Rails, clamp sets and roof attachment parts are sold separately below.
Rail Sets
Rails are sold in pairs, as rail sets, offered in two lengths to simplify ordering. The 122-inch rail set accommodates a single row of 3 modules in the 200-watt range. The 162-inch rail set will accommodate four modules in the 200 watt range. The chart below shows which rails and how many splice kits to use based on the nuber of modules to be installed in a single row. All of the 200 watt modules in this catalog are 39.5 inches wide or less. If you are installing 5 module rows, each row will use one 122 inch rail set and half of a 162 inch rail set. For other module widths, calculate rail length for your installation and remember to add 1/2" between modules for mid clamp spacing. These light-weight aluminum rails can be cut with a chop saw or circular saw with a carbide blade, a saber saw with a metal cutting blade, or a hack saw.
Standard Top-Mount Clamp sets for fastening the PV modules to the rail
For each row of modules we suggest you buy a 3-module clamp set plus two additional mid clamps for each additional module in the row. Choose your clamps based, first, on the module frame thickness and then on the quantity of modules to install. SnapNrack clamps are available individually, in bulk packs, and in a 3-module clamp set. You can also buy bulk end clamps and mid clamps below.
Example 1: Evergreen ES-A-200 modules have a 1.8-inch thick frame. Eight (8) ES-A-200 modules require a 1.8-inch 3-module set (item code 015-09929) and 10 mid clamps (item code 015-09903, or one 12-pack item code 015-09904).
Example 2: REC 210-230 AE-US modules have a 1.69-inch thick frame. Seven (7) REC215 AE-US modules require a 1.69-inch 3-module set and 8 mid clamps.
SnapNrack Bulk SnapNrack Module Top Clamps
Order bulk clamps from the table below. For each row of modules, you will need 2 mid-clamps for each space between two modules in the row, and 4 end-clamps. For example, a four-module row would need 6 mid clamps. Use end clamps that match the module frame thickness or use Universal End Clamps for any module with a typical internal L-frame.
