What type of outdoor enclosure is permitted for hose-down applications?

• A. Type 1
• B. Type 3R
• C. Type 4
• D. Type 6

Answer: (C)

When an outdoor enclosure must tolerate hose-down cleaning, the key requirement is that it stays watertight against water sprayed from a hose while standing up to outdoor weather. The rating designed for that scenario is a weatherproof, hose-jet–protected enclosure that can be used outdoors. Type 4 enclosures fit this need: they’re weatherproof and watertight, protecting the interior from rain, windblown water, and hose-directed streams, which makes them suitable for outdoor washdown use. A Type 3R enclosure only handles rain and outdoor weather but isn’t rated for direct hose spray, and a more heavy-duty option would be more than what’s typically required for standard hose-downs.