Eaton / Cutler-Hammer QC3050H Miniature Circuit Breaker

Yes, but it requires a separate mounting adapter. You will need the Eaton QCDINADAPT accessory, which clips onto the back of the breaker. Because this is a 3 pole breaker, you must use one adapter per pole (three total) to properly secure it to a 35mm DIN rail.

No. The QC series features a cable-in, cable-out design intended for control panels, OEM equipment, and specific industrial enclosures. It does not plug or bolt onto the busbars found in standard residential load centers.

Yes. Eaton acquired the Cutler-Hammer and Westinghouse circuit breaker lines. A QC3050H breaker branded by Eaton is the exact same form, fit, and function as the legacy Cutler-Hammer and Westinghouse versions.

Yes. While commonly used for 240 VAC applications, this thermal magnetic breaker is also fully rated for DC control circuits up to 62.5 VDC. This provides flexibility for mixed voltage industrial panels.

This is a cable-in, cable-out breaker, meaning both the line and load sides use box lug terminals rather than a busbar connection. The lugs accept 14 to 4 AWG copper or aluminum wire.

Yes. Like all Eaton QC breakers from 10A to 100A, the QC3050H carries an HACR rating, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific circuit protection.

The breakers are internally identical, but the QCD version comes factory equipped for 35mm DIN rail mounting. The standard QC3050H is a panel mount breaker that requires the addition of QCDINADAPT brackets to be mounted on a DIN rail.