Tripp Lite SmartRack Industrial Enclosure, NEMA 3R, Wall Mount, Metal, Locking, Hinged Back, Fan With Thermal Switch, 28 in. Depth, 12U, Gray

The Tripp Lite SRN3RG12US is a 12U wall-mount enclosure designed for industrial settings where network, security, or control equipment must remain protected from dust, moisture, and temperature swings. With a depth of 28 inches and a load capacity of 200 pounds, it accommodates full-sized switches, patch panels, servers, and power units while keeping them off the floor and out of harm’s way.

The enclosure is built from steel and finished with a durable powder coat that resists corrosion. A front door that locks with the supplied keys helps prevent tampering, and the door seals tightly to meet the NEMA 3R standard for protection against rain, sleet, snow, and wind-blown dust.

Inside, two fans start automatically when the internal temperature reaches 86°F (30°C). This self-managed airflow reduces the risk of heat-related downtime without requiring a separate control system.

Installation and service are straightforward. The cabinet mounts to a wall or a sturdy post, and a hinged rear section swings open so you can reach cables and connectors from behind without removing mounted gear.

The unit suits factory floors, warehouses, utility substations, outdoor kiosks, and any location where space is tight but durable protection is critical. Tripp Lite includes a five-year limited warranty for added peace of mind.

• 12U capacity holds equipment up to 28 inches deep
• NEMA 3R enclosure shields gear from water, dust, and ice
• Steel construction with a locking front door and included keys
• Two fans that activate automatically at 86°F to manage heat
• Hinged rear section for easy access during installation and maintenance
• Supports up to 200 pounds of rack-mounted equipment
• Five-year limited warranty from Tripp Lite