1SDA100158R1 ABB Ekip Hi-Touch LSI Electronic Trip Unit, 40A, 4-Pole

The ABB 1SDA100158R1 is a premium, state-of-the-art Ekip Hi-Touch LSI solid-state electronic trip unit designed exclusively for the Tmax XT2 series of molded case circuit breakers (MCCB). This high-performance four-pole accessory delivers advanced LSI protection functions—covering adjustable long-time overload (L), short-time selective short circuit (S), and instantaneous short circuit (I) parameters. Far more than a baseline protection mechanism, the Hi-Touch variant functions as an integrated multimeter and high-accuracy power network analyzer, providing 1% certified measurement accuracy on power and energy. Featuring an intuitive built-in LCD display panel and self-supplied internal current sensors, it offers top-tier power distribution monitoring and system control for high-reliability professional automation networks.