1SDA100240R1

The ABB 1SDA100240R1 is a high-performance low-voltage molded-case circuit breaker from ABB's Tmax XT family, designed for reliable protection, switching, and isolation of electrical distribution circuits. It uses the XT4H 250 frame and has a 250 A rated current, making it suitable for higher-current commercial, industrial, and infrastructure distribution applications.

The breaker incorporates an Ekip Dip LSIG electronic trip unit, providing four major protection functions: L (long-time overload), S (short-time short-circuit), I (instantaneous short-circuit), and G (ground-fault) protection. These functions enable appropriate protection and coordination of downstream electrical equipment and distribution circuits. ABB describes the Ekip Dip LSIG range as providing adjustable overload, selective short-circuit, instantaneous short-circuit, and ground-fault protection.