ABB’s MPCBs (MS116 and MS132 series) are reliable and compact motor protection circuit breakers. By combining overload, short-circuit, and phase-loss protection with manual disconnect functionality, they simplify panel design while ensuring high safety and flexibility across industrial applications. Adjustable current ranges, high breaking capacities (up to 100 kA), and modular accessories make them ideal for modern motor control solutions.

Description

ABB’s MPCBs (also called manual motor starters) are compact devices combining overload, short-circuit, phase loss, and manual disconnection protection for motors. These DIN-rail or panel-mount breakers feature a rotary knob for simple ON/OFF/TRIP operation.

Specifications

MS116 Series

  • Models / Ratings:

    • MS116-0.4 (0.4 A nominal) RS Components

    • MS116-6.3 (4.0 – 6.3 A adjustable) – 50 kA breaking capacity at 690 VAC RS ComponentsAICTE

    • MS116-10 (10 A) – 18 kA breaking capacity at 690 V RS Components

    • MS116-16 (16 A) – economic, fuseless, short-circuit proof (50 kA), with lockable knob RS Components

  • Mechanical Dimensions: ~90 mm × 45 mm × 80–90 mm

  • Features: Thermal-magnetic trip, phase-failure sensitivity, IEC 60947-1/2 certified RS ComponentsABB Group

  • Accessories: Auxiliary contacts, signal contacts, under-voltage releases, IP65 shrouds RS Components

MS132 Series

  • Example Model MS132-10 (6.3–10 A) – 100 kA breaking capacity at 400 VAC, adjustable dial, DIN-rail or panel mount, wide voltage rating up to 690 V, high durability Lakeland Engineering Shop

  • Model MS132-1.6 (1–1.6 A) – compact motor starter protecting against overload, short-circuit, and phase loss, 100 kA capacity RS Components

  • Model MS132-32 – adjustable 25–32 A, lockable knob, IP20 rated Vashi Integrated Solutions Limited

Features

  • Comprehensive Motor Protection: Includes overload, short-circuit, phase failure detection, and manual isolation.

  • Rotary Knob Operation: Simple ON/OFF/TRIP with clear switching indication.

  • High Interrupt Capacity: Ranges up to 100 kA depending on model and voltage.

  • Compact Form Factor: Fits into tight panel spaces; variety of accessories extend functionality.

  • Wide Compliance: Meets IEC 60947 standards; available with UL/CSA, ATEX, and other certifications Lakeland Engineering ShopABB Group.

Applications

  • Motor protection in industrial automation panels

  • Compact starter-protector setups in distribution boards

  • Mining, oil & gas, and industrial plants where space and reliability matter

  • Environments requiring high breaking capacity and adjustable protection

Advantages

  • All-in-one motor protection and isolation device

  • High short-circuit performance for safety

  • Easy adjustment and robust manual control

  • Scalable ratings (from <1 A to >30 A) for flexibility

Disadvantages

  • Requires careful selection of current range and trip class

  • Accessories and variants may complicate selection

  • Higher cost compared to simple overload relays

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