Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 14 → 20 A F.L.C, 20 A Contact Rating, 7.5 kW, 3P, SIRIUS

This thermal overload relay plays a vital role in protecting electrical motors, specifically designed for those operating within a current range of 14 to 20 A. Featuring both automatic and manual reset functions, it helps prevent damage caused by overload situations. Its durable design allows for easy installation directly onto contactors, making it suitable for various automation and electrical machinery applications.

• Provides continuous protection for 3-phase motors
• Automatic reset feature enhances operational convenience
• Integrated auxiliary contacts for additional functionality
• Compact dimensions support space-efficient installations

• Applicable with industrial machinery to ensure operational safety
• Can be integrated into commercial electrical systems
• Commonly used in manufacturing environments for motor protection

The device can be installed directly on contactors using screw terminals, ensuring a straightforward setup.

Upon a fault occurrence, the device disconnects the motor and automatically reconnects once the fault is resolved.

Yes, it is rated for safe operation with currents up to 20A.

Yes, it performs well within a temperature range of -40 to +70°C.