Square D QO340 Miniature Circuit Breaker
- amperage: 40A
- voltage: 120/240V AC
- poles: 3-Pole
- mounting: Plug-In
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Square D QO 40A 3-Pole Miniature Circuit Breaker, 120/240V AC. The Square D QO340 is a 3-Pole plug-in Miniature Circuit Breaker designed for use in Square D QO load centers and NQ panelboards. This 40A, 120/240V AC thermal-magnetic breaker provides standard overcurrent protection for light commercial or residential applications, maintaining a 10 kAIC interrupting capacity.

