Description
The HRD series thermal relay is an essential component for protecting AC motors against over-current issues. Suitable for circuits with a rated voltage of up to 660V and a rated current of 93A at AC 50/60Hz, this relay is designed to enhance the safety and efficiency of your electrical systems. Featuring a differential mechanism and temperature compensation, it ensures optimal performance by accurately responding to varying thermal conditions. The relay is compatible with HLD series AC contactors and meets the IEC60947-4-1 standard, guaranteeing reliability and safety in various industrial applications.
Specifications
| No. | Times of the setting current | Motion time | Start condition | Ambient temperature |
|---|---|---|---|---|
| 1 | 1.05 | >2h | Cold state | 20±5°C |
| 2 | 1.2 | <2h | Heat state (Following the No.1 test) | |
| 3 | 1.5 | <4min | Cold state | |
| 4 | 7.2 | 2s< Tp≤10s | ||
| 5 | 10A | ≤63A | Heat state (Following the No.1 test) | |
| 4s< Tp≤10s |
Additional Information
Motion Characteristic: The relay features a three-phase balance motion time system, ensuring that even with phase loss, the relay responds appropriately to maintain safety and functionality.