This bolt-on circuit breaker features a Visi-Trip indicator and is designed for use with NQ or NQOD panelboards. This listing is for each. Technical Specification Item Bolt On Circuit Breaker Amps 40 Number of Poles 3 Circuit Breaker Type Ground Fault Circuit Interrupter AC Voltage Rating 240VAC DC Voltage Rating Not Rated For Use With Square D NQ Panelboards Series QOB Terminal Connection Box Lug Max. AIR Rating 10 kA Frame Size MCB Min. Wire Size 14 AWG (Cu), 12 AWG (Al) Max. Wire Size 6 AWG (Cu), 4 AWG (Al) Length 4.12 Width 2.25 Depth 2.91 Standards UL Listed, CSA Certified