Technical Parameters
Electrical Ratings
Rated Operational Current (Ie): 0.8 … 1.0 A adjustable
Number of Poles: 3
Rated Operational Voltage: up to 690 V AC
Rated Insulation Voltage (Ui): 690 V
Frequency: 50 / 60 Hz
Trip Class: Class 10 (thermal overload protection category)
Service Short‑Circuit Breaking Capacity: approx. 50 kA @ 400 V AC
Protection & Functional Features
Motor Protection:
Thermal overload protection with adjustable setting
Magnetic instantaneous trip for short‑circuit response
Phase loss protection
Trip‑Free Mechanism: Yes (contacts do not weld under fault)
Temperature Compensation: Yes (improves accuracy over ambient range)
Switch Function: Manual ON/OFF with clear position indication
Padlockable OFF Position: Yes, for maintenance safety
Mechanical & Installation
Actuation: Rotary handle
Terminal Type: Screw terminals
Mounting: Panel or DIN‑rail compatible based on accessory/adapter
Degree of Protection: IP20
Pollution Degree: 3
Connecting Capacity (main circuit):
Typical flexible/rigid conductors appropriate to ~1 A class (e.g., up to ~4–6 mm² depending on terminal)
Tightening Torque: Typical motor starter torque range (e.g., ~2–4 N·m)
Physical / Environmental
Approx. Width: ~45 mm
Approx. Height: ~97–100 mm
Approx. Depth: ~80–90 mm
Net Weight: ~0.20–0.30 kg
Operating Ambient Temperature: approx. –25 °C to +60 °C
Storage Temperature: broader industrial range
The ABB MS116‑1.0 is a compact and reliable manual motor starter designed for both manual switching and overload protection of small three‑phase motors and related loads. It combines a manual ON/OFF disconnect switch with thermal‑magnetic motor protection in one integrated device. The starter features an adjustable current setting range to match the motor’s rated current and provides built‑in phase‑loss detection, temperature compensation, and a trip‑free mechanism for dependable protection against overloads and short circuits. Clear ON/OFF/TRIP indication and a rotary handle allow intuitive operation and maintenance safety.