Description
Description
The Siemens 3RU2126-4AB0 is a thermal overload relay from the SIRIUS 3RU2 series, designed to protect motors operating between 11 and 16 amps. It features a Class 10 tripping characteristic, offering fast response to overloads, and includes manual and automatic reset options for operational flexibility. This relay is built for direct mounting onto SIRIUS 3RT2 Size S0 contactors and uses screw terminals for both main and auxiliary circuits. It provides phase loss protection, supports motor power ratings up to 11 kW at 690 V, and operates reliably in ambient temperatures from -40°C to +70°C.
Features
- Adjustable Current Range: Protects motors operating between 11 and 16 A
- Trip Class: Class 10 tripping for fast response to overloads (within 10 seconds)
- Mounting Style: Directly mounts to SIRIUS 3RT2 Size S0 contactors
- Reset Options: Offers both manual and automatic reset modes
- Terminals: Screw-type for secure connections in both main and auxiliary circuits
- Phase Loss Protection: Detects and responds to phase failure conditions
- Rated Operating Voltage: Up to 690 V AC
- Motor Power Ratings:
- 7.5 kW at 400 V
- 7.5 kW at 500 V
- 11 kW at 690 V
- Ambient Temperature Range: Operates reliably from -40°C to +70°C
- Compact Design: Built on a Size S0 frame with IP20 front protection
- Compliance: Meets IEC 60947-4-1 standards
- Weight: Approximately 0.18 kg
