Schneider Electric LH4N125RT7 Three Phase Soft Starter

Schneider Electric's Telemecanique LH4N125RT7 is a 22 A solid-state, three‑phase soft starter (LH4N1 series) for 440–480 VAC systems, delivering controlled starting and stopping of asynchronous motors with a voltage ramp. It handles motors up to 15 HP (about 11 kW) and operates on 50/60 Hz power, featuring an integrated bypass and a panel‑mount enclosure for straightforward installation in control panels. By softly ramping voltage, it minimizes inrush current and mechanical shock during acceleration and deceleration, making it suitable for pumps, conveyors, compressors, fans, HVAC systems, and other industrial equipment where smooth motor start is essential. Designed for OEM direct replacement and retrofit projects within three‑phase motor control systems, it offers an adjustable starting time from 1 to 5 seconds to tailor ramp profiles to the load.