Square D Circuit Breaker Accessories

132 products

These accessories enhance the functionality of Square D miniature and molded case circuit breakers. Circuit breakers protect electrical circuits from damage caused by current overloads or short circuits.

Square D Circuit Breaker Lugs & Lug Kits

These lugs and lug kits support wiring for Square D circuit breakers that do not have lugs. They add a mechanical connector that wires can attach to. They also replace lost or damaged lugs.


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Square D Circuit Breaker Locks, Padlocks & Interlocks

These locks, padlocks, and interlocks secure Square D circuit breaker handles. They limit access and accidental tripping of the breaker.


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Square D Circuit Breaker Mounting Accessories

These accessories adapt Square D circuit breakers to different mounting styles.


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Square D Circuit Breaker Auxiliary Contacts & Switches

Auxiliary contacts and switches monitor Square D circuit breakers and provide a signal to outside equipment when the breaker trips. In the event of an overcurrent or short circuit, these contacts and switches keep workers and equipment safe by sounding an alarm, initiating a shutdown, or starting up a backup power source.


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Square D Circuit Breaker Handles & Operators

Square D circuit breaker handles and operators allow a panel to be deenergized before it's opened to protect personnel. They can also be used to operate equipment that's housed in a sealed enclosure. These handles and operators mount directly to the face of the breaker or on a panelboard door and enable personnel to disconnect or reinstate power without touching the breaker itself.


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Square D Circuit Breaker Shunt Trips

Shunt trips remotely switch Square D circuit breakers off to prevent electrical damage in the event of an emergency, like a fire or storm.


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Square D Circuit Breaker Undervoltage Release

Undervoltage releases automatically trigger a power trip in Square D circuit breakers when the voltage falls to between 70% and 35% of the solenoid coil rating. They prevent damage from undervoltages, which can cause data loss or harm electrical systems.


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Square D Circuit Breaker Handle Ties

Handle ties connect Square D circuit breakers to convert two adjacent single pole breakers into a double pole circuit breaker or to tie two circuit breaker handles together. In the event of an overcurrent or short circuit, both breakers will trip to prevent damage to the system.


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Square D Circuit Breaker Cable Operating Mechanisms

Cable operating mechanisms operate two Square D PowerPact B, D, H, J, and L circuit breakers at once. They're typically used in tall, deep enclosures where placement flexibility is needed. These mechanisms connect to a required handle operator.


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Square D Circuit Breaker Ancillary Accessories

These ancillary accessories support Square D circuit breakers and facilitate installation and wiring.


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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.

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