The Ingress Protection (IP) rating of a home EV charger is a crucial factor to consider when making a purchase. It indicates the level of protection the charger has against dust, water, and other environmental factors. A higher IP rating signifies greater protection. If you are used to charging your electric car outdoors, the IP protection level is the most important factor you need to consider for safe charging.
What is the IP ratings?
IP ratings, or Ingress Protection ratings, serve as a measure of a device’s resistance to the infiltration of external elements, including dust, dirt, and moisture. Developed by the International Electrotechnical Commission (IEC), this rating system has become a global standard for evaluating the robustness and reliability of electrical equipment. Comprising two numerical values, the IP rating provides a comprehensive assessment of a device’s protective capabilities.
Common IP ratings for home EV chargers:
IP22: Protected against solid objects larger than 12.5 mm and dripping water. Suitable for indoor use.
IP44: Protected against solid objects larger than 1 mm and splashing water. Suitable for outdoor use, but avoid direct rain or water spray.
IP54: Protected against dust and splashing water. Suitable for outdoor use in most weather conditions.
IP65: Protected against dust and water jets. Suitable for outdoor use in harsh environments.
What does the number stands for?
The first number in the IP rating signifies the level of defense against solid objects, such as dust and debris. A higher first digit indicates increased protection against these particulates. On the other hand, the second number denotes the device’s resistance to liquids, with a higher value indicating a higher degree of protection against moisture.
In conclusion, the IP rating system offers a clear and standardized way to communicate the durability and dependability of electronic devices, allowing consumers and industry professionals to make informed decisions based on the specific environmental conditions in which the device will be used. The principle is simple: the higher the IP rating, the more resilient the device is to external elements, providing users with confidence in its performance and longevity.
(IP rating from IEC)
Ensuring the resilience of Electric Vehicle (EV) charging stations is paramount, with IP ratings playing a pivotal role in safeguarding these crucial infrastructures. The significance of these ratings becomes particularly pronounced due to the outdoor placement of charging stations, exposing them to the unpredictable elements of nature such as rain, snow, and adverse weather conditions. The absence of adequate protection against moisture can not only compromise the functionality of the charging station but also pose serious safety risks.
When choosing an IP rating for your home EV charger, consider the following factors:
Installation location: Will the charger be installed indoors or outdoors?
Consider the scenario where water infiltrates a Home EV charging station – a seemingly innocuous occurrence that can have severe consequences. The intrusion of water has the potential to induce electrical shorts and other malfunctions, culminating in hazardous situations like fires or electrocution. Beyond the immediate safety concerns, the insidious impact of moisture extends to the corrosion and degradation of vital components within the charging station. This not only jeopardizes the station’s operational efficiency but also entails the prospect of costly repairs or, in extreme cases, complete replacements.
Indoor Installation:
If your charger is installed in a garage or other dry indoor location, an IP22 rating is typically sufficient. This rating protects against the entry of large solid objects and can withstand vertically dripping liquids.
Outdoor Installation:
If your charger is installed outdoors, such as in a carport or open parking space, it is recommended to choose an IP44 or higher rating. An IP44 rating protects against solid objects larger than 1mm and can withstand water splashing from all directions. An IP54 rating offers better dust protection and is suitable for dusty environments.
Local climate: What are the typical weather conditions in your area?
Dry Climate:
In dry, low-rainfall areas, an IP44 rating is usually sufficient.
Rainy or Humid Climate:
If you live in a rainy or humid area, it is recommended to choose an IP54 or higher rating. These ratings provide better protection against rain and moisture damage to the charger.
Usage frequency: How often will you be using the charger?
Frequent Use:
If you use the charger multiple times daily or weekly, it is recommended to choose a product with a higher protection rating to ensure long-term stable operation.
Occasional Use:
If you only use the charger occasionally, an IP44 rating is usually sufficient.
In the quest for sustainable and reliable electric mobility, addressing the vulnerability of EV charging stations to environmental factors is indispensable. Recognizing the pivotal role played by IP ratings in mitigating risks, the integration of advanced protective measures becomes a cornerstone in ensuring the longevity and safety of these vital charging infrastructures. As the global transition towards electric vehicles accelerates, the resilience of charging stations in the face of diverse weather conditions emerges as a crucial consideration for the seamless adoption of eco-friendly transportation solutions.
(Ampax commercial EV charging station from Injet New Energy)
Selecting EV charging stations with a high IP rating is crucial. We advise a minimum IP54 for outdoor use, shielding against dust and rain. In harsh conditions like heavy snow or strong winds, opt for IP65 or IP67.
Injet New Energy’s home and commercial AC chargers(Swift/Sonic/The Cube) utilize the higher IP65 rating currently available on the market. IP65 offers robust defense against dust, reducing particles entering equipment. It also protects against water jets from any direction, making it ideal for damp environments. To maintain safety and reliability in all weather, it’s essential to regularly clean charging stations. Preventing debris like dirt, leaves, or snow from obstructing ventilation ensures optimal performance, especially during inclement weather.