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What is a D curve circuit breaker?

D Curve Circuit Breakers are specifically designed to support circuits that experience high starting currents. They are ideal for motors, pumps, compressors, and other inductive loads that require a higher magnetic trip threshold.

Are D curve circuit breakers reliable?

With stable switching capability, long service life, and effective protection against electrical faults, the D Curve circuit breakers in this range provide the reliability needed for heavy-duty electrical applications. What are D Curve circuit breakers used for?

What is a k & d curve breaker?

The ideal application is a circuit with a motor load. The K and D curve breakers are both designed for motor applications where ampacity rises quickly and momentarily during “start-up.” Both curves can “ride through” the momentary inrush of current and prevent nuisance tripping while providing protection to the circuit.

What is a D curve MCB?

Unlike standard breakers, D Curve MCBs allow momentary current spikes without tripping unnecessarily. This makes them suitable for commercial and light-industrial environments where equipment may draw several times its normal current during start-up.