Function and Application
The NJYW1 series liquid level relay is applicable to AC 50Hz, the control circuit with rated control circuit power supply voltage up to 380V, for automatic liquid level control in civil water towers, high-level water tanks, underground reservoirs, etc. It can realize automatic water supply or drainage control according to the user's wiring requirements. This product is not suitable for liquid level control of liquids with very poor conductivity such as oil, purified water, flammable and explosive chemical liquids, and high-density sewage.
Detailed Parameters
| Parameter Classification | Parameter Item | Parameter Value |
|---|
| 3 Main Parameters and Technical Performance | Model | NJYW1-NL1 |
| | NJYW1-NL2 |
| | NJYW1-BL1 |
| | NJYW1-BL2 |
| Working Mode | Continuous Operation |
| Number of Contacts | 1 set of transfer contacts |
| | 1 set normally open, 1 set normally closed |
| Contact Capacity | Ue/le: AC-15 240V/0.75A, 415V/0.47A; Ith 5A |
| Rated Control Circuit Power Supply Voltage | AC 36V, AC 110V/220V, AC 220V/380V, 50Hz |
| | AC 36V, AC 110V, AC 220V, AC 380V, 50Hz |
| Allowable Fluctuation Range of Rated Control Circuit Power Supply Voltage | 85%-110% |
| Control Electrode Voltage | AC 24V |
| Wire Length | Maximum 1km |
| | Maximum 2km |
| | Maximum 1km |
| | Maximum 2km |
| Action Resistance | ≤25kΩ |
| Release Resistance | ≥2kΩ |
| Response Time | Action: Maximum 80ms; Release: Maximum 160ms |
| Environmental Temperature | -5℃~+40℃ |
| Power Consumption | <3VA |
| Installation Method | Rail mounting or panel mounting |
