What is the difference between MCB and MCCB
MCB - Miniature Circuit Breaker
Singe pole mcb
Two pole MCB
3 Pole MCB
4 pole MCB
Characteristics.
- Rated current not more than 100 A.
- Trip characteristics normally not adjustable.
- Thermal or thermal-magnetic operation.
MCCB - Moulded Case Circuit Breaker
Characteristics.
- Rated current up to 1000 A.
- Trip characteristics often fully adjustable including configurable trip thresholds and delays.
- Usually electronically controlled—some models are microprocessor controlled.
- Often used for main power distribution in large industrial plant, where the breakers are arranged in draw-out enclosures for ease of maintenance.
MCB is Thermal protective device and MCCB is thermal and magnetic protective device.
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