ABB S5N300TDDAS8 Circuit Breaker

ABB S5N300TDDAS8 is a 300 A, 3‑pole molded‑case circuit breaker from ABB’s SACE S5 family, rated for 600 V (AC/DC) with a 22 kA short‑circuit interrupting capacity. The device is specified as part of the SACE S5N/S5 line and is configured with built‑in shunt trip and auxiliary contact, enabling remote tripping and local status signaling in protection schemes. Designed for protection of feeders and motor‑control center circuits in low‑voltage power distribution, it provides overcurrent protection for loads up to 300 A while offering the fast, coordinated response typical of ABB protection solutions. The S5N300TDDAS8 variant combines standard overcurrent protection with the convenience of a shunt‑trip function and an auxiliary contact, making it suitable for panel configurations where a dedicated trip signal and feedback contact are required. This model is commonly installed in industrial control panels, machine enclosures, and distribution boards where compact form factor and reliable protection are essential, delivering the necessary interrupting capability of 22 kA at 600 V and compatibility with equipment designed for SACE S5N protection schemes.