ABB 3 Pole Replacement MS116-4.0 Manual Motor Starter

ABB MS116-4.0 Manual Motor Starter is a compact, 3-pole device that combines manual motor switching with built-in overload and short‑circuit protection. Rated Ie 4 A and 45 mm wide, it suits small to medium motors—approximately 1.5 kW at 690 V—across 50/60 Hz systems, with a short-circuit breaking capacity Ics of 50 kA at 400 VAC. The unit includes a built-in disconnect, a trip‑free mechanism, and temperature compensation, plus a rotary handle that clearly indicates ON/OFF. It is suitable for both single‑phase and three‑phase applications, and ABB offers a range of accessories (auxiliary and signaling contacts, undervoltage releases, shunt trips, and locking devices) to tailor protection and control. The enclosure is rated IP20 for indoor panel use, and typical mounting dimensions are about 90 mm high, 45 mm wide, and 85.6 mm deep. With an operating life up to 100,000 cycles, the MS116-4.0 is designed for reliable, fuse-free motor protection in control cabinets and motor control centers where compact size and straightforward manual control are essential. This model is part of the MS116 family and is commonly referenced as a 3-pole, 4 A manual motor starter for 690 V systems.