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Yueqing Heyi Electrical Co., Ltd.

Flexible Rogowski Coil, Rogowski, Ropt CT manufacturer / supplier in China, offering Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv, Convenient Installation Single Phase Sts DIN Rail Prepaid Energy Meter, Flexible Tariff Setting Sts DIN Rail Prepaid Energy Meter and so on.

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Supplier Homepage Product Rogowski Coil Rogowski with an oscilloscope interface Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv

Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv

FOB Price: US $1-50 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1-50/ Piece
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Port: Ningbo, China
Production Capacity: 100000PCS/Month
Payment Terms: L/C, T/T, Western Union, Paypal, Alipay

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Basic Info
  • Model NO.: FRC-420
  • Type: Current Transformer
  • Operation Condition: Indoor
  • Winding Form: Multilayer Honeycomb Type
  • Installation: Active Type
  • Voltage Transformation Principle: Capacitive Type
  • Connector: BNC Connector(Oscilloscope Connector)
  • Output: 300mv
  • Perimeter: 420mm
  • Accuracy: 1.0
  • Could Be Customised: Yes
  • Transport Package: Plastic Bags and Export Foam Box
  • Origin: Liushi, Yueqing, Zhejiang Province, China
  • Application: Electronic, Instrument
  • Phase: Single
  • Usage: Protection, Measurement
  • Insulating Medium: Insulating Paper
  • Magnetic Circuit Structure: Single Stage Type
  • Rpgpwski Coil Model: Frc-420
  • Input Current Range: 1-3000A
  • Other Output: Could Make 1-3V Output
  • Inner Diameter: 125mm
  • Phase Shift: 90 Degrees
  • Trademark: HEYI
  • Specification: CE, ISO, Rohs
  • HS Code: 85045000
Product Description

Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv

Clamp-on Flexible Rogowski coil
 Current Transformer is an AC current transducer for permanent installation. They combine the benefits of a thin, flexible, clip-around Rogowski (sense) coil with a signal conditioner providing accurate, true rms measurement, of voltage or current.

1) AC current probe utility by the Rogowski principle
2) Flexible and lightweight
3) Coil length from 20cm to 100cm
4) Suitable to measure currents from mA to 100kA
5) Easy & quick installation in uninterruptible power line
6) Simple to install in applications where space is limited
7) The size of the Rogowski coil can be specified independently of the primary current 
8) Does not suffer from magnetic saturation




Phase Shift

90 degree

Frequency Range

10Hz to 10MHz


2Hz to 100kHz

Operating temperature

-20C to 70C

Type Selection


Current Range (A)

Voltage output (mV)

Inner diameter(mm)±10%

Perimeter (mm)































Dimensions(mm)FRC-210FRC-350FRC-420FRC-510FRC-600FRC-800                     Image
A Window size((mm)±10%60mm103mm125mm155mm180mm245mm 
B Rogowski Coil O.D.(mm)±10%73mm120mm141mm171mm201mm266mm
C Rogowski Coil Diameter6.5mm8mm8mm8mm10.5mm10.5mm
D Wire Lead Diameter4mm4mm4mm4mm4mm4mm

Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv

1) Very high current monitoring 
2) DC ripple measurement
3) Harmonics and transients monitoring
4) Power monitoring & control systems
5) Applicable in eletronic Watt-hour meter
6) Power quality monitoring
7) Electric furnace 
8) Harmonic management 
9) Relay Protection

The advantages of HEYI Rogowski  

1) Split Design is easy to install rogowski without breaking circuit, moreover its advantages of Flexible, Light make it a great choice to used in  difficult applications.

2) FRC-210 is with BNC Connector which is A connector for coaxial cables.
3) It has different color to choose: REDYELLOW, BLACK.
Flexible Rogowski Coil Rope CT Frc-420 Current Range 1-3000A with Oscilloscope Connector with 300mv

Custom Design   
1) Coil size design, HEYI're willing to customise all different size of Rogowski Coil Window size based on MOQ of 10000Pcs.

2) Coil Thickness design, All Models of Rogowski are situable be customised thicker for high voltage applications.

3) Color optional, RedGreenYellowBlue and Black for choice based on MOQ of 100Pcs. It'll be Black if no color requestment.

4) Output voltage design, HEYI could customise the output within 3V Ac.

About HEYI  

HEYI, established in 1992, is a comprehensive multi-business industry and trade integration of high-tech enterprises. HEYI aim to be a worldwide leader in Energy Management. She focus on research, development and manufacturing split core CT ,current transformer ,Digital smart meter and all related products, which is widely used in Smart Grid Industry all covering distribution, Saving&Protecting&Metering Electicty, and Power System.


1) Question: Is HEYI a factory or trading company?

Bethy (HEYI Sales Manager): We are an SGS recognized OEM/ODM manufacturer factory with export license. We have an outstanding and experienced team made up of "A" player who have a passion for doing something great to create more value for customers world-wide.


2) Question: Where is HEYI's factory located? How can I visit there?

HEYI :HEYI factory, With an ISO90001 certified, located in  Yueqing city , zhejiang Province , P.R. China . It takes about 4 hours from SHANGHAI by train and 45 minute by air. HEYI all staff and i are looking forward to ur visit.


3) Question: Can HEYI offer OEM Service?
Bethy (HEYI Sales Manager): Yes, we have the ability to do OEM / ODM to meet clients' requirements.


4) Question:How does HEYI factory do regarding quality control?
HEYI: Firstly, to test the core performance ,use the wound core tester. Finished product use the instrument transformer calibrator. If find defective If can be rework  ,will be rework ,if not as wasters.

5) Question: How is HEYI's production & sales strength?
Bethy(Sales Manager) & ShiMin (Production Director): HEYI factory current manufacturing capacity for one month is 2000000Pcs, our company has been making split-core current transformers for more than 10 years.
6) Question: Which parts of the CTs does HEYI company purchase from other suppliers(ex. Raw material for the core, pre-molded core material, plastic enclosures, winding wire, lead wire, etc.)?
Shimin (HEYI Production Director):Except for the split core CT ,others core all is make by ourselves, Winding wire and lead wire is by the suppliers.
7) Question:Does HEYI have a Design Engineering capability?
HEYI: Yes ,we have  strong R&D department , have experience and expertise in designing custom styles of CTs.
8) Question: What products have HEYI designed?
Bethy(Sales Manager): All the Mini CTs are designed by our engineer, Mr. Huang. HEYI own 90% patent of the design.

Our Commitment                                                                                                               
BETTER PRICE than other suppliers
 for you because of Factory Direct Sale;

BETTER QUALITY than before caused by our 10+ years experience;

STOCK IN TRADE awlays own to our Fast & Professional production line;

FAST DELIVERY as awlays made by our GROUP's Enthusiam;

TIMING REPLY in 24 hours all about our TEAM's Passion & Patience.


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