23
GREEN MOTION DC 22 EV CHARGER INSTALLATION MANUAL
MN192004EN November 2022 www.eaton.com
00
Title
6. Electrical connections and wiring
6.1 Cautions
Installation, commissioning, maintenance or retrofitting of the EV charger must be performed by professional
and qualified personnel who are responsible for complying with existing standards and local installation
regulations.
For safety reasons, an appropriately rated input load disconnector must be provided for each individual
product. No load should be connected directly to the product during wiring.
Connect only one EV charger for each circuit breaker and residual current device (RCD). The circuit
breaker serves as a mains disconnector.
Before starting connection operations, ensure that the external AC-line main switch is disconnected, and
that circuit breakers are open.
Any operation requiring the opening of the charger can lead to electric shock hazards.
6.2 Standard wiring
To connect the EV charger to the electrical panel, professional and qualified personnel should consult Table 6 and
consider the following guidelines.
Table 6. Overview of parameters for dimensioning of the protective devices and power supply line
Green Motion DC 22 EV charger nominal power range
22 kW
Nominal input voltage (Un/Uph)
230 V/400 V
Nominal input current
32 A
Phases
3 phase
Power supply terminal block max. section
16 mm²
The power losses on the power supply line must be less than +/-10 % of the rated power in accordance
with IEC 60038 and local standards. For this reason, the cable sections or line length must be reassessed
by a professional and qualified personnel in accordance with maximum power loss regulations. Also,
when dimensioning the power supply line, observe the possible reduction factors and the increased
environmental temperatures inside the connection area of the charging station (see temperature rating of the
supply terminals). Under certain circumstances, this can increase the cable cross-section and change the
temperature resistance of the power supply line.
Professional and qualified personnel must define the types of RCD and circuit breaker in accordance with
local standards.
The protective earth conductor must have a cross-section at least equal to or greater than the cross-section
of the cables for connection to the public grid (AC), and in accordance with the requirements of local
regulations.
