Siemens Industrial Controls 3RU2126-4CB0 Overload Relay Screw S0 17-22A

The Siemens Industrial Controls 3RU2126-4CB0 Thermal Overload Relay is used to protect the motors from overcurrent and phase failure. Being a size S0 system with the current range of 17-22 Amp and screw terminals, it is designed to be mounted on compatible contactors. This relay works through the sensing of high current, which heats the bimetallic strips and opens the circuit and thus protecting the motor. Although mainly for motor protection in various industries, it can be used in HVAC systems with electric motors for fans or compressors. It also eliminates motor damage, provide the operation of the vehicle, and minimizes time off.