Schneider Electric Square D EHB34030 Circuit Breaker

Schneider Electric Square D EHB34030 is a 3-pole, 30-amp molded‑case circuit breaker from the EHB series, designed for 480Y/277V AC systems and bolt-on installation in NF‑style panelboards; this thermal‑magnetic device provides overcurrent protection for three‑phase feeders with a 14 kA interrupting rating at 277V and a 40°C ambient rating, making it suitable for commercial electrical installations that run on 277/480V service. The EHB34030 features bolt‑on mounting and the compact E‑Frame construction, delivering reliable protection for three‑phase circuits up to 30A in environments where Square D NF panelboards or equivalent enclosures are used; typical applications include protecting lighting and power distribution feeders in commercial facilities that require a 3P, 30A breaker at 480Y/277V. As part of the Square D EHB family, this breaker combines a thermal‑magnetic trip with a rugged molded‑case design to help ensure selective coordination and dependable performance in demanding electrical distributions.