Please enter keywords to search

Global |EN

Choose your country & Language

Asia Pacific

Australia & New Zealand
India
Indonesia
Malaysia
Philippines
Singapore
Vietnam

Middle East & Africa

Saudi Arabia
South Africa
UAE
CHINT AJLAN
Egypt
Kenya

Europe

France
Kazakhstan
Italy
Netherlands
Spain
Turkey
United Kingdom

North America

Mexico
USA
Canada

Latin America

Brazil
Colombia
Ecuador
Peru

Choose your country & Language

Australia & New Zealand
India
Indonesia
Malaysia
Philippines
Singapore
Vietnam
Saudi Arabia
South Africa
UAE
CHINT AJLAN
Egypt
Kenya
France
Kazakhstan
Italy
Netherlands
Spain
Turkey
United Kingdom
Mexico
USA
Canada
Brazil
Colombia
Ecuador
Peru

Please enter keywords to search

Your search term contains restricted words. Please use different keywords.
NXB-125 Moulded Case Circuit Breaker
NXB-125-125A-1P-MCB-2
NXB-125-125A-1P-MCB-Front-5
NXB-125-125A-2P-MCB-2
NXB-125-125A-2P-MCB-Front-5
NXB-125-125A-3P-MCB-2
NXB-125-125A-3P-MCB-Front-5
NXB-125-125A-4P-MCB-2
NXB-125-125A-4P-MCB-Front-5
NXB-125-MCB-Side-2
NXB-125-125A-1P-MCB-2
NXB-125-125A-1P-MCB-Front-5
NXB-125-125A-2P-MCB-2
NXB-125-125A-2P-MCB-Front-5
NXB-125-125A-3P-MCB-2
NXB-125-125A-3P-MCB-Front-5
NXB-125-125A-4P-MCB-2
NXB-125-125A-4P-MCB-Front-5
NXB-125-MCB-Side-2

NXB-125 Moulded Case Circuit Breaker

The NXB-125 Moulded Case Circuit Breaker (MCCB) by CHINT offers advanced overload, short-circuit, and isolation protection for both AC and DC applications. Built to IEC/EN 60947-2 standards, it provides reliable performance across 230/400V AC and up to 220V DC systems. With rated currents from 63A to 125A, breaking capacity up to 20kA, and C or D tripping curves, the NXB-125 ensures efficient circuit protection and long service life for residential, commercial, and industrial environments.

Product Information

Recommend Blogs
FEBRUARY 14, 2026 Designing with IEC 61439-Compliant Switchgear for Better LV Assembly Performance

Designing an IEC switchboard is necessary for every operation, whether industrial or commercial. Acquiring IEC 61439 design verification for MDBs is important.

FEBRUARY 13, 2026 How Smart Meters Help Optimize Building Energy Use

Great building energy management makes use of smart meters to gauge energy consumption. Learn why smart metering is a sign of good energy monitoring practice.

FEBRUARY 12, 2026 Selecting the Right Control Components for High-Inrush Loads

Learn how to choose the proper control components like MCCB, overload relay, and contactors used in high inrush load for motor protection.

APRIL 22, 2025 What is a New Energy Air Switch Disconnector: Facts You Need to Know

Discover how the new energy air switch disconnector (solar disconnector switch) plays a crucial role in ensuring safety and reliability in utility-scale solar and battery energy storage systems (BESS).

APRIL 15, 2025 What is a New Energy Air Switch Disconnector: Facts You Need to Know

Discover how the new energy air switch disconnector (solar disconnector switch) plays a crucial role in ensuring safety and reliability in utility-scale solar and battery energy storage systems (BESS).

APRIL 2, 2025 Experience Smooth Motor Starting with CHINT’s NJRP5-D Soft Starter

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

MARCH 26, 2025 Single Phase vs Three Phase Voltage Regulator

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

MARCH 21, 2025 MCCB vs ACB: What Are the Differences?

Circuit breakers differ depending on intended use and load capacities. This article explores the key differences between MCCB vs ACB.

MARCH 18, 2025 IEC vs. UL: Understanding Air Circuit Breaker Certification Standards

Compare IEC vs UL certification for air circuit breakers: regional standards, safety compliance, and CHINT's globally certified solutions for reliable electrical protection.

MARCH 17, 2025 IEC vs. UL: Understanding Air Circuit Breaker Certification Standards

NVF2L Compact Micro Drive is designed to meet the growing demand for efficient, space-saving solutions in various industrial applications. Explore CHINT's industrial drive technology solutions.

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 purpose of the OUVR-2 Self-recovery Overvoltage and Undervoltage Protector?

It safeguards equipment by disconnecting power during unsafe voltage conditions (over or under) and automatically restoring it once the voltage stabilizes, ensuring continuous and safe operation.

 

Where is the OUVR-2 typically used?

It’s ideal for household distribution boxes, small commercial systems, or industrial control panels requiring stable power supply and unattended recovery.

 

How does the LED indication system work?

The green LED signals normal voltage, while the red LED lights up during overvoltage or undervoltage events, providing a quick status overview.

 

How long does it take to recover after a voltage fault?

The device reconnects automatically after 30 ±10 seconds once the voltage returns to the safe range (196V–253V).

 

What makes the OUVR-2 reliable?

Its inverse time-lag operation (<1s), 50,000-cycle lifespan, and 4kV surge withstand capability make it a durable, low-maintenance choice for reliable power protection.