The NR28 Series Thermal Overload Relay is suitable for overload and phase-loss protection of AC motors operating continuously or intermittently long-term at AC 50Hz/60Hz, rated voltage up to 690V, and current range 0.1–150A. The thermal relay also features temperature compensation, action indication, automatic and manual reset, and stop functions, with stable and reliable performance.

This product complies with GB 14048.4, IEC 60947-4-1, and other standards.

The series can be plug-in mounted with NRC contactors or installed independently.