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WIRING REQUIREMENTS FOR COMMERIAL OR INDUSTRIAL
APPLICATIONS
Key Requirements
1)
EV chargers shall be on a dedicated electrical circuit.
2)
Each charger shall be protected with a 2-pole common trip circuit breaker (non-GFCI type)
as indicated by the below table:
Charger (A)
Circuit Breaker (A)
3)
Each charger is designed to draw a maximum of 48 amps.
4)
Each charger can operate on either a 240V or 208V circuit.
5)
Each charger requires three electrical supply wires (two hot, one ground, no neutral).
Wiring Diagram
Connect breezEV chargers to any one of the power sources as shown:
1)
208 VAC three phase, Delta system, Center tap grounded (use only two phases)
2)
208 VAC three phase, Wye system (use only two phases)
3)
240 VAC single phase
In a delta system, connect the breezEV station only to a center-tapped grounded transformer
only as shown below. Connect the station to the side where ground is bonded (in figure C line A
and C). This allows voltages to remain constant regardless of other loads that may be using the
lines. Please do not connect to other type of power sources shown below:
Ungrounded
Corner Grounded
Circuit Breaker Requirement
24
30
Center Tap Grounded
www.breez-EV.com 847-380-3540
sales@led-llc.com
32
40
40
50
48
60
Grounding
Transformer
7
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