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MS116-20

The ABB MS116‑20 is a manual motor starter / motor protection breaker designed to provide manual ON/OFF control and motor protection in industrial and commercial electrical systems. It combines a disconnect switch with overload, short‑circuit, and phase‑failure protection to safeguard motors and loads without the need for external fuses. The device has a trip‑free rotary handle with clear ON/OFF/TRIP indication and adjustable overload current setting to match the motor’s full‑load current within the 16–20 A range. It is suitable for both three‑phase and single‑phase applications and mounts on DIN rails or panel surfaces

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ey Technical Parameters General & Electrical Ratings Product / Model: ABB MS116‑20 Manual Motor Starter Series: MS116 Rated Operational Current (Ie): 16 – 20 A (adjustable) Number of Poles: 3 (three‑pole) Rated Operational Voltage: Up to 690 V AC Rated Short‑Circuit Breaking Capacity (Icu): ~16 kA at 400 V AC Rated Service Breaking Capacity (Ics): ~10 kA at 230/400 V AC Overload Trip Setting Range: 16–20 A (adjustable) Undelayed Short‑Circuit Setting: ~300 A Motor & Power Ratings AC‑3 Rated Operational Power (Pe): ~7.5 kW at 230 V and 400 V AC Typical Motor Ratings: ~5 HP at 220–240 V AC ~10 HP at 440–480 V AC ~15 HP at 500–600 V AC Protection Features Thermal Overload Protection: Yes (adjustable) Phase Failure / Loss Sensitivity: Yes Disconnect Switch Function: Yes Trip‑Free Mechanism: Yes Temperature Compensation: Yes Mechanical & Physical Actuator: Rotary handle with ON/OFF/TRIP positions Width: ~45 mm Height: ~97.8 mm Depth: ~85 mm Weight: ~0.31 kg Degree of Protection: IP20 (housing) Operating Temperature: –25 °C to +70 °C Mounting: DIN‑rail or panel mount compatible Typical Applications Motor control and protection in industrial panels Manual motor switching (start/stop) Overload and short‑circuit protection without external fuses Phase failure sensitive applications