ZJJ Series Insulation Monitoring Relay monitors the insulation of the DC bus, and it sends an alarm signal when the bus-to-ground insulation drops to a certain value. Besides, it is panel mounted type, and the ZJJ insulation monitoring relay has a high-sensitivity grounding resistance monitoring and display circuit, which is of great significance for the safe operation of the DC system.
ZJJ Series Insulation Monitoring Relay monitors the insulation of the DC bus, and it sends an alarm signal when the bus-to-ground insulation drops to a certain value. Besides, it is panel mounted type, and the ZJJ insulation monitoring relay has a high-sensitivity grounding resistance monitoring and display circuit, which is of great significance for the safe operation of the DC system.
| Model | ZJJ-4S | |
| Input voltage | 300-1200VDC | |
| Power supply voltage | 90-150VDC 180-300VDC |
|
| Power supply current | 7-20mA | |
| Operating temperature | -40°C ~ 70°C, 85% | |
| Measuring resistance | 0~199.9KΩ | |
| Precision | V=220V (5%) | |
| Short circuit ground current | V=220V (2mA) | |
| Alarm setting range | 0~100KΩ | |
| Action return factor | Rs=50KΩ(95%-98%) | |
| Output contact capacity | Sensitive load=5mS(DC220V0.2A) Resistive load(DC220V 2A) |
|
| Installation type | Panel mount | |
