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Thomas & Betts MS132-20 16 to 20 Amp 3-Pole Manual Motor Starter

Manufacturer: ABB Inc. | Catalog # MS132-20 | Crawford Part # 417005

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The MS132-20 manual motor starter (also known as motor protection circuit breaker or manual motor protector) is a compact 45 mm width device with a rated operational current of Ie = 20.0 A. This device is used to manually switch on and off motors and to protect them reliably and without the need for a fuse from short-circuits, overload and phase failures. The manual motor starter offers a rated service short-circuit breaking capacity Ics = 100 kA at 400 VAC and trip class 10. Further features are the build-in disconnect function, temperature compensation, trip-free mechanism and a rotary handle with a clear switch position indication. The manual motor starter is suitable for three- and single-phase applications. The handle is lockable to protect against unauthorized changes. Auxiliary contacts, signaling contacts, undervoltage releases, shunt trips, 3-phase bus bars, power in-feed blocks are available as accessory.

Technical Information

For Used to Manually Switch On and Off Motors and to Protect Them Reliably and Without the Need For a Fuse From Short-circuits, Overload and Phase Failures
Blade Dimensions
45 mm W x 86.6 mm D x 97.8 mm H
Conductor Size
1/2 x 1 - 2.5 mm, 1/2 x 2.5 - 6 mm (Solid), 1/2 x 1 - 6 mm, 1/2 x 2.5 - 6 mm (Stranded), 1/2 x 0.75 - 6 mm (Flexible With Ferrule), 1/2 x 0.75 - 6 mm (Flexible With Ferrule Insulated), 1/2 x 1 - 2.5 mm, 1/2 x 2.5 - 6 mm (Flexible Without Ferrule)
Control Voltage
690 VAC, 250 VDC
Mounting Type
DIN Rail
Number of Poles
3 Pole
EN 60947-1IEC,EN 60947-2IEC,IEC,EN 60947-4-1UL 60947-1UL 60947-4-1
Temperature Rating
-25 to 60 C
Terminal Type
Screw Terminals
Trip Class
Class 10
Motor starter controls

Manufacturer Information

Family Brand Name
Thomas & Betts

General Product Info

Environmental Conditions
-50 to 80 C Storage Temperature
Product UPC