Canadian Solar CS3U-MB-FG Installation Manual page 9

Module types
CS3U-MB-FG
CS3K-MB-FG
CS3U-MB-AG
CS3K-MB-AG
CS3U-PB-FG
Portrait installation two rows:
CS3K-PB-FG
CS3U/CS3W cable length = 400 mm (+), 280 mm (-) & 1800 mm jumper cable
CS3U-PB-AG
CS3K cable length = 400 mm (+), 280 mm(-) &1400 mm jumper cable
CS3K-PB-AG
CS3W-PB-AG
Portrait installation one row: (Leap-frog for single-axis tracker)
CS3U Cable length = 1670 mm (+), 1670 mm (-)
CS3W Cable length = 1850 mm (+), 1850 mm (-)
The maximum distance between two adjacent modules should be within 50 mm (1.96 in) for side with mounting clamps,
and within 25 mm (0.98 in) for side without mounting clamps, in order to meet system cable scheme.
Recommended wiring configurations (continued)
Modules in adjacent rows should be rotated 180 degrees for proper
installation.
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Jumper
Cable