Schneider Electric ECB14030G3 U Circuit Breaker

Schneider Electric ECB14030G3 U is a PowerLink G3 single-pole molded-case circuit breaker rated for 30 A at 277 VAC (ECB‑G3 devices are commonly configured for 480Y/277 VAC systems), designed for bolt-on installation in compatible PowerLink panelboards. It provides thermal-magnetic protection with a permanently preset overload trip and magnetic short-circuit trip in each pole, ensuring fast fault clearance on 277 VAC circuits. As part of the ECB‑G3 family, the ECB14030G3 U is engineered for use in Schneider Electric’s PowerLink enclosure ecosystem, enabling straightforward replacement or expansion of circuit protection in panels that support ECB‑G3 devices and offering a bolt-on mounting option to match common installation practices. Typical applications include branch circuits in commercial and light industrial distribution that run on 277 VAC, such as lighting feeders and auxiliary circuits, where a compact, reliable 30 A protection solution is required.