Siemens Thermistor motor temperature protection Monitoring Relay With DPDT Contacts, 24 V ac/dc

  • RS Stock No. 175-2283
  • Mfr. Part No. 3RN2011-2BA30
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

Siemens Thermistor Motor Protection Relay

The Siemens thermistor motor protection relay is a reliable over temperature protection device that saves motors from overloading. The relay has a mechanism for temperature monitoring or advanced sensing for cutting OFF the power to the motor when it exceeds an initially set threshold. It senses winding temperature to evaluate the motor for overloading or overheating. Just like any other Siemens relay, this motor protection relay guarantees minimum shutdown time, high efficiency and long life.

Features and Benefits

• Compact design
• Contacts configuration: DPDT
• Cost-efficient
• High accuracy
• High endurance
• LED status indicator
• Long mechanical life of 10M cycles
• Shock resistant
• Smart sensing
• Vibration resistant• Voltage rating of 24VAC/DC
• Current rating of 5A
• Frequency range of 50-60Hz


• Cement works
• Industrial automation
• Paper industry
• Power stations
• Textile industry


• ATEX approved
• CCC certified
• CE certified
• CSA approved
• EAC certified
• IP20 rating
• UL approved

Attribute Value
Monitoring Application Thermistor motor temperature protection
Supply Voltage 24 V ac/dc
Contact Configuration DPDT
Voltage Sensitivity Motor Voltage
Dimensions 22.5 x 91.6 x 100 mm
Maximum Operating Temperature +60°C
Mounting Type DIN Rail
Hazardous Area Certification ATEX
Series 3RN2
Height 100mm
Terminal Type Cage Clamp
Minimum Operating Temperature -25°C
Length 22.5mm
Width 91.6mm
Operating Temperature Range -25 → +60 °C
On back order for despatch 09/06/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each
$ 167.07
(exc. GST)
$ 192.13
(inc. GST)
Per unit
1 +