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Circuit Breakers - Mini Circuit Breakers & Supplementary Protectors
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Miniature Circuit Breakers & Supplementary Protectors

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Uncompromising safety and comfort

Miniature circuit breakers (MCBs) ensure electrical safety in multiple applications. They have two different tripping mechanisms, the delayed thermal... More

Ask an Expert

 

Uncompromising safety and comfort

Miniature circuit breakers (MCBs) ensure electrical safety in multiple applications. They have two different tripping mechanisms, the delayed thermal tripping mechanism for overload protection and the magnetic tripping mechanism for short circuit protection.

 

Benefits

  • Extra-wide and complete range of MCBs to cover most applications and markets
  • Compliance with worldwide product standards (IEC, UL, CSA)
  • Space and time-saving thanks to the unique bottom-fixing auxiliary contact
  • Established and certified quality

 

Features

  • Characteristics: B, C, D, K, Z
  • Configurations: 1P, 1P+N, 2P, 3P, 3P+N, 4P
  • Breaking capacities up to 25 kA
  • Rated currents up to 63A
  • Real contact position indication, directly connected to the moving contact

 

On demand webinar archive

Selecting the right Miniature Circuit Breaker (MCB) to increase safety and reduce downtime and cost | December 15, 2021

INCONTROL WEBINAR SERIES


Speaker: Thomas Weinmann
Expertise: All

 

Miniature circuit breakers (MCBs) offer many advantages to the end-user by protecting electrical installations against overloads and short circuits. They come in a wide variety of trip curves, approvals, and technical ratings. In this webinar, an ABB subject matter expert will explain how to select the right MCB for your application to increase safety and reduce downtime and cost.

 

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Miniature Circuit Breakers & Supplementary Protectors
SU 200 Miniature Circuit Breakers
UL1077 MCBs feature two tripping mechanisms, the delayed thermal tripping mechanism and the magnetic tripping mechanism, to ensure electrical safety in multiple applications.
UL489 Miniature Circuit Breakers
UL489 MCBs feature two tripping mechanisms, the delayed thermal tripping mechanism and the magnetic tripping mechanism, to ensure electrical safety in multiple applications.
Q-Line Miniature Circuit Breakers
15 to 100A. THQB and THQC types. Available in bolt-on and Cable-in Cable-out (lug-lug) versions.

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