Tripp Lite SmartRack Industrial Enclosure, NEMA 3R, Wall Mount, Metal, Locking, Hinged Back, Fan With Thermal Switch, 28 in. Depth, 9U, Gray

Overview

The Tripp Lite SRN3RG9US is a 9U wall-mount industrial enclosure designed to securely house 19-inch rack equipment up to 28 inches deep. Constructed from durable steel with a powder-coated finish, it offers robust protection in harsh environments. Its NEMA 3R rating ensures reliable defense against rain, sleet, snow, and dirt, making it suitable for both indoor and outdoor installations where equipment safety is critical.

Security is enhanced by a lockable door with keys, preventing unauthorized access. The hinged back panel simplifies installation and maintenance by allowing easy access to cables and devices without removing the entire enclosure. Two built-in fans with a thermal switch activate automatically at 86°F to maintain optimal operating temperatures, ensuring your equipment runs smoothly.

Key features

• Wall-mount design that saves floor space while securely housing rack equipment
• NEMA 3R rating provides weatherproof protection against rain, snow, and dust
• Lockable door with included keys to safeguard sensitive equipment from unauthorized access
• Hinged back panel allows quick and convenient access to cables and hardware for maintenance
• Built-in fans with thermal switch activate at 86°F to prevent overheating and extend equipment life
• Durable steel construction with powder-coated finish resists corrosion and physical damage
• Pre-assembled for faster installation and immediate deployment in industrial or outdoor settings
• Supports rack equipment up to 28 inches deep, accommodating a wide range of devices

Key specs

• Rack units: 9U
• Mounting type: Wall mount
• Depth capacity: 28 inches
• Material: Steel with powder-coated finish
• Enclosure rating: NEMA 3R (weatherproof)
• Cooling: Two built-in fans with thermal switch activating at 86°F
• Security: Lockable door with keys included
• Color: Gray
• Warranty: 5-year limited

Connectivity and compatibility

This enclosure is designed to fit standard 19-inch rack-mount equipment commonly used in industrial, telecom, and networking environments. Its 9U height and 28-inch depth accommodate a variety of servers, switches, patch panels, and other rack devices. The wall-mount design helps integrate the enclosure into tight spaces or outdoor installations where floor space is limited.

Ideal uses and environments

The SRN3RG9US enclosure is well suited for industrial facilities, outdoor telecom sites, and any location requiring secure, weather-resistant housing for rack-mounted electronics. It works effectively in environments exposed to harsh weather conditions or dust, providing peace of mind that your equipment remains protected and cool. This model is a strong choice for IT professionals and facility managers who need a reliable, easy-to-maintain enclosure that balances security, ventilation, and accessibility.