Siemens
Siemens Thermistor Tripping Unit 1NO/1NC 220-240VAC 50/60Hz 3UN2100-0AN7
Siemens Thermistor Tripping Unit 1NO/1NC 220–240VAC – 3UN2100-0AN7
The Siemens 3UN2100-0AN7 Thermistor Tripping Unit is a high-performance protection device designed to monitor temperature variations in motor circuits, helping prevent overheating and equipment failure. Operating at 220–240VAC with a 50/60Hz frequency, this unit integrates seamlessly into a wide range of industrial and commercial electrical systems.
Featuring one Normally Open (NO) and one Normally Closed (NC) contact, it offers flexible control options within motor protection schemes. Utilizing PTC thermistor technology, the unit delivers precise thermal monitoring and triggers a trip response in case of excessive temperatures, enhancing motor lifespan and operational safety.
Built with Siemens’ renowned engineering quality, the 3UN2100-0AN7 is robust and dependable, ideal for use in harsh industrial environments. The automatic reset function simplifies recovery after normal operating conditions resume. Though discontinued by the manufacturer, this model remains a trusted solution in legacy systems requiring consistent temperature-based motor protection.
Key Features:
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PTC Thermistor Tripping Unit
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1NO/1NC Contact Configuration
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Voltage: 220–240VAC
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Frequency: 50/60Hz
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Auto Reset Function
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Discontinued by Manufacturer