58
INSTRUCTION:
The neutral conductor from the inverter to point of
interconnection (POI) is optional. The function of the neutral,
when used,
is to provide a point of reference for measurement
purposes that is essentially at ground potential. The neutral
conductor is for control or measurement purposes only, and
therefore may be sized according to NEC section 705.95(B).
The ground conductor (PE) is sized to section 250.122.
Use the OT type terminal (Compression Lugs) to connect the AC
conductors to the AC terminal block and connect the PE (GND) cable to
the grounding terminal block. The neutral conductor is optional. The
inverter may be wired as a 3-wire or 4-wire connection, however the PE
ground is ALWAYS required. When terminating the ground conductor at
the Gnd busbar a ferrule is recommended but not required. (See the 1
st
diagram in Figure 3-29) Set up the conductors referring to Figure 3-30.
Pre-insulated end ferrule
1pcs
OT type terminal,4pcs
Pre-insulated end ferruleCore wire
OT type terminalCore wire
Figure 3-29 AC output and internal ground conductor set up
When bonding the inverter/mount to a metallic structure is required, use
the OT type terminal (Compression Lug) to connect the ground conductor
to the external bonding point at the bottom of the wiring box. The bonding
point is located at the bottom of the wirebox as shown in Figure 3-31.
To Next Page
Loading...
