Kinetic Rapid One Rail KRAPID1

$44.48$87.57

Kinetic Solar Rapid One Rail, KRAPID1-XX-M (each), from 10’8″ to 21′, holds between 3 to 6 solar panels depending on length (in portrait).

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Canadian-made Kinetic Solar’s Rapid One rails are an economic and popular way to securely mount solar panels on rooftops and other structures. Kinetic offers a full line of mounting options, with mid- and end-clamps, L-feet, flashing and everything else needed to make your next solar mounting project a success!

Rails are available in 10’8″, 14’2″, and 21’0″ lengths. They can be combined into longer length using splices. The maximum span between support points (L-feet) is 4 feet, and the maximum overhang at the ends is 16″. Rails are made out of aluminum.

Please note that 21′ rails are for pickup at our warehouse only! We do not ship this length.

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Some useful short-notes regarding Kinetic racking installation:

  • Rails go under the PV modules, NOT on the edges.
  • Rails are ideally about 1/4 of the module width in from the edges, but anything from (nearly) at the edge to 1/3 in from the edge works fine.
  • Torque setting for all bolts on rails is 12 ft-lbs (144 inch-lbs).
  • Maximum cantilever for the rail (between the last L-foot and the end of the panels) is 16”.
  • Maximum spacing between L-feet is 4 feet.
  • Because the WEEB clips between panels and rails bond all the metal parts together, only a single ground lug for every row of panels (on one of the two rails) is needed. From the ground lug run 6 AWG copper wire to the other lugs, and onward to the equipment ground.
  • Each rail splice uses a single splice bar (they come in packages of two because you almost always need an even number of splice bars).
  • Strictly speaking code does not require this, but we have seen inspectors ask for a WEEB clip between each Ground Lug Mount and the rail. It’s easier to just install them than to wait for the inspector to complain.
  • End-clamps take up 1”, mid-clamps are ½” each.
  • Hanger bolts are 5/16”, predrill with 7/32” for the length of the thread.
  • Hanger bolts need sufficient wood to fasten into, that means they should go at the intersection of truss/rafter and the strapping of a corrugated metal roof.
  • Put small amount of caulking (Proflex) under the EPDM grommet of hanger bolts before tightening down.
  • Kinetic flashing uses two 5/16” stainless lag screws, predrill with 7/32” to avoid splitting truss.
  • Put some caulking (Proflex) under foot of flashing before installing it.
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