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NJB1-YW
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Low Voltage IEC Industrial Control NJB1-YW
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NJB1-YW

The CHINT NJB1-YW Liquid Control Relay provides precise and reliable liquid level control for civil water towers, elevated tanks, and underground reservoirs. Designed for AC 50/60 Hz circuits with rated voltages up to 380 V, it enables automatic water supply or drainage operations based on user configuration. With adjustable resistance sensitivity, fast response time, and LED status indication, the NJB1-YW ensures dependable performance in water management and industrial control systems.

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Product Information

Name
Size
Release time
Operate
NJB1-YW-LIQUID-LEVEL-RELAY-Catalog.pdf
239.5KB
2025-12-18
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Name
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2111-NJB1-YW-Liquid Level Relay-Manual.pdf
1.46MB
2024-10-15
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FAQs

 

What is the main function of the NJB1-YW Liquid Control Relay?

It automatically controls water levels in storage tanks and reservoirs, switching pumps ON or OFF for water supply or drainage based on liquid level sensors.

 

What voltage options are available?

The NJB1-YW supports AC 110 V, 220 V, and 380 V control power voltages for different circuit designs.

 

How does the LED indication work?

The green LED indicates that power is supplied to the relay, while the red LED lights up when the relay is operating.

 

What type of liquids can it monitor?

It is suitable for conductive liquids like tap or process water but not recommended for oil, purified water, or chemical liquids.

 

How far can the probe cables be installed?

The maximum electrode cable length is 100 meters, providing flexibility for large tanks and remote water systems.

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