PROTECTION RATING GUIDE
A complete guide to understanding IP65 ingress protection — what the digits mean, how testing works, and how to choose the right IP rating for your industrial computing environment.
IP65 means an enclosure is completely dust-tight and can withstand low-pressure water jets from any direction.
For industrial PCs, it is the most common protection level, making it ideal for factory floors, warehouses, food processing lines, and light outdoor installations. If you require submersion protection, look at IP67 instead.
The IP (Ingress Protection) rating system is defined by the International Electrotechnical Commission (IEC) in standard IEC 60529. It uses a two-digit code to classify the level of protection an enclosure provides against solid objects (including dust) and liquids.
Completely dust-tight
Low-pressure water jets
Factory floors, warehouses, outdoor cabinets
Completely dust-tight
Immersion (1m for 30min)
Flood-prone areas, vehicle wash bays openly exposed
Completely dust-tight
Continuous submersion
Underwater operations, deep well monitoring
CNC machine shops, metal fabrication, and assembly lines generate fine metal particles, coolant mist, and oil vapors. IP65 panel PCs mounted on machines remain operational despite constant particle exposure.
Flour dust and daily washdowns demand at minimum IP65. Often combined with stainless steel housings for hygiene compliance.
Protects against packaging dust and forklift exhaust. IP65 box PCs survive transition zones between docks and cold storage.
Coal dust and high-pressure hose cleaning are standard. IP65 is the absolute baseline for control panels here.
Parking systems & EV stations. IP65 protects against driving rain.
Not all "IP65" claims are equal. Self-declared ratings lack accountability. Use this 4-step framework to verify authenticity.
Ask for the IEC 60529 test report from an accredited lab (e.g., TÜV, SGS). Ensure the report references your specific product model.
Verify if IP65 applies to the entire enclosure or just the front pannel. 'IP65 front, IP20 rear' is common for panel PCs but unsuitable for freestanding deployment.
IP65 means nothing if standard USB or RJ45 ports are exposed. Look for M12 waterproof circular connectors or sealed rubber plugs.
The weakest point is always where cables enter. Ensure the manufacturer uses IP-rated cable glands (PG or metric thread).
Expert answers to common IP65 deployment questions.
