4. Installation
4.1 Conduit and cabling
Refer to Siemens VersiCharge Ultra 175 Piping and Cabling.
Site electrical design must be carried out and approved by a
suitably qualified professional. Prior to commissioning, the
electrical installation must be signed off as safe, complete,
and compliant to local laws and regulations.
4.2 Upstream protection
4.2.1. Device selection
Maximum sizes for the upstream electrical protective
equipment supplying the VersiCharge 175 kW are as described
in the following table.
Electrical
Network
VersiCharge
175 kW
Maximum
Demand
Recommended
Size
Maximum
Size
s
600 VAC
3ph, 60Hz
200 A
250 A
a
250 A
480 VAC
3ph, 60Hz
250 A
320 A
a
320 A
400 VAC
3ph, 50Hz
300 A
320 A
350 A
a
Recommended sizes for North American markets are selected according to NEC article 625, accounting for
the 125% rule.
s
The over current protection device rating must not exceed these values in order to maintain primary
protection for the LV transformer within the IPU.
WARNING!
Conduit and cabling
To ensure that laws and regulations are adhered to, prior to
installation of the piping and wiring, a professional review
of local requirements must be performed, as a result,
deviation from the requirements of this documentation may
be necessary.
Note: Deviations from these instructions must not reduce
the effective safety and integrity of the installation and the
product.
4.2.2 Optional under-voltage relay
The Isolated Power Unit (IPU) includes pre-wired terminals to
allow the optional use of an under-voltage device at the
upstream supply breaker. The pre-wired terminals supply a
normally closed 230VAC signal to allow upstream isolation in
the event of a VersiCharge 175 kW safety loop trip (for
example, tilt switch, cabinet door switch).
The use of an upstream under-voltage trip is optional, as the
IPU locally isolates via the input contactor in each of these
events.
4.3 Earthworks
Ensure that earthworks and trenching is completed with
respect to installation personnel safety and applicable local
and national legislation.
Ensure that all trenches are adequately roped off or barricaded
to prevent accidental access and take care with respect to
trenching locations and timing to allow appropriate access to
equipment as required.
4.4 HPC equipment storage recommendations
and conditions
Ensure that equipment is stored properly on site to ensure
that it is protected from the weather and not exposed to the
rain. Packaging may be damaged when wet.
When storing equipment:
• Stack and protect boxes inside a fenced off area of the site.
• Protect from weather conditions; store in a dry place or
cover with a waterproof tarpaulin.
• Ensure that only packing crates of similar sizes are stacked.
• Ensure a maximum height of two crates.
• Cabinets must be closed when leaving the site.
Figure 3: Maximum stacking height of similar sized boxes.
WARNING!
Incorrect fusing or an input over-current device can
compromise the electrical safety of this charger and
could result in serious injury or fire.
Available short-circuit fault current for the VersiCharge 175 kW
Fast Charger must not exceed 18 kA. This means that a
current limiting fuse or circuit breaker may be required in
locations where site fault current availability exceeds this value.
CAUTION!
To reduce the risk of fire, connect only to a circuit provided
with 320 amperes maximum branch circuit overcurrent
protection in accordance with the National Electrical Code,
ANSI/NFPA 70.
VersiCharge Ultra 175™ kW Fast Charger |
Site Installation Manual
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