Tripp Lite SmartRack Industrial Enclosure, NEMA 3R, Wall Mount, Metal, Locking, Fan With Thermal Switch, 23 in. Depth, 12U, Red

The Tripp Lite SRN3RR12U is a 12U wall-mount enclosure that protects sensitive rack equipment in places where dust, moisture, and temperature swings are part of daily life. It meets the NEMA 3R standard, so rain, sleet, and snow stay outside while your switches, servers, or patch panels stay dry inside. A powder-coated steel housing adds the strength and corrosion resistance you need for factories, warehouses, outdoor kiosks, or construction trailers, and the bright red finish makes the cabinet easy to spot when service calls come up.

Equipment cooling is handled automatically. Two built-in fans switch on at 86°F, pulling fresh air through the cabinet and venting excess heat before it threatens uptime. Because the fans engage only when temperatures rise, they help extend fan life and reduce unnecessary noise in quieter areas such as utility rooms or retail back offices.

Security is just as important as environmental protection. A front door with a keyed lock discourages tampering and theft, so you can mount the cabinet in public corridors, loading docks, or warehouse aisles with confidence. Inside, the 23-inch depth accommodates most standard rack devices, and a 200-pound load capacity gives you flexibility to mix heavier servers with lighter networking gear.

Installation is straightforward. The enclosure arrives fully assembled, ready to lift onto a wall bracket or strut channel. By moving equipment off the floor, you free up valuable space and reduce the risk of forklift damage or accidental kicks. Whether you are expanding wireless coverage in a large campus, adding controllers to an automated production line, or protecting a small server stack in a remote building, the SRN3RR12U provides a durable, organized, and secure home for your gear.

• 12U rack capacity with 23-inch equipment depth
• NEMA 3R rating keeps out rain, sleet, and snow
• Lockable front door with included keys helps prevent unauthorized access
• Dual fans activate at 86°F through a built-in thermal switch for automatic cooling
• Ships fully assembled for quick wall mounting
• Supports up to 200 pounds of equipment
• Powder-coated steel construction for strength and corrosion resistance
• Backed by a 5-year limited warranty from Tripp Lite