INSTALLATION
EATON
Powerware
®
BladeUPS
®
(12 kVA) User's Guide
S
164201649 Rev 3
www.powerware.com
21
Parallel System Setup
W A R N I N G
Only qualified service personnel (such as a licensed electrician) shall perform the electrical
installation. Risk of electrical shock.
A UPS connected to a BladeUPS Bar with a paralleling line cord is
identified as a member of the parallel system. The BladeUPS Bar
connects the line and load to a common power bus. Parallel systems
can be configured for capacity or redundancy.
The BladeUPS models in a parallel configuration require a dedicated
branch circuit that meets the following requirements:
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Circuit with overcurrent protection, depending on parallel
configuration:
Table 1. BladeUPS Overcurrent Protection
Number of UPSs in Parallel System
BladeUPS 12
BladeUPS 12i
2
100A
63A
3
150A
75A
4
200A
100A
5
225A
125A
6 (N+1 System)
225A
160A
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Three-phase, 4-wire plus ground, 208Y/120V nominal (BladeUPS 12)
or 400Y/230V nominal, 380–415 Vac acceptable (BladeUPS 12i)
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50/60 Hz
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The breaker must be wall-mounted and be readily accessible to the
operator
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Flexible or rigid metal conduit
NOTE
For ease of wiring access with bottom entry, place the rack containing the UPSs on
a raised floor.