Square D HJA36020 Molded Case Circuit Breaker

Square D PowerPact HJA36020 is a three‑pole, 20‑amp molded‑case circuit breaker from Schneider Electric’s PowerPact H family, designed for 600 V AC systems with a 250 V DC rating and I‑Line plug‑in mounting for fast installation in commercial and industrial panels. This 3P, 20A device uses a thermal‑magnetic trip to provide reliable overcurrent protection for feeders and motors, with an 80% continuous‑load rating for long‑term duty. It carries interrupting capacities of 100 kA at 240 VAC, 65 kA at 480 VAC, and 25 kA at 600 VAC, enabling flexible protection across a wide voltage range, and it lists phase connections as ABC. The HJA36020 is part of the PowerPact H‑Frame lineup (PowerPact H, J, L family) and is referenced by multiple distributors under the MFG part number HJA36020, reflecting its role as a standard 3P, 20A PowerPact molded‑case breaker for industrial electrical distribution. Its I-Line plug‑in mounting and ABC phase connections are designed for Schneider Electric panelboards that support PowerPact H‑Frame devices.