Can I Connect a Surge Protector to an Existing Breaker

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Can I Connect a Surge Protector to an Existing Breaker?

Created by: Glen Zhu | Updated Date: November 13^th, 2024

Yes, you can connect the surge protector to the existing circuit breaker. Typically, the surge protective device needs to be installed after the circuit breaker, specifically after the dedicated circuit breaker.

When using a surge protective device, three types of circuit breakers are usually involved:

1. Main Circuit Breaker: The main circuit breaker controls all electrical equipment in the main circuit. When inspection and maintenance of the entire circuit are needed, the power can be disconnected by turning off the main circuit breaker.

2. Dedicated Circuit Breaker: The dedicated circuit breaker controls the operation of the SPD. If a fault or short circuit occurs in the SPD, the dedicated circuit breaker will trip, ensuring that the load equipment continues to operate normally without being affected. During surge protector inspection and maintenance, only the dedicated circuit breaker needs to be turned off, without affecting the operation of other load equipment.

3. Load Circuit Breaker: The load circuit breaker controls the operation of the load equipment. When maintenance or repair is required for a specific load device, the designated load circuit breaker can be turned off to disconnect the power, ensuring the other equipment continues to operate normally.

The SPD is connected in series with the main circuit breaker.

The SPD is connected in series with the dedicated circuit breaker.

The SPD is connected in parallel with the load circuit breaker.

To learn more about between surge protective device and circuit breaker, please visit our webpage: https://lsp.global/surge-protection-circuit-breaker/

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Reliability in surge protection!

LSP’s reliable surge protection devices (SPDs) are designed to meet the protection needs of installations against lightning and surges. Contact our Experts!

Since 2010, LSP has been dedicated to designing and manufacturing surge protective devices protecting installations from transient overvoltages that result from switching events and lightning strikes.

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