Technical Specifications
Specification Value
Manufacturer ABB
Model / Part Number MS2X‑2.5
Product Type Manual Motor Starter / Motor Protection Circuit Breaker
Rated Current Setting Range 1.6 – 2.5 A
Protection Functions Overload protection, short‑circuit protection, phase failure sensitivity
Switching Function Manual ON / OFF
Number of Poles 3‑pole (three phase)
Rated Operational Voltage Up to ~690 V AC
Rated Insulation Voltage ~690 V
Rated Frequency 50 / 60 Hz
Degree of Protection (Housing) IP20 (finger‑safe)
Mounting Type DIN‑rail (standard 35 mm)
Trip Mechanism Thermal‑magnetic
Handle / Actuator Type Rotary handle or toggle switch
Adjustable Overload Release Yes (set to motor current)
Disconnect Function Yes (manual disconnect via handle)
Short‑Circuit Breaking Capacity Up to high kA levels typical for manual starters
Terminal Type Screw terminals
Typical Applications Motor protection, manual motor ON/OFF control in industrial circuits
The ABB MS2X‑2.5 is a compact manual motor starter and motor protection circuit breaker designed to provide reliable overload, short‑circuit, and phase‑failure protection for small motors and motor circuits. It features an adjustable current range of 1.6 – 2.5 A, allowing it to be set to the appropriate motor load requirements. The device combines manual ON/OFF switching with protective functions in a single modular unit that can be mounted on DIN rails in motor control panels. It is commonly used in industrial and commercial applications where simple, fuseless motor protection and control is needed.