Square D FA34040 – 40A 3 Pole Molded Case Circuit Breaker Best Price

Built to handle demanding electrical distribution needs, this 40A molded case breaker provides robust thermal-magnetic protection. The FA34040 mounts into Square D I-Line panelboards and switchboards, offering a secure plug-on connection. It features a 25 kAIC rating at 240VAC and 18 kAIC at 480VAC, complete with fixed long-time and instantaneous trip functions. While part of a legacy F-Frame lineup, it remains a dependable solution, eventually succeeded by the PowerPacT HDA36040.