Schneider Electric Square D FA34020 Three Phase Circuit Breaker

Schneider Electric Square D FA34020 is a 3-pole molded‑case circuit breaker rated for 480 V AC with a 20 A nominal current, designed for I‑Line mounting in FA series panels. It employs a thermal‑magnetic trip unit for overcurrent protection, offering up to 18 kA interrupting capacity at 480 V AC (25 kA at 240 V AC and 10 kA at 250 V DC) with a magnetic hold current of 275 A and magnetic trip current of 600 A, and it is 80% rated. The device measures approximately 6.4 in tall, 4.5 in wide, and 4.13 in deep; electrical connections accept copper wire from AWG 14 to 4 or aluminum wire from AWG 12 to 4, with phase connections configured as ABC for 3‑phase protection.