Westinghouse HFB3050L Molded Case Circuit Breaker

The Westinghouse HFB3050L is a 50 Amp, 3-pole molded case circuit breaker with bolt-on mounting from the HFB frame series, designed for industrial power distribution and motor control systems. It is rated for 600 VAC and 50/60 Hz three-phase operation, delivering thermal-magnetic protection for overloads and short circuits in branch circuits. This unit is commonly used in MCCs, industrial control panels, OEM machinery, pump systems, and processing equipment where reliable protection and rugged construction are required. Its molded case design and 3-pole configuration support industrial power distribution panels and motor control centers that demand dependable protection for connected loads. Common replacements include Eaton HFD3050, Cutler-Hammer HFD3050, and Westinghouse HFB3050, reflecting its compatibility with both legacy and modern industrial layouts. The breaker is gray in color and is intended for industrial applications requiring overload and short circuit protection for 3-phase circuits.