Siemens Industrial Controls 3RU2126-4BB0 Overload Relay 14-20A

The Siemens Industrial Controls 3RU2126-4BB0 Thermal Overload Relay protects motors from overcurrent and phase failure within a 14-20 amp current range. the system works based on the bimetallic strip. when the current is high, the strip gets heated and bends and tripping the circuit that supplies power to the motor. A type of relay is commonly used in HVAC systems, such as fans, blowers, and compressors, to protect the motor from overheating and therefore increase its durability. These include protection of the motor, time saving, and an increase in the reliability of the system.