Please enter keywords to search

Global |EN

Choose your country & Language

Asia Pacific

Australia & New Zealand
India
Indonesia
Malaysia
Philippines
Singapore

Middle East & Africa

Kenya
Saudi Arabia
South Africa
United Arab Emirates

Europe

France
Kazakhstan
Netherlands
Spain
Italy
Turkey
United Kingdom

Latin America

Brazil
Colombia
Ecuador
Peru

North America

Canada
Mexico
United States
Low-voltage
Instruments and Meters
EV Charging
Telecom & Data Center
Buildings
Products
Solutions
Project References
Corporate Reports
CHINT Global
CHINT's Insights
Careers
Locate Us
Contact Us
Call Us +61 1800 270 870
Email Us info.australia@CHINT.com
Privacy Policy
Online Services

Choose your country & Language

Australia & New Zealand
India
Indonesia
Malaysia
Philippines
Singapore
Kenya
Saudi Arabia
South Africa
United Arab Emirates
France
Kazakhstan
Netherlands
Spain
Italy
Turkey
United Kingdom
Brazil
Colombia
Ecuador
Peru
Canada
Mexico
United States

Please enter keywords to search

Your search term contains restricted words. Please use different keywords.
NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)
NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current  Protection (Electronic)
NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current  Protection (Electronic)
NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current  Protection (Electronic)
NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current  Protection (Electronic)

NB2LE-40ZT Smart Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)

The NB2LE-40ZT Smart Residual Current Operated Circuit Breaker is a highly advanced device offering comprehensive protection against overload, short-circuit, overvoltage, undervoltage, and earth leakage faults. This intelligent RCBO provides remote control, precise electrical parameter measurement (voltage, current, power), and features networking capabilities via RS485 or Bluetooth for seamless integration into smart systems. With an automatic leakage self-check function and fault alarms, it ensures enhanced safety and efficient power management for a wide range of applications, including residential, smart buildings, commercial, and industrial electrical distribution systems.

Product Information

Recommend Blogs
MAY 25, 2026 Getting More from Your Solar Investment: How Smart Switchgear Maximises PV Performance

Long-term solar performance depends on the electrical system, not just the panels. A practical guide to smart switchgear, protection, and combiner box selection for PV.

MAY 25, 2026 Power Quality in Oil and Gas: Why It Matters More Than You Think

In oil and gas, poor power quality can trigger safety shutdowns and damage instrumentation. A practical guide to power quality monitoring for operations teams.

MAY 25, 2026 Fan and HVAC Control Systems in Large Buildings

HVAC uses up to 40% of a commercial building's energy. The electrical control system determines efficiency, reliability, and BMS integration. Here's what to know.

MAY 25, 2026 Emergency Lighting and Power Continuity in Commercial Buildings

In commercial buildings, emergency lighting is a legal requirement. A practical guide to system design, compliance, and integrating backup power with life safety.

MAY 22, 2026 Keeping the Lights On: Power Reliability Strategies for Food & Beverage Facilities

Unplanned downtime in food manufacturing is expensive. Learn how the right electrical components prevent costly stoppages in food processing plants.

MAY 22, 2026 Smarter Water Management: Electrical Control Solutions for Pumps and Water Systems

Learn how the right pump electrical control systems. From VFDs to fire pump panels, improve reliability, cut energy costs, and protect motor assets.

MAY 22, 2026 How to Choose the Right Generator Control System for Your Application

Choosing the wrong generator control components causes failure when it matters most. A practical guide to ATS, circuit breakers, and dual supply design.

MAY 22, 2026 Electrical Solutions for Modern Logistics: Conveyors, Lifts, and Warehouse Automation

As e-commerce pushes warehouse automation to new heights, electrical control systems are under more pressure than ever. Here's how to specify them correctly.

MAY 22, 2026 C&I Solar and Storage: What Businesses Need to Know Before Going Solar

Commercial solar has very different requirements from residential. Learn what C&I solar and storage projects really need to succeed, and what to watch out for.

MAY 22, 2026 Building a Reliable Microgrid: From Planning to Power-On

Plan resilient microgrid projects with practical guidance on topology, storage sizing, switchgear, islanding protection, and technical support teams.

Helpful Links

Blog
Blog

Explore expert insights, trends, and CHINT perspectives on the smart energy industry.

Read More
Resources
Resources

Download essential CHINT resources for your business needs.

Download Now
Contact Us
Contact Us

Have questions? Contact us for support and solutions.

Get Support
Collapsed
Expand

FAQs

 

What is the NB2LE-40ZT used for?

It’s a smart RCBO that combines residual current protection and over-current protection with real-time monitoring and remote control for modern electrical systems.

 

How is the NB2LE-40ZT different from traditional RCBOs?

Unlike standard RCBOs, it supports RS485 and Bluetooth communication, fault self-diagnosis, and remote operation via CHINT’s SMG-WL1SR Smart Gateway.

 

What protection functions are built into this device?

It offers comprehensive protection — overload, short-circuit, over/undervoltage, leakage, and phase loss — ensuring maximum safety for connected circuits.

 

What kind of electrical data can it measure?

The breaker can measure voltage, current, and power with high accuracy (±1% for voltage/current, ±2% for power), enabling effective energy management.

 

Can it be remotely managed and monitored?

Yes. It communicates via RS485 (Modbus-RTU) and integrates seamlessly with smart energy management systems, allowing remote operation and fault alarm functions.