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Moulded Case Circuit Breakers

MCCB (Moulded Case Circuit brekers )

MCCB stands for Molded Case Circuit Breaker. It is another type of electrical protection device which is used when load current exceeds the limit of a miniature circuit breaker. The MCCB provides protection against overload, short circuit faults and is also used for switching the circuits. It can be used for higher current rating and fault level even in domestic applications. The wide current ratings and high breaking capacity in MCCB find their use in industrial applications. MCCB can be used for protection of capacitor bank, generator protection and main electric feeder distribution. It offers adequate protection whenever an application requires discrimination, adjustable overload setting or earth fault protection..

  • CONFORMS TO IS/IEC 60947-2&IEC 60947-2 & 3
  • CURRENT RATING FROM 16A TO 1250A
  • 10kA To 100kA Braking capacity
  • Suitable for isolation
  • Thermal magnetic and Microprocessor based MCCB
  • Available in 3 Pole/4 Pole
  • 100% rated neutral pole
  • Adjustable Over Load &  Short Circuit  with selectable time delay
  • Instantaneous protection with fine settings
  • Inbuilt ground fault protection from 10% – 100% of In
  • Adjustable neutral overload protection available : 50% to 150% of Ir.
  • Adjustable current imbalance protection available: (30%~70%) of Ir
  • Advanced Current, Voltage, Frequency & Power based protections
  • Other Protections like Maximum Demand, Phase Sequence, THD etc.
  • Comprehensive Current, Power, Energy, PF, MD, THD metering
  • Provision of Thermal Memory : ON/OFF
  • Variable trip class at 1.5 Ir,6 Ir & 7.2 Ir
  • Front LED indication of Over Load, short circuit & earth fault
  • Panel mounted display available for advanced protections & metering
  • Communication using RS485 through MODBUS protocol
  • Manual, Rotary or Motorised versions available
  • View last trip information
  • LCD: Indication of measurement and information
  • Special purpose trip unit for motor & generator protection
  • For 3 phase 4 wire system, External neutral CTs available for 3P MCCBs
  • Wide Range of snap fit Internal and External Accessories