Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 5.5 → 8 A F.L.C, 8 A Contact Rating, 3 kW, 3P, SIRIUS

This thermal overload relay is designed to protect electric motors operating within a range of 5.5 to 8 A. It is suitable for direct mounting on contactors and integrates effortlessly into automation systems. With compact dimensions of 76mm x 45mm x 70mm, the relay can function in an operating temperature range from -40 to +70°C, making it suitable for various environments.

• Protects motors from overload and enhances operational safety
• Offers manual and automatic reset options for convenience
• High current rating accommodates up to 8A
• Integrated auxiliary switch acts as a fault indicator
• Compatible with 3-phase connections for versatility
• Features screw terminals for secure electrical connections

• Ideal for automation within manufacturing processes
• Used for protection in HVAC equipment
• Applicable in power distribution systems for motors

Yes, it operates effectively within a range of 5.5 to 8 A.

Yes, it is designed to work from -40°C to +70°C.

Yes, it has both manual and automatic reset methods.

Yes, it is specifically designed for 3-phase overload protection.

Yes, it is adaptable to any mounting position.

Siemens Sirius Range Contactor & Control Relays