Home
Products
Low Voltage
Power Transmission and Distribution
Low Voltage Switchgear and Software
Instruments & Meters
EV Charging
IEC

UL

Transmission

Distribution

Power Quality & Automation

Main Distribution Board

Sub Distribution Board

Final Distribution Box

Software

Intelligent Solution

Core Parts

Gas Meter

Electricity Meter

EV Charger

Main Power Distribution Sub Power Distribution Final Power Distribution Industrial Control
Main Power Distribution(UL) Sub Power Distribution(UL) Final Power Distribution(UL) Industrial Control(UL)
Solutions
Power Utility
OEM
Telecom & Data Center
New Energy
Industry
Buildings
Transmission Grid

Distribution Grid

Generator Equipment

Modern Logistics Equipment

Pumps and Vacuum Equipment

Food and Beverage

Mining Machinery

HVAC

Elevator

Data Center

Residential PV & ESS

Utility PV & ESS

Commercial and Industry PV

BESS

Metallurgical

Oil & Gas

Rail Transportation

Mining and Petrochemical

Buildings

Substation Mobile Substations
Micro-Grid Solution Intelligent Power Distribution Solutions
Generator Control System Solution Generator Dual Power Supply Control System Solution Diesel Generator
Conveyor Control Box Solution Control Box Solution for Telescopic Conveyor Lifts
Water Supply Control System Solution Sewage Control System Solution Fire Pump Control System Solution
Food and Beverage Control System Solution
Sand and Gravel Production Line Electrical Control System Solution
Containerised Solution Fusion Module Solution
Residential Solar Power Solution
Utility Scale Power Storage Solution C&I Storage Solution
High, Medium, and Low Voltage Digital Distribution Solution Intelligent Motor Control Center Solution
Refining Production Power Distribution and DCS Control System Solution Oilfield Extraction Power Distribution Solution Integrated Electrical Control and Instrumentation Solution for Oil and Petrochemical Industries
Power Transmission and Distribution Low Voltage Intelligent Distribution Low Voltage Control and Protection Low Voltage Distribution and Control Low Voltage Motor Control Low Voltage Reactive Power Compensation
Main Distribution System Solution Secondary Distribution System Solution Final Distribution System Solution Capacitor Cabinet Solution Elevator Control Solution Emergency Lighting Solution Fan Control Solution Meter Box Solution Pump Room Solution SVG Capacitor Solution
Sustainability
Services
Service Center
Download Center
Contact Us
Find a local subsidiary

Product Documents

Solutions

Cases

Corporate Report

Contact Us

Call Us +27 (0) 10 443 9791
Email Us info@chintglobal.co.za
About Us
About CHINT
News Center
Careers
Local Support
Manufacturing Sites

Intelligent Electrical Laboratory Center

Process Engineering Center

News

Blog

Catalogues

Please enter keywords to search

Global |EN

Choose your country & Language

Global English
Group
English
|
Chinese

Asia Pacific

Australia & New Zealand
English
India
English
Indonesia
English | Indonesian
Malaysia
English
Philippines
English
Singapore
English
Vietnam
English | Tiếng Việt

Middle East & Africa

Egypt
English | العربية
Kenya
English
Saudi Arabia
English
South Africa
English
United Arab Emirates
English

Europe

France
Français
Kazakhstan
Русский
Netherlands
Dutch
Spain
Español
Italy
Italian
Turkey
Türkçe
United Kingdom
English

Latin America

Brazil
Português
Colombia
Español
Ecuador
Español
Peru
Español

North America

Canada
English | Français
Mexico
English | Español
United States
English
Home
Products
Solutions
Sustainability
Services
About Us
Catalogues
Main Menu
Home
Main Menu
Products
Low Voltage
Power Transmission and Distribution
Low Voltage Switchgear and Software
Instruments & Meters
EV Charging
Main Menu
Solutions
Power Utility
OEM
Telecom & Data Center
New Energy
Industry
Buildings
Main Menu
Sustainability
Main Menu
Services
Service Center
Download Center
Contact Us
Main Menu
About Us
About CHINT
News Center
Careers
Local Support
Main Menu
Catalogues
Low Voltage
IEC
UL
Power Transmission and Distribution
Transmission
Distribution
Power Quality & Automation
Low Voltage Switchgear and Software
Main Distribution Board
Sub Distribution Board
Final Distribution Box
Software
Intelligent Solution
Core Parts
Instruments & Meters
Gas Meter
Electricity Meter
EV Charging
EV Charger
Power Utility
Transmission Grid
Distribution Grid
OEM
Generator Equipment
Modern Logistics Equipment
Pumps and Vacuum Equipment
Food and Beverage
Mining Machinery
HVAC
Elevator
Telecom & Data Center
Data Center
New Energy
Residential PV & ESS
Utility PV & ESS
Commercial and Industry PV
BESS
Industry
Metallurgical
Oil & Gas
Rail Transportation
Mining and Petrochemical
Buildings
Buildings
Service Center
Find a local subsidiary
Download Center
Product Documents
Solutions
Cases
Corporate Report
Contact Us
Contact Us

Call Us +27 (0) 10 443 9791
Email Us info@chintglobal.co.za
About CHINT
Manufacturing Sites
Intelligent Electrical Laboratory Center
Process Engineering Center
News Center
News
Blog
Careers
Local Support
IEC
Main Power Distribution Sub Power Distribution Final Power Distribution Industrial Control
UL
Main Power Distribution(UL) Sub Power Distribution(UL) Final Power Distribution(UL) Industrial Control(UL)
Transmission Grid
Substation Mobile Substations
Distribution Grid
Micro-Grid Solution Intelligent Power Distribution Solutions
Generator Equipment
Generator Control System Solution Generator Dual Power Supply Control System Solution Diesel Generator
Modern Logistics Equipment
Conveyor Control Box Solution Control Box Solution for Telescopic Conveyor Lifts
Pumps and Vacuum Equipment
Water Supply Control System Solution Sewage Control System Solution Fire Pump Control System Solution
Food and Beverage
Food and Beverage Control System Solution
Mining Machinery
Sand and Gravel Production Line Electrical Control System Solution
Data Center
Containerised Solution Fusion Module Solution
Residential PV & ESS
Residential Solar Power Solution
BESS
Utility Scale Power Storage Solution C&I Storage Solution
Metallurgical
High, Medium, and Low Voltage Digital Distribution Solution Intelligent Motor Control Center Solution
Oil & Gas
Refining Production Power Distribution and DCS Control System Solution Oilfield Extraction Power Distribution Solution Integrated Electrical Control and Instrumentation Solution for Oil and Petrochemical Industries
Mining and Petrochemical
Power Transmission and Distribution Low Voltage Intelligent Distribution Low Voltage Control and Protection Low Voltage Distribution and Control Low Voltage Motor Control Low Voltage Reactive Power Compensation
Buildings
Main Distribution System Solution Secondary Distribution System Solution Final Distribution System Solution Capacitor Cabinet Solution Elevator Control Solution Emergency Lighting Solution Fan Control Solution Meter Box Solution Pump Room Solution SVG Capacitor Solution

Choose your country & Language

Global English
Group
English
|
Chinese
Australia & New Zealand
English
India
English
Indonesia
English | Indonesian
Malaysia
English
Philippines
English
Singapore
English
Vietnam
English | Tiếng Việt
Egypt
English | العربية
Kenya
English
Saudi Arabia
English
South Africa
English
United Arab Emirates
English
France
Français
Kazakhstan
Русский
Netherlands
Dutch
Spain
Español
Italy
Italian
Turkey
Türkçe
United Kingdom
English
Brazil
Português
Colombia
Español
Ecuador
Español
Peru
Español
Canada
English | Français
Mexico
English | Español
United States
English

Please enter keywords to search

Your search term contains restricted words. Please use different keywords.
NJYW1
Product Consultation
Low Voltage IEC Industrial Control NJYW1
Clear all
Industrial Control
NJYW1
NJYW1

NJYW1

The CHINT NJYW1 Series Liquid Control Relays are designed for automatic control of water levels in tanks, towers, and reservoirs. Operating with AC voltages up to 380 V, they enable fully automated water supply and drainage control. With selectable control distances (1 km or 2 km electrode wire length) and options for pump protection, the NJYW1 provides reliable liquid level monitoring for civil, commercial, and industrial water systems.

Contact Us

Product Information

Name
Size
Release time
Operate
NJYW1-LIQUID-LEVEL-RELAY-Catalog.pdf
243.95KB
2025-12-18
Download
Name
Size
Release time
Operate
2111-NJYW1-Liquid Level Relay-Manual.pdf
1.34MB
2025-03-13
Download

Play Video

Related Products

JYB-714 JYB-714
View Details Documents
Documents
View all documents
NJB1-YW NJB1-YW
View Details Documents
Documents
View all documents
Recommend Blogs
Integrating Renewable Energy into Existing Grid Networks
DECEMBER 8, 2025 Integrating Renewable Energy into Existing Grid Networks

Integrate renewables smoothly with modern power transformer solutions that stabilize voltage, support bidirectional flow, and strengthen grid reliability for clean energy growth.

A Complete Guide to Selecting MCBs and RCCBs for Modern Buildings
DECEMBER 5, 2025 A Complete Guide to Selecting MCBs and RCCBs for Modern Buildings

Discover how to choose the right devices in the MCB vs RCCB lineup for safer, more reliable systems. Learn practical steps to strengthen electrical protection in modern buildings.

Understanding the VFD Working Principle in Industrial Automation
JULY 1, 2025 Understanding the VFD Working Principle in Industrial Automation

Learn the working principle of VFDs and discover how CHINT NVF7 boosts performance, energy savings, and equipment longevity in industrial automation.

RCBO Breakers Explained: How They Work, Wiring Diagrams, and Testing Tips
JUNE 25, 2025 RCBO Breakers Explained: How They Work, Wiring Diagrams, and Testing Tips

Discover how RCBO breakers protect against overloads and Earth leakages. Learn about wiring diagrams, differences from MCBs, and testing tips for safe operations.

What Is A Pulse Relay and How Does It Work?
JUNE 9, 2025 What Is A Pulse Relay and How Does It Work?

Explore the energy-efficient pulse relay technology used in automation, lighting, and security systems. Featuring CHINT’s NJMC1 relay for reliable performance.

CHINT Electric Solutions: Empowering Green and Smart Buildings
MAY 22, 2025 CHINT Electric Solutions: Empowering Green and Smart Buildings

The article highlights CHINT Electric Solutions' role in advancing green and smart buildings through innovative, reliable electrical systems that enhance energy efficiency, sustainability, and smart functionality across modern construction projects.

Single Phase vs Three Phase Voltage Regulator
MARCH 21, 2025 Single Phase vs Three Phase Voltage Regulator

This article explains the differences between single phase voltage regulators and three phase voltage regulators.

How to Install NM8N Molded Case Circuit Breaker
FEBRUARY 12, 2025 How to Install NM8N Molded Case Circuit Breaker

This article provides step-by-step guidance to help ensure the successful installation of the NM8N Molded Case Circuit Breaker.

How to Install NXB-63 Miniature Circuit Breaker
JANUARY 20, 2025 How to Install NXB-63 Miniature Circuit Breaker

This guide provides step-by-step instructions for the proper installation, wiring, and testing of the NXB-63 MCB to ensure optimal performance and safety.

How to Choose a House Distribution Box
SEPTEMBER 9, 2024 How to Choose a House Distribution Box

A well-chosen distribution box ensures the safety and efficiency of your household electrical system. This article guides you through selecting a distribution box.

Need Support From Us?

Blog
Blog

Find expert perspectives on the trends and technologies driving your business.

View Now
Download Center
Download Center

Download new and previously released documents including product document, solutions, cases, coporate report.

View Now
Contact Us
Contact Us

Reach out to us to receive more information, technical support, assistance with complaints and more.

Get Support
Collapsed
Expand

FAQs

 

What is the primary function of the NJYW1 Liquid Control Relay?

It provides automatic water supply and drainage control, ensuring that liquid levels remain within preset limits in tanks and reservoirs.

 

What are the available model options?

There are four main versions:

NJYW1-NL1 / NL2: Standard water supply and drainage types (1 km or 2 km cable length).

NJYW1-BL1 / BL2: Water supply and drainage types with pump dry-run protection (1 km or 2 km).

 

What voltage and frequency ranges are supported?

The relay operates at AC 36 V, 110 V, 220 V, or 380 V, supporting 50/60 Hz systems.

 

Can it be used for any liquid type?

It is designed for conductive liquids such as clean or process water. It is not suitable for non-conductive or hazardous liquids (e.g., oil, pure water, chemicals).

 

What installation options are available?

It can be DIN rail mounted or panel mounted, providing flexibility for various control panel designs.

Products
Low Voltage
Power Transmission and Distribution
Low Voltage Switchgear and Software
Instruments Meters
EV Charging
Solutions
Transmission Grid
Distribution Grid
Buildings
Generator Equipment
Pumps and Vacuum Equipment
Mining Machinery
HVAC
Elevator
Data Center
Residential PV & ESS
Utility PV & ESS
Commercial and Industry PV
Metallurgical
Oil & Gas
Rail Transportation
Mining and Petrochemical
About Us
About CHINT Global
News Center
Blog
Career
CHINT Privacy Policy
Case Center
Services
Download Center
Contact Us
Get latest updates from CHINT
logo
Phone +27 (0) 10 443 9791
Mailbox info@chintglobal.co.za
Follow us
snsLogo snsLogo
ZHEJIANG ICP RECORD NO. 12033679 Copyright 2026 CHINT Group. All Rights Reserved