240V 3-Phase Delta Connection (North America) With Center Tap On One Leg; 230V Above Ground (Europe) 230V Single Phase - Bosch Power Xpress Installation Instructions Manual

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4.3 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 connec-
tion.
L2
CENTER TAP
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 manufac-
turer's literature to verify that the single leg can supply the
required power.
NOTE: The EVSE will only operate properly if it detects the pres-
ence of a ground wire connected to a neutral point on the trans-
former 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.

4.4 230V Above Ground (Europe) 230V Single Phase

230V Single Phase
EARTH
578988 | REV. A | 28.10.2016
L3 (NOT USED)
L1
120V
NEUTRAL
(NOT USED)
120V
LINE (H)
230VAC
NEUTRAL (N)
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
L1
EVSE.
WARNING: The line connection must measure 230V
RMS to neutral. Earth must also be connected to
the EVSE.
240V
5.0 Electrical Requirements for
Battery Charging
CAUTION: The AC electrical connection must have
a grounded, dedicated service-main. No other
L2
loads shall be connected to the same circuit. Use
of a non-dedicated circuit could exceed the current
GND
rating of the circuit breaker and cause it to trip or
open.
Bosch Automotive Service Solutions Inc.