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3.2.1 Service Wiring
•
Ground Connection
Always connect the Neutral at the service to Earth Ground. If ground is not pro -
vided by the electrical service then a grounding stake must be installed nearby.
The grounding stake must be connected to the ground bar in the main breaker
panel and Neutral connected to Ground at that point.
•
480Vac (Line to Line) Three-Phase
CAUTION!
T
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Charger can connect to L1, L2 or L3, and Neutral. Earth ground must be
connected to neutral at only one point, usually at the breaker panel.
DANGERS
Be Aware of High Voltage!
WARNING!
Earth Connection is Essential!
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480V Three-Phase Wiring Connection
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277V 277V
Neutral
277V
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L3
L1
480V
L2
semaconnect.com
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