Function and Application
The NJBK10 series motor protector (hereinafter referred to as the protector) is suitable for AC motors with an AC frequency of 50HZ, a rated insulation voltage of up to 690V, and a rated operating current of 1A~200A. It provides protection against overload, phase failure, and three-phase imbalance for long-term or intermittent operation.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| 3.1 Main Parameters and Technical Performance | Elevation | Not more than 2000m |
| Surrounding Air Temperature | -5℃～+40℃, and the average value within 24 hours does not exceed +35℃ |
| Atmospheric Conditions | When the temperature is up to +40℃, the relative humidity of the air does not exceed 50%; at lower temperatures, higher relative humidity is allowed, for example, at +20℃, the relative humidity can reach 90%. Special measures should be taken for occasional condensation caused by temperature changes |
| Pollution Level | 3 |
| Inclination of Installation Surface from Vertical | No more than ±5° |
| 3.6 | In a medium without explosion risk, and where there is no gas that can corrode metal and damage insulation, or a large amount of conductive dust |
| 3.7 | In a place with rain and snow protection, and without a lot of water vapor |
| 3.8 | In a place without significant vibration, impact, and vibration |
| 3.9 | Installation Category: II |
| 3.10 | Electromagnetic Environment: A |
| 3.11 | Enclosure Protection Level: IP20. |
