Eaton Holec Motor Control Centers

Eaton’s Freedom 2100 Motor Control Centers (MCCs) are intelligent MCCs that offer the safest and most effective method for grouping motor control and associated control, as well as industrial communications and distribution equipment. The Freedom 2100 MCCs are designed for safety, reliability and quality and are built to NEMA ICS 18 standards offering a safe, intelligent and versatile MCC.

Eaton’s motor control centers (MCCs) provide a convenient method for grouping motor control, as well as associated distribution equipment. MCCs may be applied on electrical systems up to 600 V, 50 or 60 Hz, having available fault currents of up to 100,000 A rms. Enclosure designs include NEMAT 1 Gasketed as well as NEMA 2, 12, 3R and 3R walk-in. All controllers are assembled with Eaton components of proven safety, quality and reliability. All components are wired in accordance with NECT and ULT standards. An ongoing temperature and short-circuit design test program, as required by UL 845, ensures a quality product that meets the latest safety codes. Freedom DC motor control centers are available up to 250 Vdc, having available fault currents up to 22,000 A rms. A comprehensive range of communications options are also available, including EtherNet/IP, ModbusT TCP, Modbus RTU, PROFIBUS and DeviceNetE.

MCCs provide the best method for grouping motor control as well as associated distribution equipment. Eaton’s MCCs are specially designed to operate machinery, industrial processes and commercial building systems. The MCC enclosure consists of a strong and rigid self-supporting steel channel framework assembled into standardized vertical sections and bolted together to form a complete shipping section of up to 80.00 inches (2032.0 mm) maximum, four structures each. Structures include horizontal and vertical bus, insulation and isolation barriers, horizontal and vertical isolated wiring troughs, cable entrance areas, and space for inserting starter and control equipment.

All control units, removable or fixed mounted, are assembled with Eaton components of proven safety, quality and reliability. Specifically designed bus stabs, insertion guides, handle mechanisms and safety interlocks are added to form a standardized plug-in unit that meets the highest safety standards.

Market Segments
Eaton’s MCCs have been designed to meet the specific needs of several industries including:
■ Automotive
■ Chemical
■ Commercial construction
■ Food and beverage
■ Industrial construction
■ Mining, metals and minerals
■ Oil and gas (upstream, midstream and downstream)
■ Pulp and paper
■ Utility
■ Water treatment and wastewater Standards and Certifications
■ UL 845 Listed
■ NEC section 430 Part H
■ Seismic compliance to IBC 2009 and CBC 2010
■ ABS certified for non-propulsion loads
■ CSA 22.2 No. 0.22-11 Arc-Resistant
■ Tested to C37.20.7 guidelines

■ 600 Vac / 250 Vdc
■ Maximum 3200 A horizontal bus
■ Maximum 1200 A vertical bus
■ 42 kA, 65 kA and 100 kA short circuit withstand
■ Operating temperature 0 ºC (32 ºF) to 40 ºC (104 ºF)
■ Storage temperature –40 ºC (–40 ºF) to 65 ºC (149 ºF)

Key MCC Features
■ Molded case and air circuit breaker mains
■ Bimetallic and solid-state overloads
■ Adjustable frequency drives (6-pulse) up to 400 hp VT
■ IEEE 519 clean power drives (18-pulse) up to 500 hp VT
■ Reduced voltage soft starts (RVSS) up to 1000 A
■ Panelboards/transformers/ATS
■ Metering/SPDs/feeder breakers
■ MCPs/fused switch disconnects
■ 16- and 21-inch deep enclosures
■ 21-inch deep front-and-rear (common bus) design
■ 1A to 2C wiring capability
■ 120 V / 240 V or 480 V coil options as well as 24 Vdc
■ Drawout NEMA Size 1 to 5
■ Fixed NEMA 6 and higher


HORSEPOWER: up to 700 Hp

MAIN BUS RATING: up to 3200 A

Core features

  • UL 845-listed equipment constructed to NEMA® ICS 18 standards

  • Enhanced safety features available with Flashgard units and arc-resistant construction

  • Provide seamless integration to all major industrial protocols

  • Feature the latest in smart overloads, soft starters and variable frequency drives

  • Available with NEMA® Type 1 gasketed, Type 12, Type 2 and Type 3R enclosures

  • Standard structure depths of 16 inches or 21 inches

  • 21-inch depth, industry's smallest front-to-back design with single vertical and horizontal bus

  • Full-length horizontal and vertical wireways

  • Silver- or tin-plated horizontal bus capable of 3200 A and fully-rated vertical bus up to 1200 A

  • Standard bus withstand rating of 65 kA, with withstand rating of 100 kA available

  • Draw-out units up to 400 A with NEMA Size 5 motor starters

  • Unit-mounted device panels equipped with swing-open design for unit access

  • Exclusive modular pull-apart terminal blocks accessible from the vertical wireway

Arc flash safety for MCCs

Today’s motor control center designs offer a variety of techniques to help prevent dangerous arc flash events that can cause serious or fatal injuries. An optimal design layers protection for workers and assets, including the Arcflash Reduction Maintenance System™ feature, arc-resistant construction and FlashGard racking units to improve safety.

The power of intelligent MCCs

Eaton’s smart MCCs include comprehensive communications and active energy control solutions that seamlessly integrate into all major industrial protocols. Ideal for managing and maintaining today’s large and complex systems where uptime is critical, Freedom MCCs provide industrial-grade intelligence for superior motor protection.

Versatile MCC configurations

Eaton understands that every facility has different control and power distribution requirements; that’s why Freedom MCCs are available in a variety of configurations. From maximizing footprint with a space-saving design to encompassing facility distribution and motor loads in one cohesive enclosure, Eaton’s MCCs can meet your needs.

Gain a reliable, high-quality solution from aftermarket MCCs

Eaton’s MCC aftermarket solutions help extend the life of existing motor control centers without the hassle, cost or extensive downtime associated with modifying existing structures and rewiring. Plugging directly into existing MCCs, aftermarket solutions offer an expected life cycle of 20+ years and are certified to the same UL standards as new MCCs.