Siemens ED43B015 is a three-pole molded‑case circuit breaker (MCCB) in the ED frame, rated for 480 V AC three‑phase service. It carries a 15 A current rating (015) and uses a thermal‑magnetic trip unit (B‑type curve) to provide overload and short‑circuit protection. Designed for industrial environments, the ED43B015 is specified for standard 40°C ambient conditions and is described as having high breaking capacity within the ED frame family. It is commonly used to protect motors and other equipment on 480 V three‑phase circuits, and it integrates with Siemens panel configurations that utilize the ED frame.
