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Motor Control Center



Power guard MCC is the combination of motor starters, feeder units and interlocking relays in a multi section floor mounted enclosure, used in

  • Power Generation
  • Process Industries

All types of starter can be accommodated within the MCCs as follows:

  • Direct on line (reversing & non-reversing
  • Star/Delta
  • Variable speed drive


  • Starters are protected by fuse or MCB/MCCB
  • Each Individual starter and its outgoing terminals areCompartmentalized. This ensures compliance to requirements of Form 4 separation & safety
  • Bus bars are made of tin plated ETP grade copper with a current density of 1.5A/mm2 (Silver plating available upon request)
  • Fully withdraw able starters up to 160KW
  • Fully shrouded & fault rated plug-in contacts
  • Bus bars are air insulated and if required fitted with fully phase segregated sleeves of heat shrinkable pvc
  • Neutral & earth bus bars are rated at 50% of main bus bar (100% available on request)
  • Plug in contact for power & sliding contact for control
  • Draw out modules are fitted with plug-in connectors. One set connecting to the vertical busbar and the other to the outgoing cables
  • Bus shutter provided to prevent touch with live parts
  • The unit starter contains rotary handle with door interlock (Door can’t be opened when the unit is in ON condition). The interlock can be defeated with the use of tool in case of emergency.


  • Fixed &draw-out modules
  • Vertical and horizontal bus bar
  • Systems are segregated in separateenclosed compartments

Ease of Installation & Maintenance

  • Enough space for outgoing cables in segregated compartments
  • Interchangeable withdrawable modules with easy rack-in & rack-out
  • Cable entry from top or bottom

Conformance to Standards

Power guard MCCs have been designed &built respecting the main international and national standards:

  • EN 60439-1
  • IEC 439-1
  • Ul891
  • NEMA-PB2

Class I Control Centres

These are essentially a mechanical grouping of combination motor control, feeder tap and/or other units arranged in a convenient assembly. These include connections from common horizontal bus to the units. They do not include interwiring or interlocking between units or to remotely mounted devices.

Class II Control Centres

It is same as Class I, but designed to form a complete control system features.