Over 400 used circuit breakers in stock, 20A to 3200A across Square D, Siemens, GE, Eaton and Cutler Hammer. Bolt-on and plug-in, single-pole through three-pole, 240V and 480V ratings, plus large-frame draw-out units. Selling surplus breakers from a facility or panel upgrade? We buy in quantity with same-day quotes and handle pickup.