The Square D FA34040 is a 480V 40A 3-Pole FA/LA Molded Case Circuit Breaker with Thermal interruption type and Type D tripping characteristics. This circuit breaker is designed for instantaneous break time and operates at a maximum amperage of 40A with a current rating of 31-40A. It is suitable for AC/DC current type and features a bolt-on mounting style with I-line capability. With its reliable brand reputation and specific model number, the Square D FA34040 is a dependable choice for electrical circuit protection.