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Conductor Sizing
Pass Thru Box from Optimizers to Inverter (combined strings):
23A x 1.25 = 28.8A
#10 THWN-2 Table 310.16
40A
No conduit fill adjustment Table 310.15 (B)(3)(a)
Temperature correction factor Table 310.15 (B)(2)(b)
40A x .77 = 30.8A
Inverter to Disconnect to Service Panel:
Nameplate maximum continuous output current:
32A @ 240V
32A x 125% = 40A 210.19 (A)(1)
#8 THWN-2 Table 310.16
50A (75ºC column)
No temperature correction factor
No conduit fill adjustment
Overcurrent Protection Device
40A fused disconnect Per Manufacturer Specification
Conductors may be oversized for voltage drop
09/22/16