13
Step Five - Connect Wiring
NOTE: For most branch circuits of 100A, use 3
AWG (26.7 mm2), 75°C (167°F) copper wire.
For installations less than 100A, use
conductors that are sized according to local
electrical codes.
WARNING: Do not connect service
wiring until you have read and fully
understand the pages in this document titled
“Service Wiring.” If you are uncertain about
the type of power available at the service
panel, consult your local utility, or contact
Tesla for assistance.
1
Turn off the power.
WARNING: RISK OF ELECTRIC
SHOCK! Before connecting the
wiring, use a voltmeter to confirm that NO
POWER is available at the service wiring or
terminals.
2
Pull the service wiring into the High Power
Wall Connector. If using a hub, connect
conduit to the hub before connecting it to
the enclosure.
3
Strip the three wires 3/8” (10 mm).
4
Connect wiring to the terminal block.
Connect L1 to black, L2/N to red, and
green ground to one of the two available
ground connectors, as shown.
NOTE: The maximum size of the ground
wire is 4 AWG. Also note that neutral is not
used by the High Power Wall Connector. To
ensure proper operation, verify that
neutral is connected to earth ground inside
the circuit breaker box or the main
electrical panel.
5
Tighten the L1 and L2 screws to 35-50
in-lbs, depending on wire gauge. Tighten
the ground screw as follows:
Wire Gauge
AWG CU-AL
Torque
(in-lbs)
14~10 CU
12-10 Al
20
8
25
6~4
35
Two 14 or 12 CU
Two 12 or 10 Al
25
HPWC_Install_Guide.book Page 13 Wednesday, April 2, 2014 3:30 PM
