Siemens PTC Thermistor Tripping Unit (3UN2100-0AB4) | IP20, Auto Reset

The Siemens 3UN2100-0AB4 is a PTC thermistor tripping unit designed for motor protection and monitoring applications. It features increased interference suppression, an IP20 protection rating, and an auto-reset function. The unit is monostable, equipped with two LEDs for status indication, and provides one normally open (NO) and one normally closed (NC) contact. It operates on a DC 24V power supply.

This tripping unit is crucial for safeguarding electric motors against overheating caused by overload conditions. Its applications span across various industrial sectors, including manufacturing plants, pump stations, conveyor systems, and any environment where reliable motor protection is paramount.

Stanlo Automation, a veteran-owned supplier of industrial automation surplus, offers the Siemens 3UN2100-0AB4. We understand the importance of having readily available components for critical safety and control systems. Our commitment is to provide quality parts to ensure your operations run efficiently and safely.