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Introducing MCBs
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Miniature Circuit Breaker (MCB)
MCB - A circuit breaker is an
automatically-operated electrical switch designed
to protect an electrical circuit from damage
caused by overload or short circuit. Unlike a
fuse, which operates once and then has to be
replaced, a circuit breaker can be reset (either
manually or automatically) to resume normal
operation. Circuit breakers are made in varying
sizes, from small devices that protect an
individual household appliance up to large
switchgear designed to protect high voltage
circuits feeding an entire city.
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Characteristics of MCB
-Rated current not more than 100 A. -Trip
characteristics normally not adjustable.
-Thermal or thermal-magnetic operation.
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Types of MCB
MCBs are classified according to
tripping over range of fault current as
follows

• Type B MCB
• Type C MCB
• Type D MCB

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Brands

• Cona
• Anchor
• Maxcel Plast

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Different Types of MCBs
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