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Siemens Thermistor Motor Protection Relay Compact Evaluation Unit 17.5 mm 3RN2010-1CW30 is a reliable and compact motor protection device designed for precise temperature monitoring and safeguarding of electric motors in industrial automation systems. Manufactured by Siemens under the SIRIUS 3RN2 series, this evaluation unit processes signals from PTC thermistors or bimetallic sensors embedded in motor windings to detect overheating conditions at an early stage. It ensures safe motor operation, prevents thermal damage, and improves overall system reliability. It is widely used in motor control centers (MCC), pumps, conveyors, compressors, and industrial machinery where continuous thermal protection and dependable performance are required. Its compact 17.5 mm housing allows easy DIN rail installation in space-constrained control panels.
Key Features:
Compact thermistor motor protection relay for precise temperature monitoring
Compatible with PTC thermistors and bimetallic temperature sensors
Reliable over-temperature detection for enhanced motor safety
Wide control supply voltage range for flexible industrial use
LED indicators for quick status and fault diagnosis (ready/tripped)
Automatic reset functionality for improved operational efficiency
Compact 17.5 mm SIRIUS design for easy DIN rail mounting
Siemens engineering ensures high reliability and long service life
Specifications:
Product Name: Siemens Thermistor Motor Protection Relay Compact Evaluation Unit 17.5 mm 3RN2010-1CW30
Part Number: 3RN2010-1CW30
Product Type: Thermistor motor protection relay (evaluation unit)
Series: Siemens SIRIUS 3RN2
Control Supply Voltage: 24…240 V AC/DC
Contact Configuration: 1 NO + 1 NC
Housing Width: 17.5 mm
Mounting Type: DIN rail mounting
Function: Motor temperature monitoring and thermal protection
Indication: 2 LEDs (ready/tripped)
Application: Industrial motors, pumps, conveyors, compressors, machine tools, automation systems
Electrical Use: Low-voltage motor protection and control circuits
Brand: Siemens
The Siemens 3RN2010-1CW30 thermistor motor protection relay delivers accurate thermal monitoring, fast fault response, and dependable motor safety for modern industrial systems. Built with Siemens’ trusted SIRIUS protection technology, it ensures reduced downtime, extended motor life, and secure operation in demanding environments. For genuine Siemens industrial automation components, contact Ram Automations at info@ramautomations.com for dependable supply and support.
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