Shanghai Hengyi Mechanical and Electrical Engineering Co., Ltd. has been strengthening the development of new products and has gained promising results. It's designed out of the needs of our customers. In this technology-driven society, 2021 focus on improving R&D strength and keep developing new technologies so as to increase our competitiveness in the industry. We aim to become one of the leading enterprises in the market.

Place of Origin:Shanghai, ChinaBrand Name:Hengyi
Model Number:Type EV 40ABreaking Capacity:RXBO
Rated Voltage:240Rated Current:32
Type:RCBO, Type EV(A+DC6mA)Number of Pole:2
Pole:1P+NCertificate:TUV CE
Style:RCBORated current:20/25/32/40 optional
Standard:IEC/EN 61009-1 , IEC 62955Application:Mode 3 charging stations
Packing:Individual carton packagingElectrical Life(Time):≥20000

Product Description
Rated voltage Un
230VAC , 50Hz
IP + N
Rated current(A)
Tripping characteristic
6000ARated short-circuit capacity  Icn
6000 A
Rated residual making and breaking capacity  I△m
3000 A
Rated Insulation voltage UI
250 V
Rated impulse withstand voltage  Uimp
4 kV
Protection class
Rated residual operating current  l△n
RCB0, IEC/EN 61009-1           30mA , Type  A
Rated residual direct operating current  l△dc
RDC-PD, IEC  62955                               6m  A
Min. 2000
Ambient temperature
-25~55 °C
Connection capacity for terminal box
Reference standard
EN/IEC  61009.1, IEC  62955
Company Profile
Hengyi Mechanical&Electrical Engineering 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.
Q1:what is this?
A:It's an EV type residual current circuit breaker, providing leakage protection for Mode 3 charging and complying with the requirements of the relevant standards for leakage protection in the European market for charging posts (IEC 61851-1 and IEC 60364-7-22)

Q2:How does this work?
A:Smoothed DC residual currents can occur in certain power electronics applications. Smoothed DC residual currents can prevent conventional AC-type and A-type residual current protection devices (RCDs) from functioning properly, with RCD inactivity or normal operation malfunction in the event of an electric shock. EV charging is a typical load that can generate a smooth DC residual current component and for effective personal safety protection, the IEC 62955 standard provides for the protection of possible smooth DC residual currents from EV charging. It effectively eliminates the loophole of AC 30mA residual current protection caused by smooth DC residual components and effectively disconnects the conductive part, making it far safer and more reliable than the combination of residual current monitoring module and relay on the charging post board.
Q3:Why do AC charging posts generate smooth residual currents?
A:The main reason is that the insulation of that part of the DC/DC inside the OBC is broken, which can be caused by driving the car for a long time, bumps and bumps, careless maintenance, etc., and then smooth DC residual current will be generated.

Q4:Why choose it?
A:This product combines 6mA DC monitoring, detection and 30mA Type A residual current protection in one device. It offers the following advantages: Safe and reliable Integrates multiple protection against short circuit, overload, residual current (sinusoidal AC, pulsating DC and smooth DC faults) in one device; the neutral pole can be opened and closed to cut off both the fire and zero wires in the event of a fault, making the charging process safer. Protection upgrade The EV models are fully compliant with both IEC 62955 and IEC 61009-1 standards for residual current protection products Flexible and intelligent Supports both top-in and bottom-in installation methods, easily coping with bi-directional current flow; there is also an optional electric operating mechanism and communication module to help intelligent operation and maintenance of charging facilities. Compact With a compact design of 36mm width (two standard modules) and 80mm length, it is the world's smallest EV/B type residual current circuit breaker, significantly reducing the space required for installation.

Q5:How is it packaged?
A:1pcs/box, package size 120*80*40mm

Q6:What is your terms of delivery?

Q7:What is your terms of payment?
A:We accept all methods of payment: paypal, T/T, credit card, assurance, West Union... Please contact us for more details.
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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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