• Product Details
  • Company Profile

Electrical Features

Type(wave form of the earth leakage sensed)B Type RCCB
Rated current In25A ,32A ,40A,63A, 80A,100A
Poles2Pole and 4Pole
Rated voltage Ue2Pole: 230V / 240V , 4Pole: 400V / 415V
Insulation voltage Ui500V
Rated frequency50/60Hz
Rated residual operation current(I n)30mA,100mA,300mA
Rated residual making and breaking capacity (I m)500(In=2540A) 630(In=63A)
Short-circuit current Inc= I c10000A
SCPD fuse10000
Break time under I n≤0.1s
Rated impulse withstand voltage(1.5/50) Uimp4000V
Dielectric test voltage at ind.Freq. for 1min2.5kV
Electrical life2,000 Cycles
Mechanical life4,000 Cycles


Contact position indicatorYes
Protection degreeIP20
Ambient temperature(with daily average≤35°C)-5°C~+40°C
Storage temperature-25°C~+70°C
Terminal connection typeCable/Pin-type busbar/U-type busbar
Terminal size top/bottom for cable25mm2  18-3AWG
Terminal size top/bottom for busbar25mm2  18-3AWG
Tightening torque2.5Nm  22In-lbs
MountingOn DIN rail EN60715(35mm) by means of fast clip device
ConnectionFrom top and bottom

 Tripping Current Range

Lagging AngleI n>0.01AI n≤0.01A
0.35I n≤I≤1.4I n0.35I n≤I ≤2I n
90°0.25I n≤I≤1.4I n0.25I n≤I ≤2I n
135°0.11I n≤I≤1.4I n0.11I n≤I ≤2In
Detectable wave formPulsating direct current sensitiveSurge current proof
B class Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents,alternating residual sinusoidal currents up to 1000Hz,pulsating direct residual currents and for smooth direct residual currents,whether applied suddenly or increasing slowly.RCD.jpgThey react to AC and pulsating DC fault current which reach 0 or almost 0 within one time period of the mains frequency.rccb.jpgRCCB’s surge capacity. Not tripping at standardized 8/20 υs surge-current waves VDE 0432 Part 2 with surge current values of up to 250A.

Circuit Diagram Type B RCD.jpg

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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