STEP 3: Wire Entry (continued)
Indoor application units are installed in the metallic NEMA 12/13
enclosures. The same principals outlined for the outdoor meter
installation as defi ned in the aforementioned paragraph carry over and
apply to indoor installations with one exception. This one exception is the
conduit and fi ttings used for indoor installations do not require an outdoor
materials rating.
STEP 4: Unit MAINS wiring
Remove the clear shield located over terminal block TB1 on the main
power board. This shield can be removed by pressing in on each
locking tab located at the top of each standoff. While pressing the tabs
inward, lift the shield from the standoffs. Wire each connection to
terminal block TB1 with stranded wire 14-12 AWG, rated at 600 VAC.
Strip back all wire insulation to expose between 1/4” and 3/8” of the
copper conductors. Gently twist each wire conductor to prevent
fraying. insert the conductors into their respective terminal block
positions and tighten down the terminal block screw to securely fasten
the conductor. Terminal block TB1 is clearly labeled PHASE A, PHASE
B, PHASE C and NEUTRAL.
Connect the NEUTRAL wire to the appropriate terminal block position.
NOTE: For 3-wire delta MAINS input wiring, DO NOT connect the
NEUTRAL wire. Remove the terminal block screw for this position.
Connect the three AC mains power wires (Phase A, Phase B and Phase
C) to their respective positions as labeled on terminal block TB1. After all
conductors are connected to their respective terminal block positions and
tightened down, verify each terminal block screw is securely fastened by
gently tugging on each conductor. Verify no conductor wires are frayed or
shorting to adjacent terminal block positions.
STEP 5: External switch mechanism/In-line fuse installation
To ensure a safe installation, the Green Class Net Meter requires an
external switch mechanism, such as a circuit breaker, be installed to the
meter’s MAINS input wiring. The switch mechanism must be installed in
close proximity to the Green Class Net Meter and easily reachable for
the operator. This device must also be marked as the disconnecting
device for the meter. Install 1/10 Amp slow activiation inline fuses with
the suitable voltage rating for each conductor phase at the MAINS input
to the meter. The fuses must be labeled to indicate voltage and current
rating as well as element characteristics. The fuse element must be slow
activating type.
Page 9
To Next Page
Loading...
Need help?
General
