Joy MCB’s

“B” Series, 3kA Breaking Capacity 240/415V ~, 50Hz

MCB and Isolators Features:

MCBs or Miniature Circuit Breakers are electromechanical devices which protect an electrical circuit from an overcurrent. The overcurrent, in an electrical circuit, may result from short circuit, overload or faulty design. An MCB is a better alternative to a Fuse since it does not require replacement once an overload is detected. Unlike fuse, an MCB can be easily reset and thus offers improved operational safety and greater convenience without incurring large operating cost.

Over heat protection

The MCB’s also provide protection against overheating. It uses a bimetallic strip for the same. The bimetallic strip is made up of two metals with different temperature coefficients. When the current flows through the bimetallic strip, it gets heated. The heating results in bending of the bimetallic strip. The more is the heating, the more is the bending. The bimetallic strip is mechanically connected to the tripping mechanism. When the bimetallic strip bends it forces the metal strip to pull the plastic flap which in turn triggers the tripping mechanism after certain allowed temperature limit for which the bimetallic strip is designed.

• Highest quality material is used without compromises.
• Maximum protection function.
• Extreme tensile load capacity.
• Tested and fulfilling standards and Integrated test opening for voltage measurement.
• Low maintenance, long life expectancy.
• Fast mounting.
• Highest wiring safety.
• Easy to release.