FA34020 Square D Thermal-Magnetic Circuit Breaker 3-Poles, 20A, 480VACCharacteristics Main product or component type Circuit breaker range of product I Line trip unit technology Thermal magnetic breaking capacity code A Complementary Line Rated Current 20 A poles description 3P breaking capacity 18 kA at 480 V AC 25 kA at 240 V AC 10 kA at 250 V DC System Voltage 250 V DC 480 V AC mounting mode I Line electrical connection I Line connection line Lugs load AWG gauge AWG 14 AWG 4 (copper) 1 cable(s) AWG 12 AWG 4