ABB MS116-25 1SAM250000R1014 MS116 Manual Motor Starter 20-25A

The ABB MS116-25 (article 1SAM250000R1014) is a compact 45 mm manual motor starter, also referred to as a motor protection circuit breaker or manual motor protector, designed to switch motors on and off and protect them against short-circuits, overload, and phase failures without requiring a fuse. With a rated operational current of 25.0 A and a rated service short-circuit breaking capacity of 10 kA at 400 VAC, this device covers three-phase and single-phase motor branch circuits up to 25 A.

Technical specifications:

• Series: MS116-25
• ABB article number: 1SAM250000R1014
• EAN: 4013614405662
• Rated operational current (Ie): 20-25 A
• Rated service short-circuit breaking capacity (Ics): 10 kA at 400 VAC
• Trip class: 10A
• Width: 45 mm
• Phase compatibility: three-phase and single-phase

Features and benefits:

• Fuse-free protection - guards against short-circuits, overload, and phase failures without a separate fuse, simplifying panel design.
• Built-in disconnect function - acts as an isolator so no additional switch disconnector is needed in the circuit.
• Temperature compensation - trip thresholds adjust to ambient temperature, preventing nuisance trips or missed faults across varying installation environments.
• Trip-free mechanism - the device cannot be held closed during a fault, ensuring the motor is de-energised regardless of handle position.
• Rotary handle with clear switch position indication - ON/OFF status is immediately visible, reducing the risk of operating errors.

Applications:

• Starting and protecting pumps, fans, and compressors in industrial and commercial installations.
• Motor branch circuit protection in machine tool and conveyor drive control panels.
• Direct-on-line motor starting in three-phase distribution boards.
• Single-phase motor protection in HVAC and process equipment up to 25 A.

Also known as: ABB MS116-25, MS116-25 1SAM250000R1014, manual motor protector, motor protection circuit breaker, ABB 1SAM250000R1014.