ABB ESB43070L Industrial AC Low Voltage Circuit Breaker

ABB ESB43070L is a three-pole molded‑case circuit breaker built for industrial low‑voltage protection. Rated at 70 A and 480 V AC, it serves as a robust protection device for 3‑phase distribution in manufacturing, processing, or other power‑intensive environments. As part of ABB’s ESB family, the ESB43070L delivers quick isolation of fault currents with an 18 kA short‑circuit interruption capacity at 480 V, helping to limit damage and downtime in the event of a fault. The compact form factor and proven ABB reliability make it suitable as a main disconnect or feeder breaker within control panels, switchboards, and motor control centers that operate on 480 V three‑phase power. With three poles, it protects all phases of the supply, ensuring coordinated protection within typical industrial power distributions, and is designed for applications where a 70 A rating at 480 V is appropriate for the load profile.