Specifications
General
Product Type: Manual Motor Protector / Manual Motor Starter
Model: MS2X‑6.3
Series: MS (ABB manual motor protection series)
Application: Manual starting/stopping and protection of three‑phase motors and loads
Mounting: DIN‑rail or panel mounting compatible
Connectors: Screw terminals
Electrical Ratings
Rated Operational Current (Ie): 6.3 A
Overload Setting Range: 4 … 6.3 A
Number of Poles: 3 poles (three‑phase)
Rated Operational Voltage: Up to 690 V AC (main circuit), up to 250 V DC (control/protection)
Rated Frequency: 50/60 Hz
Rated Insulation Voltage (Ui): 690 V
Rated Impulse Withstand Voltage (Uimp): ~6 kV
Trip Class: Class 10
Short‑Circuit Breaking Capacity: High breaking capacity per IEC standards
Phase Protection: Overload, short circuit, and phase failure/imbalance protection incorporated
Operational Performance
Manual Switch: ON / OFF / TRIP position indication
Disconnect Function: Built‑in disconnection handle
Phase Loss Sensitivity: Yes
Trip‑Free Mechanism: Yes
Status Indication: Clear indication of ON/OFF/TRIP states
Physical & Mechanical
Housing Protection Class: IP20
Typical Dimensions: Approx. 45 mm width × 90 mm height × 86.8 mm depth
Handle Type: Rotary handle for manual control and reset
Weight: Compact/lightweight design
Environmental
Operating Ambient Temperature: –25 °C to +70 °C
Storage Temperature: –50 °C to +80 °C
Pollution Degree: Suitable for industrial environments
Compliance & Standards
Complies with IEC/EN 60947‑1, IEC/EN 60947‑2, IEC/EN 60947‑4‑1 standards for motor protection devices
Typical Applications
Motor control centers and starters
Industrial machinery motor protection
Pump, compressor, and conveyor motor protection
Automation systems requiring overload and phase‑failure protection
The ABB MS2X‑6.3 is a manual motor protector / manual motor starter designed for protection and manual switching of three‑phase motors and power loads.
It combines overload, short‑circuit, and phase‑failure protection in a compact, DIN‑rail‑mountable unit. The device allows users to manually switch motors on and off and protects against electrical faults such as overloads, short circuits, and loss of phase, helping prevent motor damage and reducing maintenance time. It is suitable for industrial and commercial applications where reliable motor protection and manual control are required.