The Square D QO340EC10 is a 40A triple-pole miniature circuit breaker from the QOE range. It provides overload and short-circuit protection for three-phase circuits in compatible Square D distribution boards.

* Trip characteristic: Type C

* Breaking capacity: 10kA (10,000A)

* Voltage rating: 240/415V AC

* Mounting: Plug-on

If you’re replacing an existing breaker, check the full part number QO340EC10 and confirm compatibility with your distribution board before ordering.