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Circuit Protection

Industry leading UL489, UL508 & UL1077 Listed Circuit Breakers, Manual Motor Protectors, Contactors and Overload Relays for 0.2 to 63A single and three phase applications and ½ - 600 HP motors.  Auxiliary contact blocks, busbars, power distribution systems and accessories are available for most applications.
Circuit Protection
Industrial Circuit Protection
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Control Engineering
Customers Say:
  • "Quick, thorough and fairly priced. Great follow through with orders”

    L. McKinney Rocan Corporation

  • “MSRC is a true keeper! A pleasure to do business with. Extensive product inventory and expertise. Orders are correct every time and are always delivered when promised. Their topnotch customer service is yet another reason why I keep coming back again and again.”

    G. Mattola Advanced Micro Computer Specialists

  • “Our experience has been extremely satisfying. You gave us the confidence that you would not only be our vendor but a trusted partner”

    R. Raucci United Parcel Service(UPS)

Tier1Automation is an ISO 9001:2008 registered, online division of MSRC Co., a trusted electronic and electrical distributor to fortune 500 companies for more than 20 years.

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