The circuit breaker size for an electric furnace depends on the furnace's power rating, which is measured in kilowatts (kW). Here's a general guideline for selecting the appropriate circuit breaker size for different furnace power ratings:
1. 60 kW and Below: Use a 60-amp circuit breaker.
2. 61 kW to 100 kW: Use a 70-amp circuit breaker.
3. 101 kW to 120 kW: Use an 80-amp circuit breaker.
4. 121 kW to 150 kW: Use a 100-amp circuit breaker.
5. 151 kW and Above: Use a 125-amp circuit breaker or higher.
Important Considerations:
1. Consult a Qualified Electrician: Before selecting and installing a circuit breaker, it's always best to consult with a qualified electrician who can assess your specific electrical system and make the most appropriate recommendations.
2. Furnace Specifications: Refer to the furnace manufacturer's guidelines or specifications for their specific recommendations on circuit breaker size.
3. Local Electrical Codes: Ensure that the circuit breaker size you choose complies with local electrical codes and regulations.
4. Safety First: Always take electrical work seriously and prioritize safety. If you're not confident in your electrical knowledge or skills, it's best to leave this task to a certified electrician.
