Product Description

Siemens 3RN1012-1CB00

The Siemens 3RN1012-1CB00 is a SIRIUS thermistor motor protection relay designed for reliable monitoring and protection of motors against thermal overload. It operates by evaluating the resistance of a PTC thermistor sensor embedded in the motor windings. This compact unit is ideal for applications where direct current measurement is not feasible or as supplementary protection. It features a wide voltage range, auto/manual/remote reset capabilities, and a test function, ensuring versatile and secure motor operation in various industrial environments.

Technical Specifications:

  • Product Type: Thermistor Motor Protection Relay (SIRIUS 3RN1)

  • Control Supply Voltage: 24 … 240 V AC/DC at 50/60 Hz

  • Output Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed) changeover contact

  • Reset Function: Manual / Auto / Remote Reset

  • Terminal Type: Screw-type terminals

Siemens 3RN1012-1CB00 Description

Siemens 3RN1012-1CB00

Protect your motors with the Siemens 3RN1012-1CB00 SIRIUS thermistor relay. This device offers reliable overheating protection with a 24-240V AC/DC supply, 1 NO + 1 NC contacts, and versatile manual/auto/remote reset options.