Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 4.5 → 6.3 A F.L.C, 6.3 A Contact Rating, 4 kW, 3P, SIRIUS

This overload relay is specifically designed for motor protection, ensuring safe operation of electrical equipment. It is vital in safeguarding motors against overload conditions, thereby extending the machinery’s lifespan. The robust features and innovative design make this relay an essential component in industrial automation and electrical applications.

• Thermal overload protection for currents between 4.5A and 6.3A
• Offers integrated automatic and manual reset options for enhanced usability
• Configured for 3P installations, providing versatility
• Functional in a temperature range of -40°C to +70°C
• Features screw-type terminals for secure connections
• Supports operational voltage ratings up to 690V AC

• Utilised for motor protection in various industrial settings
• Suitable for integration into electrical control circuits
• Effective for protecting pumps, conveyors, and compressors
• Commonly employed in automation systems requiring overload trip functions

The product operates effectively within -40°C to +70°C.

It features both automatic and manual reset methods.

Yes, the relay allows for installation in any mounting position.

It is suitable for standard three-phase AC motors.

The overload relay supports current ratings between 4.5A and 6.3A.