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3RU2156-5CB10-8K – Thermal Overload Relay
Product Overview
The 3RU2156-5CB10-8K is a high-quality thermal overload relay manufactured by Siemens. Designed for reliable motor protection, this relay is suitable for use with S6 size 3RT contactors. It offers a current range of 90 – 125 A and is ideal for motors with a power rating of up to 55 kW. The relay features separate mounting, auto/manual reset options, and ensures safe and efficient operation in industrial applications.
Key Features
- Current Range: 90 – 125 A
- Motor Power: Up to 55 kW
- Mounting Type: Separate Mounting
- Reset Option: Auto/Manual Reset
- Compatibility: Suitable for S6 Size 3RT Contactors
- Protection Class: IP20
- Ambient Temperature: -20°C to +60°C
- Standards Compliance: IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14
- Dimensions: Compact design for easy installation
- Application: Industrial motor protection
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Operational Current (Ie) | 90 – 125 A |
| Rated Operational Power (P) | Up to 55 kW |
| Reset Mode | Auto/Manual |
| Mounting | Separate |
| Compatibility | S6 Size 3RT Contactors |
| Protection Class | IP20 |
| Ambient Temperature | -20°C to +60°C |
| Standards | IEC/EN 60947-4-1, UL 508, CSA C22.2 No. 14 |
Applications
The 3RU2156-5CB10-8K thermal overload relay is widely used in industrial applications for protecting motors from overloads and ensuring safe operation. It is suitable for use in:
- Conveyor systems
- Pumps and compressors
- Fans and blowers
- Machine tools
- Other motor-driven equipment
Benefits
- Reliable motor protection against overloads
- Flexible reset options for convenience
- Compact and easy to install
- Complies with international standards
- Durable design for long service life
Disclaimer
All specifications and details are subject to change without prior notice. Please refer to the official Siemens documentation for the most accurate and up-to-date information.
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