|  DuraRack Specifications  |  
  | Enclosure Material |  Carbon Steel |  
  | Enclosure Protection |  IP65 water and dust proven (outdoor) |  
  | Enclosure Color |  White |  
  | Dimensions [W x H x D] |  29.29 x 41.34 x 18.03 in (744 x 1050 x 458 mm) |  
  | Enclosure Weight |  59.6 kg / 153.2 lbs |  
  | Maximum Battery Units |  4 eFlex 5.4 |  
  | Storage Capacity Range |  5.4kWh – 21.6 kWh per unit |  
  | Max. Storage Capacity |  81 kWh (4 unites in parallel) |  
  | Knockout Size |  1 inch & 2 inch |  
  | Positive and Negative Battery Busbars |  2 x 4 points; M8 (5/16) Terminal Rings |  
  | Positive and Negative Busbars to Inveter |  2 points; m10 (3/8) Terminal Rings |  
  | Battery Cables |  4 sets of |  
  | Terminal Torque |  7.0 – 7.7 Nm (5.1 – 5.7 ft-lb) |  
  | Enclosure Warranty |  3 Years |  
  | Certifications |  UL9540, UL9540A, UL1973, CEC, SGIP |