UPS SYSTEM INSTALLATION
Eaton 9395 Plus 1 UPS (225–275 kVA) Installation and Operation Manual
S
164201710 Rev 2
www.eaton.com\powerquality
4-7
4.5.2
External Power Wiring Installation
To install wiring to connections:
1.
Remove one top screw and two bottom screws securing the UPS left front panel
(see Figure 4‐2 on page 4-4). Lift the panel straight up to remove it from the
panel hanger bracket at the top of the cabinet.
2.
Remove the screws securing the internal safety shield panel and remove the
panel to gain access to the input, output, and battery terminals. Retain the
hardware for later use.
3.
Route the input and output cables through either the top or bottom of the cabinet
to the UPS terminals. See Figure 4‐4 for wiring access information and Figure 4‐6
and Figure 4‐7 for common rectifier feed terminal locations or Figure 4‐8 through
Figure 4‐10 for separate rectifier feed terminal locations.
Top Access Wiring.
Remove the top conduit plate from the top of the UPS.
Identify all conduit requirements and mark their location. Drill and punch all
conduit holes in the top conduit plate prior to mounting on the UPS. Install the
conduit plate and install all conduit runs into the plate. Pull the wiring through the
conduit into the wiring area.
Bottom Access Wiring.
Remove the bottom conduit plate from the inside bottom
of the UPS. Identify all conduit requirements and mark their location. Drill and
punch all conduit holes in the bottom conduit plate prior to mounting on the UPS.
Install the conduit plate and install all conduit runs into the plate. Pull the wiring
through conduit into the wiring area.
4.
Locate the external wiring terminal hardware kit packed on the bottom left side
of the ISBM section.
5.
If installing a UPS with separate rectifier feeds, proceed to Step 6; otherwise,
proceed to Step 8.
NOTE
On a UPS that is configured for separate rectifier inputs, all sources that feed the separate rectifier
inputs must be derived from a common ground point.
6.
Connect phase A, B, and C rectifier input power wiring from the utility source to
each UPM rectifier input terminal block in the UPS cabinet. See paragraph 3.2.2
on page 3-6, Table 3‐6 on page 3-10, and Table 3‐10 on page 3-12 for wiring and
termination requirements.
7.
Proceed to Step 10.
8.
Using hardware from the external wiring terminal hardware kit (see Table 3‐8 on
page 3-12), connect phase A, B, and C rectifier input power wiring from the utility
source to the rectifier input terminals in the UPS cabinet. See paragraph 3.2.2 on
page 3-6 for wiring and termination requirements.
9.
Using hardware from the external wiring terminal hardware kit (see Table 3‐8 on
page 3-12), connect phase A, B, and C, and Neutral (if required) bypass input
power wiring from the utility source to the bypass input terminals and neutral
terminals in the UPS cabinet. See paragraph 3.2.2 on page 3-6 for wiring and
termination requirements.
