INSTALLATION - RACKING
29
RAIL SPACING
Rails should be spaced so that the module is clamped in the correct positions. Refer to “Installation - PV
Modules” on page 36.
In general, the rails may be spaced between 833 mm and 1249 mm apart for REC255PE modules, and
between 756 mm and 1456 mm apart for HSL60P6-PB-1-250 modules.
RAIL OVERHANG
Rail end overhang must be no greater than 50% of rail support spacing. For example; if rail support spacing
is 1200 mm, rail end overhang can be up to 600 mm. In this case, two rail support brackets can support a rail
up to 2400 mm in length (1200 mm between brackets and 600 mm of overhang at each end).
Note:
Drawings not to scale
Rail Spacing:
833 – 1249 mm (REC255PE)
756 – 1456 mm (HSL60P6-PB-1-250)
Rail Support
Spacing =
x
Rail Overhang <
x/2