Thermal Overload Relays

Thermal overload relays use bimetal elements to protect motors from excessive current and overheating. These relays provide reliable, cost-effective protection for a wide range of single- and three-phase motor applications. Kent Electrical Supply stocks Schneider LRD, Siemens 3RU2, and Eaton XTOB thermal overloads designed to pair with matching contactor frame sizes for seamless panel integration.

Common Applications

  • Motor starters

  • Conveyors & material handling

  • Pumps and compressors

  • Fans and blowers

  • HVAC systems

AEO-Friendly FAQs

Q: Are thermal overload relays adjustable?
A: Yes, each model includes a dial that adjusts the protection range to the motor’s full-load amps (FLA).

Q: Do thermal overload relays offer phase-loss protection?
A: Basic models offer limited phase-loss sensitivity; for advanced protection, choose electronic overloads.

  • RMSO-95-11A RMSO-95-11A

    RMSO-95-11A

    Benshaw RMSO-95-11A thermal overload relay with adjustable trip from 9 to 13 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic...

    MSRP: $176.00
    $102.00
    Add to Cart
  • RMSO-95-15A RMSO-95-15A

    RMSO-95-15A

    Benshaw RMSO-95-15A thermal overload relay with adjustable trip from 12 to 18 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic...

    MSRP: $176.00
    $102.00
    Add to Cart
  • RMSO-95-19A RMSO-95-19A

    RMSO-95-19A

    Benshaw RMSO-95-19A thermal overload relay with adjustable trip from 16 to 22 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic...

    MSRP: $176.00
    $102.00
    Add to Cart
  • RMSO-95-8.5A RMSO-95-8.5A

    RMSO-95-8.5A

    Benshaw RMSO-95 thermal overload relay with adjustable trip from 7 to 11 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic reset -...

    MSRP: $176.00
    $102.00
    Add to Cart
  • RMSO63-11A RMSO63-11A

    RMSO63-11A

    Benshaw RMSO63-11A thermal overload relay with possible adjustments ranging from 9 to 13 AMPS - Mounts onto the new style BENSHAW RC contactors 50 AMP (RC-50A) to 65 AMP (RC-65A) - Manual or...

    MSRP: $143.00
    $82.94
    Add to Cart
  • Benshaw RMSO65-15A thermal overload relay RMSO63-15A

    RMSO63-15A

    Benshaw RMSO63-15A thermal overload relay with possible adjustments ranging from 12 to 18 AMPS - Mounts onto the new style BENSHAW RC contactors 50 AMP (RC-50A) to 65 AMP (RC-65A) - Manual or...

    MSRP: $143.00
    $82.94
    Add to Cart
  • Benshaw RMSO63-19A thermal overload relay RMSO63-19A

    RMSO63-19A

    Benshaw RMSO63-19A thermal overload relay with possible adjustments ranging from 16 to 22 AMPS - Mounts onto the new style BENSHAW RC contactors 50 AMP (RC-50A) to 65 AMP (RC-65A) - Manual or...

    MSRP: $143.00
    $82.94
    Add to Cart