Connector Manufacturing Company

Hamilton,  OH 
United States
  • Booth: 2020

We offer broad range solutions for OEM and Utility markets.

Connector Manufacturing Company (CMC) has a history of industry renowned customer and technical service, along with a reputation of engineering excellence, quality, and reliability.

FACTS: Acquired by Hubbell in 2013,Serving the utility and OEM markets, CMC has three primary sites that total more than 285,000 square feet of production, warehouse, and office facilities, 400-plus employees, and  over 125 BURNDY Factory Direct Sales Reps, A certified third party test facility aquipped to perform UL, ANSI, and CSA test requirements, Complete in-house engineering & design.

Brands: Barfield Manufacturing, ROTO-LUG

 Press Releases

  • (Jun 14, 2018)

    CMC® OEM Products

    Solutions to Support Original Equipment Manufacturers

    Continuous Innovation for the OEM Market

    For more than 70 years, Connector Manufacturing Company (CMC) has been dedicated to engineering, designing and manufacturing quality products for the OEM industry. Thanks to this long history, CMC® has a solid understanding of industry challenges and provides the flexibility and expertise to provide solutions that:

    Improve reliability

    Increase efficiency

    Reduce acquisition and operational costs

    Tap our knowledge and you’ll benefit from our wide-reaching capabilities, such as:

    Complete in-house engineering and design

    A certified UL third-party test facility equipped to perform UL, ANSI and CSA test requirements

    Customer service that consistently provides knowledgeable answers to our distributors and end-users

    As a result, CMC® provides competitively priced connector and neutral bar solutions that minimize installation time while ensuring the highest level of quality and safety.

    Surpassing Industry Standards

    Headquartered in Ohio, CMC® is home to one of the industry’s most comprehensive third-party testing facilities in the United States. The CMC® lab is qualified under the ISO Guide 17025-2008 certification requirements for lab accreditation. We have teams of lab technicians at multiple lab facilities to perform tests that include:

    Electrical (current cycle, fault current, static heat)

    Mechanical (sustained load, pullout, secureness, fatigue)

    Environmental (freeze/thaw, salt spray)

    Metallurgical (grain structure, heat treatment, failure analysis)


    At our core, CMC® is a connector manufacturer, offering both mechanical and compression designs. Our products are marketed to utility companies, original equipment manufacturers and commercial/industrial accounts. They are used in a variety of 600V applications that include meter sockets, load centers, LV switchgear, electrical panel boards, circuit breakers, motor controls, inverters and combiner boxes. Our connectors are known industry-wide for:

    Compact design

    Range-taking capability


    Relatively easy installation

    Certification with Underwriters Laboratories and the Canadian Standards Association requirements for listing

    These factors—together with our dedication to the highest quality ISO certified standards available and an unsurpassed service level—deliver maximum reliability.

    CMC® is also involved in the standard development process with UL, CSA, ANSI, CANENA, NFPA, ESFI and NEMA Committees—this is designed to ensure that CMC products safely meet the challenges and requirements out in the field.

    Our OEM Product Lines Include:

    Box-Style Lugs

    Aluminum & copper designs (UL recognized from #12-1000 kcmil)

    Tin plated aluminum connectors are dual rated for CU & AL

    Designed for 600V power termination, and equipment grounding and bonding

    Multiple designs: square, rectangular, anti-rotational and multi-conductor

    Mechanical L-Shaped Lugs

    Aluminum & copper designs (UL recognized from #12-1000 kcmil)

    Tin plated connectors are dual rated for CU & AL

    Designed for 600V power termination, and equipment grounding and bonding

    Patented I-Beam design with heat dissipation ridges on tongues

    Anti-rotational options in single & multiple conductor designs

    “Keyhole” multi-conductor options in single- and multiconductor configurations

    Neutral/Ground Bars

    Aluminum & copper designs (UL recognized from #12-300 kcmil)

    Tin plated connectors are dual rated for CU & AL

    Copper bars are for copper only

    Ground bars connect directly to metallic panel

    Neutral bars must maintain at least 1/2” clearance off metallic surface (usually mounted on a base)

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Sunday, Sept. 15 - Tuesday, Sept. 17, 2019

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Pennsylvania Convention Center
1101 Arch St.
Philadelphia PA 19107

Move-in / Move-out & Shipping Info

Future Dates
2019: Las Vegas Sept. 14-17
2020: Chicago Oct. 3-6
2021: Nashville Oct. 9-12
2022: Austin Oct. 15 - 18
2023: Philadelphia Sept. 29 - Oct. 2
2024: San Diego Sept.28 - Oct. 1