The Square D EHB34015 is a three-pole molded‑case circuit breaker rated for 15 amperes at 480Y/277 VAC, designed for use in Square D NEHB panelboards. This bolt‑on unit from the EHB series uses a thermal‑magnetic trip to protect three‑phase circuits from overloads and short circuits, and it fits the EHB‑4 frame family of breakers. It offers an interrupting capacity of 14 kA at 480Y/277 VAC (and up to 65 kA at 240 VAC), making it suitable for commercial and light‑industrial distributions where fault currents can be high.
