Installing Siac-B External Power Wiring - Eaton 93PM 150 kW SIAC-B Three-Wire Installation And Operation Manual

Installation
4.8

Installing SIAC-B External Power Wiring

NOTE 1
NOTE 2
NOTE 3
To install wiring:
1. Remove the screw securing the bottom of the SIAC-B front panel. Lift the panel straight up to remove it
from the panel hanger bracket at the top of the cabinet. Retain screw for later use.
2. Remove the screws securing the internal safety shield panel and remove the panel to gain access to the
maintenance bypass input, critical load output, and rectifier input (if installed) terminals. Retain the
hardware for later use.
3. If wiring the SIAC-B using top entry wiring access, proceed to Step 4; otherwise, proceed to Step 7.
4. Top Entry Wiring. Remove the top conduit landing plate (see Figure 4-15 or Figure 4-16) from the top of
the SIAC-B. Identify all conduit requirements and mark their location. Drill and punch all conduit holes in
the top cover prior to mounting on the SIAC-B. Install the top conduit plate and install all conduit runs into
the top cover.
5. Route the maintenance bypass input, critical load output, and rectifier input (if installed) cables
(phase A, B, and C, Ground, and if required Neutral) through the conduit on the top of the SIAC-B to the
SIAC-B terminals. See Figure 4-15 or Figure 4-16 for SIAC-B wiring access information, and Figure 4-17,
Figure 4-18, Figure 4-19, or Figure 4-20 for terminal locations.
6. Proceed to Step 9.
7 . Bottom Entry Wiring. Remove the bottom conduit landing plate (see Figure 4-15 or Figure 4-16) from the
bottom of the SIAC-TB. Identify all conduit requirements and mark their location. Drill and punch all
conduit holes in the bottom conduit plate prior to mounting on the SIAC-B. Install the conduit plate and
install all conduit runs into the plate.
8. Route the maintenance bypass input, critical load output, and rectifier input (if installed) cables (phase A,
B, and C, Ground, and if required Neutral) through the conduit on the bottom of the SIAC-B to the SIAC-B
terminals. See Figure 4-15 or Figure 4-16 for SIAC-B wiring access information, and Figure 4-17,
Figure 4-18, Figure 4-19, or Figure 4-20 for terminal locations.
9. If wiring a 93PM 200 kW Three-Wire SIAC-B or 93PM 200 kW Four-Wire SIAC-B, proceed to Step 10; if
wiring a 93PM 150 kW Three-Wire SIAC-B or 93PM 150 kW Four-Wire SIAC-B, proceed to Step 15.
10. Locate the external wiring terminal hardware kit (see Table 3-10) packed at the bottom of the SIAC-B.
11. Using hardware from the external wiring terminal hardware kit, connect phase A, B, and C, and Ground
bypass input power wiring from the utility source to the SIAC-B maintenance bypass input terminals. See
paragraph 3.2.3, Table 3-2 or Table 3-3 and Table 3-8 through Table 3-11 for SIAC-B wiring and termination
requirements.
For SIAC-B terminal phase wiring assignments, see Figure 4-19 or Figure 4-20.
12. Using hardware from the external wiring terminal hardware kit, connect phase A, B, and C, and Ground
output power wiring from the SIAC-B output terminals to the critical load. See paragraph 3.2.3, Table 3-2
or Table 3-3 and Table 3-8 through Table 3-11 for SIAC-B wiring and termination requirements.
For SIAC-B terminal phase wiring assignments, see Figure 4-19 or Figure 4-20.
4-20 Eaton 93PM Sidecar Integrated Accessory Cabinet-Bypass (150 kW and 200 kW SIAC-B) Installation and Operation Manual P-164000387—Rev 7
The SIAC-B Bypass Input Breaker (BIB) to UPS bypass input, the output from UPS,
and the Rectifier Input Breaker (RIB) to UPS rectifier input (if installed) phase and
ground wiring are prewired to the factory installed SIAC-B or have been wired using
the procedures in paragraph 4.4.
External power wiring can be routed either through the top or bottom of the SIAC-B.
Remove the SIAC-B top or bottom conduit landing plate to drill or punch conduit
holes (see Figure 4-15 or Figure 4-16).
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