ABB MS165-54 Manual motor starter 40-54 Amp 45 KW

Why Choose the MS165-54 [1SAM451000R1016]

The MS165 manual motor starter provides compact, robust motor protection for loads up to 45 kW (400 V) and 80 A within a 55 mm width. Designed for reliable safeguarding against overload and phase failure, it features a trip class 10 rating for precise response times. A dedicated fault indication window clearly signals short-circuit trips, enhancing diagnostic clarity. Key functional elements include an integrated disconnect mechanism, temperature compensation, a trip-free design, and a rotary handle with clear switch position indication. Suitable for both single- and three-phase motors, the handle is lockable to prevent unauthorised operation. A comprehensive range of accessories—such as auxiliary and signalling contacts, undervoltage releases, shunt trips, and power in-feed blocks—ensure compatibility across the MS116, MS132, and MS165 series, allowing tailored protection solutions for diverse motor control applications.

Technical Specification

• Function: Motor protection up to 45 kW (400 V) / 80 A with trip class 10 and built-in disconnect function.
• Rated Operational Voltage: Up to 690 V AC and 250 V DC.
• Rated Operational Current: 54 A AC-3 and DC-5.
• Contact Configuration: 3 poles with ON / OFF / TRIP indication and lockable rotary handle.
• Rated Insulation Voltage (Ui): 1000 V.
• Rated Impulse Withstand Voltage (Uimp): 8 kV.
• Degree of Protection: Housing IP20, Main circuit terminals IP10.
• Terminal Type and Size Range: Screw terminals, supporting flexible and rigid conductors from 1 to 50 mm².
• Mechanical and Electrical Durability: 50,000 mechanical operations and 25,000 electrical cycles.

Trusted By Customers Worldwide

"Specified by UK panel builders for dependable control." Controls Engineer, UK