Schneider Electric Square D EDB14020 Circuit Breaker

The Schneider Electric Square D EDB14020 is a 20-amp, 277-volt single-pole miniature circuit breaker from the EDB (E‑Frame) family. Built for bolt-on installation in Square D panels that use E‑Frame breakers, it provides thermal-magnetic protection for branch circuits and key loads. The device accepts 12–14 AWG conductors and delivers an 18 kA interrupting capacity at standard distribution voltages (18 kAIC at 240/480 VAC), making it suitable for lighting and general-purpose circuits in commercial environments that operate near 277 VAC. Rated at 20 A and 1‑pole, this breaker is designed for 1‑phase service and provides reliable short-circuit and overload protection with a fast trip response. Part of Square D's molded case breakers lineup, the EDB14020 is a common replacement in systems that specify E‑Frame 1P protection. Typical applications include branch circuits for lighting, receptacles, or small equipment where 277 VAC supply is used.