Siemens MPCBs (Motor Protection Circuit Breakers) are compact, integrated devices that combine overload, short-circuit, and manual disconnect protection in one. Available in a range of sizes and current capacities across the 3RV and 3VS Sirius product lines, they deliver reliable motor protection with high breaking capacities and modular flexibility, enabling safe and space-efficient control panel designs.

Description

A Siemens MPCB combines the functionality of a motor starter and a protective breaker in one compact unit. It provides combined overload, short-circuit, and manual disconnect protection for electric motors. Designed for easy panel integration, these devices save space and enhance safety while simplifying motor control circuits.
SiemensReddit

Specifications

  • 3RV1011-1AA10

    • Rating: 1.1–1.6 A, Class 10 overload release, 100 kA breaking capacity (size S00)
      electrihub.in

  • 3RV1011-1JA10

  • 3VS1300-1MM00

    • Rating: 10–16 A, 6 kA breaking capacity, includes 1NO + 1NC auxiliary contact
      electrihub.in

  • 3VS1300-0MN00

    • Rating: 20 A, 6 kA breaking capacity, no auxiliary contact
      electrihub.in

  • 3RV2031-4RA10

  • 3RV2042-4MB10

    • Range: 80–100 A, Class 20 release, 100 kA breaking capacity, size S3
      electrihub.in

  • 3VS16001MN00

    • Range: 16–25 A, 6 kA capacity, includes auxiliary contact
      electrihub.in

  • 3RV2332-4RC10

    • Rating: 80 A, 100 kA breaking capacity, size S2
      Moglix

  • 3RV2031-4SB10

    • Rating: 9.5–14 A, 65 kA breaking capacity, size S2
      Moglix

  • 3RV2011-1GA10

    • Rating: 4.5–6.3 A, Class 10 release, 100 kA capacity, size S00
      electrihub.in

  • 3RV2042-4YA10

    • Rating: 75–93 A, S3, stanyard release version
      smeshops.com

Features

  • Integrates thermal-magnetic protection for overload and short-circuit detection

  • Offers manual ON/OFF disconnect for safe isolation

  • Features size scaling (S00 to S3) for current handling flexibility

  • Optional auxiliary contacts for motor status signaling

  • Compact DIN-rail or panel-ready design, ideal for compact panels

  • High breaking capacity (6 kA to 100 kA), scalable with load demands
    electrihub.in+1Moglix

Applications

  • Protecting motors in automation, motors, and pumping systems

  • Ideal for panel-mounted motor protection in industrial distribution boards

  • Replacing bulky starter-plus-overload setups with a single compact device

  • Used in both industrial and plant environments for reliable motor safeguarding
    electrihub.inReddit

Advantages

  • Combines starter and protection in one unit, reducing panel complexity

  • Scalable high breaking capacities

  • Sleek modular design with flexible mounting options

  • Can integrate with contactors and auxiliary elements for sophisticated control

Disadvantages

  • Requires careful selection of current range and class for correct motor protection

  • Higher upfront cost compared to standalone overload relays

  • Need exact coordination with upstream protection and motor load

Leave A Comment