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3RU21665EB108K – Thermal Overload Relay
Product Overview
The 3RU21665EB108K is a high-quality thermal overload relay designed by Siemens for reliable motor protection. It is suitable for use with S10 size contactors and offers a current range of 140 – 200 A. This relay ensures the safe operation of motors by detecting overload conditions and disconnecting the power supply to prevent damage.
Key Features
- Current Range: 140 – 200 A
- Mounting Type: Separate Mounting
- Reset Mode: Auto/Manual Reset
- Compatibility: Suitable for S10 Size Contactors
- Protection Class: Provides reliable overload protection for motors
- Design: Compact and robust construction for durability
- Application: Ideal for industrial and commercial motor control systems
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Operational Current (Ie) | 140 – 200 A |
| Mounting Type | Separate Mounting |
| Reset Mode | Auto/Manual |
| Compatible Contactor Size | S10 |
| Standards Compliance | IEC/EN 60947-4-1 |
| Ambient Temperature Range | -20°C to +60°C |
| Protection Degree | IP20 |
Applications
The 3RU21665EB108K thermal overload relay is widely used in various industrial and commercial applications, including:
- Motor control centers
- Pump and fan systems
- Conveyor systems
- Compressors
- Machinery and equipment requiring motor protection
Benefits
- Ensures motor safety by preventing overload conditions
- Flexible reset options (auto/manual) for convenience
- Easy to install and integrate with S10 size contactors
- Durable design for long-lasting performance
- Complies with international standards for reliability
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