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.

BH-0.66

BH-Ⅱ-0.66-40II-CT-1

BH-Ⅱ-0.66-50II-CT-2

BH-Ⅱ-0.66-60II-CT-3

BH-Ⅱ-0.66-80II-CT-4

BH-0.66 20III-CT-Drawing

BH-0.66 20III-CT-Drawing

BH-0.66 60III-CT-Drawing

BH-0.66 80III-CT-Drawing

BH-0.66 120I-CT-Drawing-2

BH-0.66-30IB-CT-Drawing-7

BH-0.66 120I-CT-Drawing-2

BH-Ⅱ-0.66-40II-CT-1

BH-Ⅱ-0.66-50II-CT-2

BH-Ⅱ-0.66-60II-CT-3

BH-Ⅱ-0.66-80II-CT-4

BH-0.66 20III-CT-Drawing

BH-0.66 20III-CT-Drawing

BH-0.66 60III-CT-Drawing

BH-0.66 80III-CT-Drawing

BH-0.66 120I-CT-Drawing-2

BH-0.66-30IB-CT-Drawing-7

BH-0.66 120I-CT-Drawing-2

BH-0.66

The BH-0.66 I Current Transformer is a reliable measurement and protection device for low-voltage AC systems up to 660 V. Designed for use with ammeters, watt-hour meters, and control relays, it provides accurate current conversion with secondary outputs of 5 A and high precision across multiple accuracy classes (0.2 to 1.0). Compact and easy to install on busbars or panels, it ensures safe, stable, and accurate current monitoring in industrial, commercial, and energy management systems.

Product Information

Application: For use with ammeters, watt-hour meters, relays, and monitoring instruments
Rated Primary Current: From 5 A to 4000 A (varies by model type 20 I to 120 I on pp. 2–5)
Rated Secondary Current (Isn): 5 A
Rated Voltage (Ue): 660 V AC
Rated Frequency: 50/60 Hz
Accuracy Classes: 0.2, 0.2S, 0.5, 0.5S, 1.0 (model-dependent)
Rated Power (VA): 2.5 VA to 40 VA depending on ratio and model size
Operating Temperature: −5 °C to +40 °C; humidity < 80 %
Altitude: ≤ 1000 m
Installation Type: Busbar or plate mounting
Standards Compliance: IEC 61869-2
Housing Material: Flame-retardant, high-strength thermoplastic enclosure
Available Window Sizes:
- BH-0.66 20 I – 22 mm diameter window
- BH-0.66 30 I – 23 mm diameter
- BH-0.66 40 I – 31 mm diameter
- BH-0.66 60 I – 37 mm diameter
- BH-0.66 80 I – 52 mm diameter
- BH-0.66 100 I – 62 mm diameter
- BH-0.66 120 I – 70 mm diameter
Mounting Dimensions: Width 68 – 197 mm; height 86 – 173 mm depending on model
Power Factor: Linear performance with low phase error for precision measurement circuits

Name

Size

Release time

Operate

BH-I-CT-Catalog.pdf

1.04MB

2024-10-23

Download

Name

Size

Release time

Operate

1909-BH-0.66 SDH-0.66-CT-Manual.pdf

1.84MB

2024-10-23

Download

Name

Size

Release time

Operate

2112-BH-Ⅰ-CT-Certificate.pdf

44.35KB

2024-10-23

Download

Name

Size

Release time

Operate

BH-0.66 30Ⅰ-CT-Drawing-1.stp

3.54MB

2024-10-23

Download

BH-0.66 30Ⅰ-CT-Drawing-2.stp

4.25MB

2024-10-23

Download

BH-0.66 40Ⅰ-CT-Drawing-3.stp

4.24MB

2024-10-23

Download

BH-0.66 50Ⅰ-CT-Drawing-4.stp

4.26MB

2024-10-23

Download

BH-0.66 50Ⅰ-CT-Drawing-5.stp

3.55MB

2024-10-23

Download

BH-0.66 60Ⅰ-CT-Drawing-6.stp

4.26MB

2024-10-23

Download

BH-0.66 60Ⅰ-CT-Drawing-7.stp

3.54MB

2024-10-23

Download

BH-0.66 80Ⅰ-CT-Drawing-8.stp

4.3MB

2024-10-23

Download

BH-0.66 80Ⅰ-CT-Drawing-9.stp

3.55MB

2024-10-23

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 BH-0.66 I Current Transformer?

It converts high primary currents to a standard 5 A secondary output for safe measurement and monitoring by meters and relays.

Where is it typically used?

In low-voltage distribution panels, motor control centers, and automation systems to monitor and control current flow accurately.

What accuracy options does it offer?

The BH-0.66 I supports accuracy classes 0.2, 0.5, and 1.0, making it suitable for both billing-grade measurement and protection applications depending on the selected model.

Can it handle large-current applications?

Yes. Models like BH-0.66 120 I support currents up to 4000 A, suitable for high-capacity distribution lines and busbars.

What installation options are available?

It can be mounted on busbars or plates, with multiple window sizes and compact dimensions to fit switchboards and control panels.