ABB Manual Motor Starter MS165-42 30-42A 45kA

Why Choose the MS165-42 [1SAM451000R1015]

The MS165 series offers a compact motor protection solution for motors up to 45 kW (400 V) and 80 A, housed within a 55 mm width. Designed to provide dependable protection against overload and phase failure, these devices feature a trip class 10 rating. A distinct fault indication window clearly signals short-circuit trips, enhancing diagnostic clarity. Additional technical features include an integrated disconnect function, temperature compensation, a trip-free mechanism, and a rotary handle with clear switch position indication. Suitable for both single- and three-phase applications, the manual motor starter—also referred to as a motor protection circuit breaker—includes a lockable handle to prevent unauthorized operation. A range of accessories such as auxiliary and signaling contacts, undervoltage releases, shunt trips, and power in-feed blocks are compatible across the MS116, MS132, and MS165 product lines, ensuring flexibility and ease of integration.

Technical Specification

• Function: Manual motor starter with built-in motor protection, overload and phase failure detection, trip class 10.
• Rated Operational Voltage: Up to 690 V AC and 250 V DC.
• Rated Operational Current: 42 A.
• Number of Poles: 3 poles.
• 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 Capacity: Screw terminals, flexible and solid conductors from 1 to 35 mm² (flexible) and up to 50 mm² (stranded).
• Mechanical Durability: 50,000 operations.
• Mounting: DIN rail TH35-7.5 / TH35-15 per IEC 60715.

Trusted By Customers Worldwide

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