The MCC (Draw-Out type) is a low-voltage motor control center with withdrawable feeder modules for fast maintenance and high uptime. Each feeder moves between Disconnected, Test, and Service positions while the busbars remain energized and are safely isolated by automatic shutters. The assembly is built to IEC 61439 and components comply with IEC 60947. Typical feeders include DOL, RDOL, Star Delta, VFD, and Soft Starter. The design improves personnel safety through mechanical interlocks, door interlocks, padlocking, and positively guided shutters. Options include metering, power quality monitoring, and SCADA or BMS connectivity over Modbus RTU, Modbus TCP, Profibus, or Profinet. These panels are widely used in refineries, power plants, steel plants, chemical industries, and other continuous process environments where downtime is costly. With modular construction and advanced safety features, MCC panels ensure operational reliability, ease of maintenance, and long-term performance for demanding industrial applications.
MCC (Draw-Out type) Key Feature
- Withdrawable feeder modules with Disconnected, Test, and Service positions
- Mechanical interlocks to prevent racking when the feeder is ON, door interlock, and padlocking provision
- Shuttered busbar chamber contacts and guided engagement
- Form 3b or Form 4b segregation, IP31 to IP54 options as per site conditions
- Coordinated protection using MCCB or fuse switch, contactor, and thermal or electronic overload relays
- Feeder types DOL, RDOL, Star Delta, VFD, and Soft Starter with electrical interlocking
- Copper or aluminum busbars, heat-shrink insulation, and color coding for phases
- Multifunction metering, energy logging, power quality analyzer, and harmonic reporting
- SCADA or BMS ready communications Modbus RTU or TCP, Profibus, or Profinet
- Generous cable space, CT test links, clear wiring layout, and robust earthing continuity across the draw-out mechanism
MCC (Draw-Out type) Process
- Site survey, motor list finalization, and load study
- Control philosophy, I/O list, and network architecture definition
- SLD, GA drawings, device selection, and bill of materials
- Enclosure fabrication, surface finishing, and busbar system assembly
- Draw-out cradle fabrication, racking mechanism, and shutter alignment
- Feeder assembly with protection devices, contactors, VFD or soft starter integration
- Power and control wiring, marshalling, labeling, and point-to-point checks
MCC (Draw-Out type) Industries
- Water and wastewater plants, pump houses, and irrigation systems
- HVAC plants, chilled water systems, cooling towers, and AHUs
- Cement, steel, mining, and bulk material handling
- Oil and gas, petrochemical, and refinery utilities
- Pharmaceuticals, food and beverage, and FMCG packaging lines
- Textiles, paper, and automotive manufacturing
- Power plants, utilities, and balance of plant systems
- Airports, metros, commercial complexes, and large campuses