Square D QOU125 Miniature Circuit Breaker

Yes, QOU miniature circuit breakers feature built-in slots in the molded case that allow them to mount directly to standard 35mm DIN rails without requiring additional adapter brackets.

While both provide thermal magnetic protection, QO breakers are plug-on units designed specifically for QO load centers and NQ panelboards. QOU breakers, like the QOU125, are unit-mount breakers designed for surface, flush, or DIN rail mounting in OEM equipment and control panels.

Yes, the QOU125 is designed for versatile unit mounting. It features reversible line and load lugs that accommodate convenient flush or surface mount wiring in control panels and enclosures.

Yes, the QOU125 is UL Listed for use on DC electrical systems with a maximum rating of 48VDC and a 5kA interrupting capacity.

Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires dedicated overcurrent protection.

Yes, the breaker comes equipped with slotted box lugs on both the line and load sides, accepting 14 to 2 AWG copper or aluminum wire.

As a 1-pole QOU breaker, it requires 0.75 inches of width for installation in control panels or enclosures.

Yes, the handle position provides a clear visual indication of the breaker status, showing whether the circuit is ON, OFF, or TRIPPED.