Description
Description
The Siemens 3RU2126-1HB0 is a thermal overload relay from the SIRIUS 3RU2 series, designed to protect motors operating between 5.5 and 8.0 amps. It features a Class 10 tripping characteristic, ensuring rapid response to overloads, and includes both manual and automatic reset options for operational flexibility. Engineered for direct mounting onto SIRIUS 3RT2 Size S0 contactors, it uses screw-type terminals for secure connections in both main and auxiliary circuits. The relay offers phase loss protection, operates at voltages up to 690 V AC, and supports motor power ratings up to 5.5 kW at 690 V.
Features
- Adjustable Current Range: 5.5 to 8.0 A
- Trip Class: Class 10 for fast overload response
- Mounting: Directly mounts to SIRIUS 3RT2 Size S0 contactors
- Reset Options: Manual or automatic
- Terminals: Screw-type for both main and auxiliary circuits
- Phase Loss Protection: Detects and responds to phase failure
- Rated Operating Voltage: Up to 690 V AC
- Power Ratings:
- 3 kW at 400 V
- 4 kW at 500 V
- 5.5 kW at 690 V
- Ambient Temperature Range: -40°C to +70°C (operation)
- Weight: 0.187 kg
- Compliance: IEC 60947-4-1
