Customized outdoor rain-proof electric vehicle charging distribution box: 16 sizes are available, providing flexible solutions for charging pile matching

2026-04-22 0 Leave me a message

How to design distribution box for outdoor electric vehicle charging pile？

With the accelerated deployment of electric vehicle charging facilities worldwide, the demand for outdoor distribution boxes to support charging piles is continuously increasing. Unlike indoor distribution boxes, outdoor distribution boxes for charging piles need to meet multiple requirements such as rainproofing, dustproofing, heat dissipation, observation, and safety protection.

According to the actual application scenarios of Korean customers, China's Ouyue Electric Co., Ltd. has developed a customized outdoor rainproof electric vehicle charging distribution box series, which includes 16 different sizes and can be adapted to charging piles of different powers and configurations. The following is an introduction to one of the typical sizes.

Main structural features

Position of components	Description of design	Function of function
Top of box	Rain proof eaves design, front extension eaves with dripping edge	Prevent rainwater from infiltrating into the door seam and protect the internal electrical components
Front of box	Equipped with plane lock (AB waterproof series), lock body flush with the door plate	Anti-theft and anti-pry, with sealing tape to improve waterproof level
Front of box	Customized nameplate with the contents of "Electric Vehicle Charging and Distribution Box"	Product identification is clear, easy to identify and maintain on site
Front of box	Square glass observation window, double toughened glass	Observe the status of internal indicators, displays, or electronic components without opening the door
Both sides of the box	Louver type vent	Form convection heat dissipation channel, reduce the temperature in the box
Bottom of box	Reserve open holes for charging pile interface	It is convenient to introduce and lead the power line and signal line of the charging pile, and it is sealed and waterproof

Internal layout: reserved installation location

According to customer needs, the distribution box has been pre-planned and reserved the installation position of various electrical components required by the electric vehicle charging pile. Users can install the following components according to the actual configuration:

Inlet main switch (plastic case circuit breaker) installation position, with standard DIN guide rail
Special fixed bracket for charging module
Ac contacter and smart meter mounting position (support rail or bottom plate fixation)
Surge protector (SPD, Type 2 lightning protection) installation bit
Grounded copper bar and zero terminal bar
Reserve bits for auxiliary power supply and PLC communication unit

Note: The interior of the box adopts modular partition design, and each area is separated by wiring groove, so that the line path is clear, which is convenient for on-site wiring and later maintenance. All reserved positions are planned according to standard electrical spacing and heat dissipation requirements to ensure safe operation after installation of components.

Application scenario of outdoor rain-proof electric vehicle charging and distribution box

This series of distribution box is widely used for:

Underground garage and ground charging pile in residential area
Public charging stations, charging piles in high-speed service areas
Shopping malls, office building parking lot charging facilities
Special charging pile for bus station and logistics park

Ou Yue source factory customized service advantages

Sixteen sizes flexible matching: the same appearance style, different volume, adapt to the diversified scene from household slow filling to public fast filling pile.
Whole process customization: from box size, internal reserved layout to color, nameplate content can be customized on demand.
Fast proofing: sample delivery time is 5-7 working days, supporting overseas customers to confirm drawings remotely.
Batch delivery: The delivery capacity is sufficient to meet all kinds of large-scale procurement needs.

lectric Co., Ltd. focuses on the manufacturing of metal electrical boxes for more than ten years, and has accumulated rich customization experience in the field of electric vehicle charging and distribution boxes. The company is equipped with laser cutting, CNC bending, automatic spraying and assembly lines to support the whole process of production from drawings to finished products.

With professional technical solutions and reliable delivery quality, Ouyue Electric provides long-term and stable protection for your charging facilities.Welcome to consult and purchase.

More customized cases please click here