Square D QO330 Miniature Circuit Breaker
- amperage: 30A
- voltage: 240V AC
- poles: 3-Pole
- mounting: Plug-In
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The Square D QO330 is a 3-Pole, 30 A miniature circuit breaker designed for use in QO load centers and NQ panelboards. This unit provides standard thermal-magnetic protection against overloads and short circuits on 120/240V AC systems, featuring a typical 10 kAIC interrupting rating. Its plug-in mounting style allows for quick installation and removal in compatible enclosures, making it suitable for residential and light commercial applications requiring reliable branch circuit protection.

