• Product Details
  • Company Profile

Type B RCCBs, in addition to normal AC, can detect high frequency AC and pure DC earth leakage currents. Reducing the risk of fire and/or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB.

● Control electric circuits.
● Protect people against indirect contacts and additionalprotection against direct contacts.
● Protect installations against fire hazard due to insulation faults.

Technical Data


1. Provides protection against earth fault/leakage current and function of isolation.

2. High short-circuit current withstand capacity.

3. Applicable to terminal and pin/fork type busbar connection.

4. Equipped with finger protected connection terminals.

5. Automatically disconnect the circuit when earth fault/leakage current occurs and exceeds the rated sensitivity.

6. Independent of power supply and line voltage, and free from external interference, voltage fluctuation.


Residual Current Circuit Breaker is applicable to electric circuits with rated voltage 230/400V AC, frequency 50/60Hz and rated current up to 80Amp.

1. RCCB with rated sensitivity up to 30mA could be used as supplementary protecting device in case other protecting device fails its protection against electric shock.
2. RCCB designed for household installation and other similar application, is for non-professional operation,  and no maintenance is required.
3. RCCB provides no protection against electric shock resulted from direct contacts of both protected lines,or  leakage current between these two lines.
4. Particular devices such as surge protective devices,surge arrester etc are recommended to install at upstream line to RCCB as precaution against potential surge voltage and current occurring at its power input side.
5. Satisfying conditions and applications as mentioned above, RCCB with °∞ON-OFF°±  indicating device is considered suitable for isolation function.

Item    Type B RCD  /  Type B RCCB    

Product Model    EKL6-100B    

Type    B Type    

Rated Current    16A , 25A , 32A , 40A , 63A , 80A ,100A    

Poles    2Pole ( 1P+N ),   4Pole  ( 3P+N )    

Rated voltage Ue    2Pole:  240V ~,   4Pole:  415V~    

Insulation Voltage    500V    

Rated frequency    50/60Hz    

Rated residual operation current(I n)    30mA  , 100mA  , 300mA    

Short-circuit current Inc= I c    10000A    

SCPD fuse    10000    

Break time under I n    ≤0.1s    

Dielectric test voltage at ind.Freq. for 1min    2.5kV    

Electrical life    2,000 Cycles    

Mechanical life    4,000 Cycles    

Protection Degree    IP20    

Ambient temperature    -5℃ upto +40℃    

Storage temperature    -25℃ upto +70℃    

Terminal connection type    Cable/Pin type busbar    

U-type busbar    

Terminal size top/bottom for cable    25mm² 18-3AWG    

Terminal size top/bottom for busbar    25mm² 18-3AWG    

Tightening torque    2.5Nm 22In-Ibs    

Mounting    On DIN rail EN60715(35mm)    

by means of fast clip device    

Connection    From top and bottom     

Standard     IEC 61008-1:2010   EN 61008-1:2012    

 IEC 62423:2009      EN 62423:2012    

Basic Information
  • Year Established
  • Business Type
  • Country / Region
  • Main Industry
  • Main Products
    EV charger
  • Enterprise Legal Person
    Wilson Ma
  • Total Employees
  • Annual Output Value
  • Export Market
    Chinese Mainland,European Union
  • Cooperated Customers
Company Profile
Hengyi Mechanical&Electrical Engineering Co., Ltd. is an enterprise specializing in Research & Development of Electric Vehicle Charging products. The company has a strong R&D team and the team director conducted a visiting scholar study at the University of Michigan Dearborn from 2011 to 2012. And the company also has a complete production supporting system integrating mold design, manufacturing and injection molding.

We can provide customized services to meet different needs from customers,
in addition to our regular standard products.

We constantly strive to provide each customer with better products along with customized services. We are committed to become the most professional and efficient manufacturer in the field of EV charging. Now our products adapt to vast majority of vehical models around the world and we will continously update to provide with safe and efficient EV charging products.

Hengyi provides customers with safe, reliable and intelligent EV charging products and components, including EV plug, socket, connector, charger and high-power DC charging station. Our connectors are CE/ UL/ TUV/ CB certified and all products are well sold in Europe, the United States and most developed countries.

Our R&D team director obtains Ph.D. of studying in the United States and has 7 years of experience in R&D for EV charging. So we are capable to provide customers not only with reliable products, but also our complete solutions from design to manufacturing, so that our customers' design and procurement work could be more efficient!

Our eternal pursuit is to provide high quality and best cost-effective products.

We would like to express sincere thanks to our loyalty clients and hope more new customers will join with us.
Please feel free to contact us for more information.

Our strong R&D team holds many patents. We believe that products and services are always the two key basements for company's long-term development. Therefore, high-quality and best cost-effective products with perfect service system maintains us a leading position in this industry. We will
ensure good performance and quality of our products and bring best experience effect to our customers by continously increasing investment on product R&D.

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There are currently 9.5 million electric vehicle charging facilities in the world, of which 2.5 million are public charging facilities. By 2025, the global electric vehicle charging facilities

will increase to about 50 million, including about 10 million public charging facilities.

They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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