2
Uninterruptible Power Supplies
Chassis Selection
The S5KC Modular UPS system has multiple chassis
available to build on:
Select the proper chassis based on your applications current
and future need for expansion. Also consider if redundancy
will be required for your application then consider your
application power and location wiring needs. To help with
selecting the appropriate chassis series, we have provided
a useful selection flow chart to guide you to an appropriate
chassis series for your needs.
Steps to Selection
1. Determine the maximum kVA you will need for future
expansion.
2. Determine the kVA and run time value for your
immediate need.
3. Using the flow chart to the right, determine the voltage,
phase configuration and chassis requirements.
4. Determine if you need redundancy. If the exact run time
is critical and you are not sure which unit is appropriate,
please contact our technical support team to aid in
selection.
5. Select the unit that meets both your immediate
requirements, and is expandable to your future
needs. Each chassis will have a “Maximum Upgrade”
capacity. The Maximum Upgrade is the highest kVA
expansion that particular configuration is capable of
without removing any of the battery modules from the
original configuration.
6. External Battery Cabinets (EBC). Depending on
extended run-times desired or your location's spacing
requirements, you may be able to add an optional EBC
to extend your run-time.
7. Optional External Maintenance Bypass (EMB) or other
available accessories. Review your application's current
and future needs and consider all functional options
including filters and spare modules if desired.
Which Product Do I Select?
Xfmr-free (2W + G)
Xfmr-free (3W + G)
S5KC-A and
S5KC-B
S5KC-E and
S5KC-F
INV
INV
INV
L
N
L
L
L
L(
N
)
L
All loads are
200-240V
L
L(
N
)
L
L(
N
)
L
L
N
X
N
X
L
L
N
INV
S5KC-C and
S5KC-D
N
L
L
Xfmr-based (3W + G)
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com