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##### Asked by: Maddalena Krawczyk

home and garden home appliances# Can I replace a 40 amp breaker with a 50 amp?

**amp circuit**. 40 and 50

**amp breaker/circuit**are basically interchangable. You can use either for a 50

**amp receptacle**.

Also question is, what size breaker do I need for a 40 amp circuit?

**Range** Wire **Size** Depends on **Breaker Size** As a general rule of thumb, you should **size** the wire according to the following rules: 10 AWG for up to 30 **amps**, 8 AWG for **40** to 50 **amps** and 6 AWF for more than 50 **amps**.

**240**VAC service should be capable of 50 amps per leg, for a total ampacity of 100 amps combined.

Besides, can I use a 40 amp breaker for a stove?

our **stove**/oven has **40 amp breaker** & rated for 12.5 KW . yes, if you add or need/required to **use** a 50 **amp** you **will** need to **use** at least 6 gauge wire. if you didn't the 8 gauge wire **could** get hot & the 50 **amp breaker** may not trip or click off because it is rated higher. always match the wire to the **breaker**.

Different question and the answer is "It depends". But in general the answer is "No, **do** not go and put a 30 **amp breaker** in place of a **20 amp breaker** because the wiring is most likely 'sized' for the **20 amp** load and -may- overheat if a 30 **amp** load is used with wiring sized for a **20 amp** load."