Cutler-Hammer ED2100LD12W03U Molded Case Circuit Breaker

Cutler-Hammer ED2100LD12W03U is a 2-pole molded case circuit breaker rated for 100 A at 240 V, designed to provide overcurrent protection for electrical circuits in distribution panels and equipment. It carries a 10 kA interrupting rating, allowing it to interrupt fault currents up to 10,000 amperes and help prevent damage to conductors, insulation, and connected devices. With a 2P design, it disconnects both conductors in 240 V circuits, ensuring simultaneous isolation of power during a fault. This unit is part of the Cutler-Hammer family—an Eaton brand—and uses a molded housing that integrates the trip mechanism and insulation for compact mounting in standard panelboard or equipment enclosures. The ED2100LD12W03U model designation identifies this specific configuration within the ED2100 series, combining a 100 A rating, 240 V operation, two poles, and a 10 kA interrupting capacity in a single protective device. Molded case breakers like this are used in electrical distribution to automatically trip and interrupt current when overloads or short circuits occur, protecting wiring, equipment, and personnel.