductors to handle a 100 amp electrical load?

The recommended wire size for aluminum conductors to handle a 100 amp electrical load is typically 2 AWG (American Wire Gauge).

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