Square D HDL36020 Three Phase Circuit Breaker

HDL36020 is a PowerPact H-series three-pole molded-case circuit breaker rated at 20 A for use in up to 600 V AC systems. It provides thermal-magnetic overcurrent protection for three-phase feeders and equipment, with interrupting capacities listed as 25 kA at 240 V, 18 kA at 480 V, and 14 kA at 600 V, aligning with common PowerPact H specifications. The unit offers line and load lug connections and accepts substantial conductor sizes, including up to 14-3/0 AWG aluminum or copper, making it suitable for industrial distribution panels and machinery feeds. As part of Schneider Electric’s PowerPact H family, HDL36020 is designed for reliability in unit-mount or chassis-mount installations across commercial and industrial equipment, delivering a compact, rugged solution for protecting 3-phase circuits at 600 VAC. The product is a fixed, 3-pole molded-case breaker with a 20 A rating and 600 VAC operation, and it is specified with an 80% continuous-load rating, reflecting its suitability for continuous service within its rated current.