5.4 CONNECTION OVERVIEW
5.4.1 SYSTEM CONNECTIONS
Before connecting wiring, please remove the bottom cover by removing the 7 screws as shown below.
5.5 PV CONNECTION
5.5.1 CONNECTING PV TO THE INVERTER
Install a separate DC circuit breaker/isolator between the inverter and PV module(s). The
recommended DC breaker is a 4-pole 600V/20A, which is the minimum sized isolator switch to house
both positives and both negatives if using two independent strings. If only using 1 string, a 2 pole
600V/20A isolator/breaker is recommended. The recommended cable size for the PV connection(s) is
10 AWG (4mm
2
) torqued to 10.6 in-lbs. (1.2 Nm).
Consult with the installer to ensure that appropriate cable sizing is used due to various factors such as
voltage drop and Voc.
PV Cable Size Min. PV Disconnect/Isolator Spec Torque Specs
10 AWG – 6 AWG (Max)
(6mm
2
- 16mm
2
)
600V/20A 10.6 in-lbs. (1.2 Nm)
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