Motor Control Center

ApplicationPower guard MCC is the combination of motor starters, feeder units and interlocking relays in a multi section floor mounted enclosure, used inPower GenerationProcess IndustriesAll types of starter can be accommodated within the MCCs as follows:Direct on line (reversing & non-reversingStar/DeltaVariable speed driveConstructionStarters are protected by fuse or MCB/MCCBEach Individual starter and its outgoing terminals areCompartmentalized. This ensures compliance to requirements of Form 4 separation & safetyBus 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 160KWFully shrouded & fault rated plug-in contactsBus bars are air insulated and if required fitted with fully phase segregated sleeves of heat shrinkable pvcNeutral & earth bus bars are rated at 50% of main bus bar (100% available on request)Plug in contact for power & sliding contact for controlDraw out modules are fitted with plug-in connectors. One set connecting to the vertical busbar and the other to the outgoing cablesBus shutter provided to prevent touch with live partsThe 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.OptionsFixed &draw-out modulesVertical and horizontal bus barSystems are segregated in separateenclosed compartmentsEase Of Installation & MaintenanceEnough space for outgoing cables in segregated compartmentsInterchangeable withdrawable modules with easy rack-in & rack-outCable entry from top or bottomConformance To StandardsPower guard MCCs have been designed &built respecting the main international and national standards:EN 60439-1IEC 439-1Ul891NEMA-PB2Class I Control CentresThese 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 CentresIt is same as Class I, but designed to form a complete control system features.