
576414 | REV. B | 28.10.2016
Bosch Automotive Service Solutions Inc.
en
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4
| Power Xpress™ Dual Bollard Charge Station Installation Guide
208V 3-Phase Wye Connection
NOTE:
A current-carrying neutral is not required for the
Charge Station for 208V connections.
WARNING: The EVSE must be installed by
a licensed electrician and in accordance
with all local electrical codes, ordinances,
and all authorities having jurisdiction.
WARNING: Do not install the EVSE near
flammable, explosive, or combustible
materials. Do not locate or store
flammable, explosive, or combustible
materials near the EVSE.
5.3 240V 3-Phase Delta Connection (North
America) with Center Tap on One Leg
One leg must be center-tapped, and only the two phases
on either side of the center tap can be used with the
delta connection.
L3
(NOT USED)
L1
CENTER TAP
L2
120V
120V
NEUTRAL
(NOT USED)
L1
240V
L2
GND
240V 3-Phase Delta Connection
NOTE:
The third line (L3 on the illustration of the delta)
is 208V, with respect to the neutral, and is sometimes
referred to as a “stinger.”
WARNING: Do not use this third line.
NOTE:
The two used phases must each measure 120V
to neutral or ground.
NOTE:
Consult the utility company or the transformer
manufacturer’s literature to verify that the single
leg can supply the required power.
NOTE:
The
EVSE
will only operate properly if it detects
the presence of a ground wire connected to a
neutral point on the transformer secondary.
WARNING: Do not use a 3-phase delta-
connected transformer secondary without
a center tap on one leg and/or without a
neutral point available for the required
ground connection.
5.4 230V Above Ground (Europe) 230V
Single Phase
LINE (H)
230VAC
NEUTRAL (N)
EARTH
230V Single Phase
WARNING: The EVSE is a single-phase
device. When connecting the line and
neutral wires, take care that the service
transformer secondary connection is
known, and the wires from the main circuit
breaker panel are correctly connected and
labeled. The following service connections
are primarily used in Europe and Australia
(sometimes known as “TT Power Grid”).
Please reference the following diagram.
The line, neutral, and earth outputs on the
illustration correspond to the inputs on
the EVSE.