Square D™ QO™ QOB340GFI QO Series Miniature Circuit Breaker, 208Y/120 VAC, 40 A, 10 kA at 208Y/120 VAC Interrupt, 3 Poles - 70839

Square D™ QO™ Miniature Circuit Breaker, Series: QO Series, 208Y/120 VAC, 40 A, 50/60 Hz Frequency, 10 kA at 208Y/120 VAC Interrupt, 3 Pole, Box Lug Connection, 12 to 4 AWG Aluminum/14 to 6 AWG Copper Wire, Bolted-On Mounting, 40 deg C, 2.91 in L x 2.25 in W x 4.12 in H Dimensions