Reliable electronic relay for motor protection with no external supply needed, featuring high accuracy and wide setting range.
The ABB EF370-380 is a self-supplied electronic overload relay designed to offer reliable and fast protection for motors during overload or phase failure events. It requires no external supply, making it easy to use like a thermal overload relay. This device is compatible with standard motor applications and is distinguished by its wide setting range, high accuracy, and ability to operate under high temperatures. Furthermore, users can select a trip class from 10E, 20E, or 30E. Additional features include temperature compensation, trip contact (NC), signal contact (NO), and options for automatic or manual reset. The device also includes a trip-free mechanism, STOP and Test functions, and a trip indication. Directly connectable to contactors, this relay is suitable for industrial environments and comes with ATEX and IECEx certifications, ensuring compliance with international standards. The EF370-380 is designed to enhance motor safety and efficiency, making it a vital component in industrial motor protection systems.
Key Features
- Self-supplied, no external power needed
- Wide setting range and high accuracy
- Compatible with standard motor applications
- Selectable trip classes: 10E, 20E, 30E
- ATEX and IECEx certified for safety
Technical Specifications
| Specification |
Value |
| Material | High-grade electronic components |
| Dimensions | 122.8 mm x 105 mm x 187.6 mm |
| Weight | 1.338 kg |
| Power | Self-supplied, no external supply required |
| Warranty | 2 years |
| Certification | ATEX, IECEx |
