What Size Cable for EV Charger to Use?
With the popularization of EV (Electrical Vehicles), the construction of related facilities is also increased in recent years, such as EV charging piles, EV chargers, EV charging stations. Many purchasers and buyers have been asking questions about the type and size of cable for EV chargers. For example:
- What size cable for EV charger to use?
- How many cores of EV charging cable should I buy?
In this article, I will address these common questions and provide a visual guide to help you choose the right cable.
Key Factors to Consider
The main points to consider when choosing the suitable cable for EV charging gun are as follows:
- Region
- Current Type
- Maximum Power
- Maximum Amps
Visual Table of Cable Specifications
AC Current
| Region | Phase | Power (KW) | Current (A) | Cable Specification |
|---|---|---|---|---|
| Europe | 1Phase | 4.6 | 20 | 3×2.5 + signal core |
| 1Phase | 13.8 | 20 | 5×2.5 + signal core | |
| 1Phase | 7.4 | 32 | 3×6 + signal core | |
| 1Phase | 22 | 32 | 5×6 + signal core | |
| 1Phase | 14.5 | 63 | 3×16 + signal core | |
| 1Phase | 43.5 | 63 | 5×16 + signal core | |
| America | 1Phase | 3 | 10 | 3×16 AWG + signal core |
| 1Phase | 4.5 | 15 | 3×14 AWG + signal core | |
| Japan | 1Phase | 12 | 20 | 3×2.5 + signal core |
| 1Phase | 18 | 30 | 3×5.3 + signal core | |
| 1Phase | 21 | 35 | 3×6 + signal core | |
| China | 1Phase | 4.6 | 20 | 3×2.5 + signal core |
| 1Phase | 7.4 | 32 | 3×6 + signal core | |
| 3Phase | 13.8 | 20 | 5×2.5 + signal core | |
| 3Phase | 22 | 32 | 5×6 + signal core |
DC Current
| Region | Power (KW) | Current (A) | Cable Specification |
|---|---|---|---|
| Europe | 150 | 150 | 2×50 + 1×25 + signal core |
| America | 80 | 150 | 2×1 AWG + 1×3 AWG + signal core |
| China | 50 | 63 | 3×16 + signal core |
| 150 | 150 | 2×50 + 1×25 + signal core |
Signal Core Size
| Signal Core Specification |
|---|
| 0.75mm |
| 0.5mm |
What Size Cable for EV Charger to Use?
To answer the title question directly:
- A 20A current corresponds to a 2.5mm cable.
- A 32A current corresponds to a 6mm cable.
- A 63A current corresponds to a 16mm cable.
Additional Notes
The table above covers only the more common ev charging types. If your requirements differ or you need a customized charging station, I highly recommend consulting a professional electrical engineer.
For those interested in learning about the sheath materials for EV charging cables, you can refer to my other article on this topic.
If you need to purchase EV charging cables or have further questions, feel free to visit our E-Mobility page or contact us. We’re always happy to provide tailored solutions for your needs.
