Home

Products

Low Voltage

Power Transmission and Distribution

Low Voltage Switchgear and Software

Instruments & Meters

EV Charging

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

Residential PV & ESS

Utility PV & ESS

Commercial and Industry PV

Rail Transportation

Mining and Petrochemical

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 400-117-7797

Email Us global-sales@chint.com

About Us

About CHINT

News Center

Careers

Manufacturing Sites

Intelligent Electrical Laboratory Center

Process Engineering Center

News

Blog

Global |EN

Choose your country & Language

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

Your search term contains restricted words. Please use different keywords.

NHR40

NHR40-160-3-Switch-disconnector-fuse

NHR40-160-3-Switch-disconnector-fuse

NHR40-Switch-disconnector-fuse

NHR40-160-3-Switch-disconnector-fuse

NHR40-160-3-Switch-disconnector-fuse

NHR40-Switch-disconnector-fuse

NHR40

The NHR40 Fuse-switch Disconnector provides reliable manual isolation and circuit protection for AC 50Hz systems up to 690V and DC systems up to 440V, with rated currents up to 630A. Designed for infrequent manual operation, it safely breaks or isolates electrical circuits under load. The compact, fully enclosed structure enhances thermal stability, while the dual-contact, double-break design ensures dependable performance in industrial power distribution and switchgear systems.

Product Information

Overview
Catalog

Rated Operational Voltage:
- AC: 690V and below
- DC: 440V and below
Rated Current: 20A – 630A (depending on model size)
Conventional Thermal Current (Ith): 63A, 160A, 250A, 400A, 630A
Rated Insulation Voltage (Ui): 1000V
Associated Fuse Types: RT36 (NT/RT16) or RT20 fuses
Utilization Category:
- AC-22A and AC-23A (400V / 690V)
Operation Force: 60–230 N depending on model size
Operation Mode: Manual rotary handle (front or lateral operation)
Poles: 3P / 4P options
Breaking System: Double-break contacts in series for improved breaking capacity and safety
Thermal Design: Fully enclosed structure for better heat dissipation and insulation performance
Operation Mechanism: Energy storage spring ensures rapid contact movement, independent of manual speed
Installation Options:
- Front or facade operation inside/outside switchgear
- Rail-mounted (≤63A)
- Box-type enclosure available for ≤63A models
Standards Compliance: IEC/EN 60947-3

Name

Size

Release time

Operate

NHR40-Switch-disconnector-fuse-Catalog.pdf

958.82KB

2024-10-21

Download

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

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

Collapsed

Expand

FAQs

What is the function of the NHR40 Fuse-switch Disconnector?

It serves as a manual isolation and protection device, allowing operators to safely disconnect circuits under load and protect against overcurrent or short-circuit faults.

What makes the NHR40 design reliable in industrial applications?

Each phase contains two contact groups with double breaking points, improving its current-breaking capacity and ensuring a reliable power isolation mechanism.

What fuse types can be used with this disconnector?

It is compatible with RT36 (NT/RT16) and RT20 fuse series, which users can select based on application voltage and current needs.

How does the operating mechanism improve safety?

The built-in energy storage spring ensures that contact operation speed is independent of manual rotation, guaranteeing consistent and safe opening/closing.

What installation options are available?

The NHR40 can be installed inside switchgear (front operation) or outside panels (facade operation). Models ≤63A can also be mounted on DIN rails or boxed for protection.