Square D FA34070 Circuit Breaker

Square D FA34070 is a 70 A, 3-pole molded-case circuit breaker from Square D’s FA family, designed for I-Line panelboards. It is rated for up to 480 VAC three-phase systems and provides thermal-magnetic protection with an 80% continuous-load rating. The FA34070 offers an interrupting capacity of up to 18 kA at 480 VAC (25 kA at 240 VAC) and accepts aluminum or copper conductors from 14 AWG to 1/0 AWG on both the line and load sides. It features a line-side I-Line connection and ABC-phase arrangement with load-side lugs, making it compatible with FA-series, I-Line enclosures in commercial or light-industrial distributions. This 3-pole breaker is intended to protect feeders and branch circuits up to 70 amps in 480V electrical systems, providing reliable overcurrent protection within Square D’s integrated protective device ecosystem.