Fortress Durarack (IP65 Outdoor Rated Enclosure)

Heavy-Duty Quad-Module Protection

The Fortress Durarack (IP65 Outdoor Rated Enclosure) is a heavy-duty battery cabinet engineered for indoor and outdoor energy storage installations. Designed to house up to four Fortress Power eFlex 5.4 kWh lithium battery modules (5.4 to 21.6 kWh storage capacity per rack), the fortress durarack protects batteries against harsh environmental elements while expanding up to 81 kWh across multi-unit system configurations.

Constructed from durable white carbon steel, this IP65 outdoor-rated enclosure features 2 integrated busbars with 4 connection points (M8 battery terminals and M10 inverter terminals), 4 complete sets of positive and negative battery cables, and 7.0 to 7.7 Nm terminal torque specs. Measuring 29.29 x 41.34 x 18.03 inches and weighing 190 lbs empty, it provides a clean, pre-wired foundation for residential solar storage and commercial backup power arrays.

Technical Specifications & Cabinet Capabilities for the DuraRack

• Brand / Manufacturer: Fortress Power
• Dimensions (W × H × D): 29.29 × 41.34 × 18.03 in
• Enclosure Weight: 190 lb
• Maximum Batteries: 4 × eFlex 5.4 kWh
• Storage Capacity per Unit: 5.4–21.6 kWh
• Maximum System Capacity: Up to 81 kWh with the specified multi-unit configuration
• Material: Carbon steel
• Color: White
• Busbars: 2 × 4 connection points; M8 terminals
• Inverter Busbar Connections: M10 terminals
• Battery Cables: 4 sets
• Terminal Torque: 7.0–7.7 Nm