Industrial HFB2100 Molded Case Circuit Breaker

The Westinghouse HFB2100 Molded Case Circuit Breaker is a 100 Amp, 2‑pole unit rated for 600 VAC and compatible with 50/60 Hz systems, designed for industrial electrical distribution and branch‑circuit protection. As part of the HFB series within the MARK 75 AB DE‑ION family, this thermal‑magnetic breaker delivers long‑time and instantaneous trip functions and an interrupt rating of 25 kA at 480 VAC. It is intended for bolt‑on or panel‑mount installation in switchboards, motor control centers (MCCs), industrial control panels, switchgear, and other equipment requiring reliable protection for connected power systems. Typical applications include motor control systems, HVAC infrastructure, conveyors, and automated processing machinery. Common replacements include Eaton HFB2100, Siemens HFD2100, and Square D LA2100.