ABB PVI-3.0-TL-OUTD-S-US, Руководство по эксплуатации продукта

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3007CC3
3 - Mounting and wiring
W
iring details
WARNING : Always respect the nominal ratings of voltage and current defined in the
Appendix, section 7, when designing the system. Observe the following considerations in
designing the photovoltaic system:
• Maximum array DC voltage input to each MPPT circuit: 600 Vdc under any condition.
• The maximum allowable input short circuit current limit of the PV array for each MPPT
input channel is 20Adc for the 3.6kW, 3.6kW and 4.2kW inverter, and 12.5Adc for the
3.0kW.
W
iring box components
Table 3-1 switchbox external components
Ref. Description
A
DC conduit entry KO’s; trade size 1”, 1-1/4”
B AC conduit entry KOs; trade size 1“, 1-1/4”
C DC disconnect switch
D Signal conduit entry with plastic threaded plug, ½: trade size
E AC conduit entry with plastic threaded plug; trade size 1”, 1-1/4”
F DC conduit entry with plastic threaded plug; trade size 1”, 1-1/4”
G Silkscreen ON/OFF legend
H Wiring box front cover screws (4)
The DC switch is a four-pole device rated at 25A/contact. If operating in the parallel mode,
feed both sets of input terminals to ensure the total input current is divided between the two
sets of switch contacts to guarantee the switch current specifications are not exceeded.