Connecting To Dc Disconnect - Sharp JH-3500U Installation & Operator's Manual

This section describes the connection between the solar power conditioner and the DC disconnect. The distribution of the
connection are the output cables from the PV string (maximum three pairs of cables) and a grounding cable from the DC
disconnect.
Follow all WARNING and CAUTION of Wiring Solar Power Conditioner (page 13).
GND terminal
G
1. Utilize AWG12 cables for DC input single copper conductor wire (positive and negative) from the
DC disconnect through the conduit. Up to three pairs can be connected to the solar power
conditioner. Each pair should be marked as one pair of cables which are connected to the same
PV string when installing the PV array.
Tape
Tape
2. Locate the grounding cable (AWG 10 single copper conductor wire) from the DC disconnect
enclosure. This cable should be also located in the same conduit pipe used for the DC cables.
3. Remove the jacket of only one of the positive cables (black) which is connected to the first
terminal block. The length of the exposed conductor should be long enough to connect to the
DC terminal securely, and short enough to avoid touching any part except the terminal. See
below for detail.
16mm±1mm
DC cable
4. Connect the cable to the positive terminal of the terminal block 1 (rightmost), and tighten the screw
firmly to crimp the cable.

Connecting to DC Disconnect

DC terminal Block for
DC disconnect
13mm±1mm
grounding cable
- +
15