IP67, -40°C, and Automotive Validation Explained
IP67, -40°C, and automotive validation explained for OBCs: what IP ratings, temperature, vibration, and salt spray really mean for commercial EVs. Read more.
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FAQ
Is IP67 enough for an agricultural EV?
For dust and temporary immersion, IP67 is a strong rating. For agricultural use, also check chemical resistance, pressure washing, and mud on the fan intake and connectors. Those are not covered by IP67 alone.
Can an IP67 OBC be mounted underneath the vehicle?
It can be, if the mounting, airflow, and connector protection are designed for that location. Underbody mounting increases exposure to water, mud, and stone impact. Confirm the mounting, the connector IP rating, and the vibration test for that orientation with the engineering team.
What happens if the OBC gets hotter than +55°C?
Confirm the derating or shutdown behaviour for the specific model. Do not assume it will continue at full power. The derating curve is the document that answers this question.
Does 48-hour salt spray mean the unit will last 10 years by the sea?
No. Salt spray is a comparative test, not a lifetime prediction. It shows relative corrosion resistance. Lifetime in a coastal environment depends on many other factors, including washing, coating, and maintenance.
What documents should I ask for?
Ask for a test summary or report that lists, for the specific model: IP test standard and result, temperature range and derating curve, vibration standard and result, salt spray duration and result, and the EMC and safety standards. If a full report is not available, ask for a written summary with the standard numbers.
Related Echelon Products
See the full range on the products page.
Next Step
Request the validation summary for the specific model you are considering — IP, temperature derating, vibration, salt spray, and EMC — and compare it to your vehicle environment: mounting location, highest and lowest temperatures, vibration spectrum, and exposure to water, dust, and chemicals. Any gap is an open item for the engineering team, not a detail to assume away.
To start, share your vehicle and battery requirements through our contact page, and see how a custom programme is scoped on our OEM/ODM page. Before requesting a quotation, the OBC RFQ checklist lists the inputs that let Echelon quote accurately in one pass.
About Echelon Charger
Echelon Energy Technology specializes in onboard chargers, DC/DC converters, and integrated EV power solutions for commercial and specialty electric vehicles.
For technical discussions, product selection, or OEM/ODM cooperation:
Email: nancy@tici-energy.com
WhatsApp: +86 18114665311
