Power Transmission Products Power Transmission Products

  • Electrical Overload Protectors

Shock Relay

With the simple wiring system, this current-detecting overload protection device can swiftly detect motor

Shock Relay

overcurrent and output a signal causing an emergency stop to prevent your equipment from damage.
It also provides easy settings and stable operation.

Specification change

  • Notice regarding Changes to SB Series Shock Relay Case Specifications. (2018.04.03)
  • One model can now handle both 24-240V AC/DC power supply voltage. (2017.04.01)

Product Lineup

Product Types / Features

  • SB Series

    SB Series

    SB Series

    Easier to use by combining self-holding and automatic reset types.
    *This is the successor model of the SS/SA Series Shock Relay.
    *CCC certification

    RoHS compliant

  • Shock Relay SC Series

    Shock Relay SC Series

    Shock Relay SC Series

    Communication functions (RS485), 4 to 20 mA output, Panel-mounted type with separate display also available, CE Marking

    RoHS compliant

  • Shock Relay ED Series

    Shock Relay ED Series

    Shock Relay ED Series

    Economical type with digital display, Compact design with the built-in CT, Compatible with inverters, Choice between self-holding and automatic reset, CE marking, cUL and CCC certification

  • Shock Relay 50 Series

    Shock Relay 50 Series

    Shock Relay 50 Series

    Automatic reset type, Separate CT

  • Shock Relay 150 Series

    Shock Relay 150 Series

    Shock Relay 150 Series

    Analog meter attached, Self-holding type, Separate CT

  • Shock Relay SS Series

    Shock Relay SS Series

    Shock Relay SS Series

    Discontinued. Successor models: SB Series Shock Relay

  • Shock Relay SU Series

    Shock Relay SU Series

    Shock Relay SU Series

    Discontinued. Successor models: SB Series Shock Relay

  • Shock Relay SU Series

    Shock Relay SU Series

    Shock Relay SU Series

    Discontinued. Successor models: SB Series Shock Relay

Applied Motor Capacity

Model Motor Power Source Motor Capacity
Analog AC200/220V 50/60Hz 0.06kW to 90kW
AC400/440V 50/60Hz 0.2kW to 132kW
Model Motor Power Source Motor Capacity
Digital AC200/220V 50/60Hz 0.1kW to 75kW
AC400/440V 50/60Hz 0.1kW to 132kW

Operation Time Chart

Operation Time Chart

View/Download Data

Catalog/Instruction Manual

Product Inquiries

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