Siemens E43B045 U Three-Phase AC Contactor 3-Pole

Siemens ED43B045L is a three-pole molded case circuit breaker (MCCB) rated for 45 A at 480 VAC, designed to protect and interrupt current in three-phase power distribution within commercial and industrial panelboards. The LD lug variant includes load-side lug terminals for secure termination and delivers an 18 kA short-circuit interrupting capacity at 480 V, providing robust protection for feeders and branch circuits against faults. As part of Siemens' ED series, this compact 3-pole device supports straightforward wiring and is a common choice in protection schemes where precise overcurrent protection is required in industrial installations. The lug-equipped ED43B045L is specifically suited for applications needing reliable, code-compliant circuit protection with a streamlined form factor that fits standard electrical enclosures. Designed for use in distribution panels and other 3-phase protection applications, the ED43B045L offers a compact footprint, straightforward wiring, and a robust protection solution to help maintain safe, reliable electrical systems.