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Carling Technologies

Circuit Protection


Complete line of circuit protection products that include hydraulic-magnetic circuit breakers, thermal circuit breakers, equipment leakage and ground fault circuit breakers, as well as fuse links with DIN rail mounted fuse holders.

Our products offer high performance and reliable circuit protection in a full complement of sizes, amperage ratings, current or voltage sensing capabilities and agency approvals; to deliver optimal solutions for most design applications.  

Click a specific circuit protection group of products below to learn more, use the eParts catalog with its parametric filters to view and compare standard part numbers that meet your specifications or configure a complete and valid part number with our online Configurit® tool.

Thermal Circuit Breakers

Utilize a bimetallic strip electrically in series with the circuit. Heat generated by the current during an overload temporarily expands the bimetallic strip, tripping the breaker. Choices range from 3 to 60 amps. Voltage ratings at 125/250 VAC, 32 VDC or 125/250 VAC, 50 VDC with AIC's of 1,000 or 2,500 amps.

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Equipment Leakage Interrupter

AC Resididual Current Circuit Breakers with Overcurrent Protection ( RCBO ) combine ground fault protection with the familiar overcurrent tripping characteristics of a normal circuit breaker.  Options from .10 to 50 amps. Voltage ratings of 120 VAC or 120/240 VAC with maximum interrupting capacities ranging from 3,000 to 5,000 amps.

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