Schneider Electric FHL36020BU Circuit Breaker

Schneider Electric's Square D FHL36020BU is a 20-amp, three-pole molded-case circuit breaker rated for 600 volts, part of the FHL family in the PowerPact lineup. It provides thermal-magnetic protection with long-time and instantaneous trip function and uses line and load lug terminals for straightforward installation in 3‑phase panels. With an 18 kA interrupting capacity, the FHL36020BU protects 3‑phase circuits in industrial or commercial 600V systems. Schneider Electric discontinued this reference on October 20, 2023, directing customers to the PowerPacT B replacement: PowerPacT B, 20A, 3-pole, 600Y/347VAC, 18 kA, with lugs and thermal-magnetic trip. This MCCB remains a compact protection device suitable for feeders and motor circuits that require a 600V, 3-pole solution.