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Yes, a sub panel does need a main breaker for proper electrical safety and functionality. The main breaker serves as a disconnect switch to shut off power to the sub panel in case of emergencies or maintenance. It also helps prevent overloading the electrical system and protects against electrical hazards.

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6mo ago

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Related Questions

What happens when the breaker is loose?

When a breaker is loose, it may not be able to properly connect and disconnect the electrical circuit, which can lead to overheating, sparking, or even a potential electrical fire. It is important to tighten loose breakers to ensure the safety and functionality of the electrical system.


What is a breaker and what is it used for?

An electrical breaker is a safety device used to open a circuit that has an electrical fault on it.


What safety measures should be taken to prevent breaker arcing in electrical systems?

To prevent breaker arcing in electrical systems, safety measures such as regular maintenance, proper installation, using high-quality components, and ensuring proper grounding are essential. Additionally, implementing arc fault circuit interrupters (AFCIs) and conducting regular inspections can help reduce the risk of breaker arcing.


What are the safety precautions to consider when working with a circuit breaker?

When working with a circuit breaker, it is important to follow safety precautions such as wearing insulated gloves, ensuring the power is turned off before working on the breaker, and using proper tools to avoid electrical shocks.


What is the compatibility of a 50 amp Zinsco breaker with my electrical panel?

The compatibility of a 50 amp Zinsco breaker with your electrical panel depends on the specific model and specifications of your panel. It is recommended to consult with a licensed electrician to ensure proper compatibility and safety.


What wire gauge should be used for a 60 amp breaker?

For a 60 amp breaker, a wire gauge of at least 6 AWG should be used to ensure proper electrical safety and performance.


Why does the breaker keep tripping in one room?

The breaker may keep tripping in one room due to an overloaded circuit, a short circuit, or a ground fault. These issues can cause the breaker to trip as a safety measure to prevent electrical fires. It is important to have a qualified electrician inspect and address the problem to ensure safety and proper functioning of the electrical system.


What type of wire should be used for a 60 amp breaker?

For a 60 amp breaker, a wire with a gauge size of at least 6 AWG should be used to ensure proper electrical safety and performance.


Can a wall socket be wired directly to the breaker or a wall switch?

Yes, a wall socket can be wired directly to a breaker, allowing it to be powered independently. However, wiring a socket directly to a wall switch is also possible, allowing the switch to control the power to the outlet. It's important to follow electrical codes and safety guidelines when making such connections to ensure proper functionality and safety. If unsure, consulting a licensed electrician is recommended.


What should I do if I find a loose breaker switch in my electrical panel?

If you find a loose breaker switch in your electrical panel, it is important to turn off the main power to the panel and tighten the loose breaker switch securely. If you are unsure or uncomfortable doing this yourself, it is recommended to contact a licensed electrician for assistance to ensure safety and proper functioning of your electrical system.


What electrical safety devices can be reset and used again?

An electrical safety device that can be reset and used again fits the description of an electrical circuit breaker.


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.

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