User`s guide

VERSION 1 TIE CABINET PARALLEL INSTALLATION
Eaton 9355 Parallel UPS (10/15 kVA) User's Guide S 164201601 Rev B www.eaton.com/powerquality
21
13. Hardwire the UPS input terminations.
See Table 1 for specifications and Figure 15 for a detailed view of
the UPS terminal block.
NOTE Input neutral must be wired for proper operation. Failure to connect an input neutral
will void the warranty. If the optional input transformer is installed, an input neutral is not
required.
NOTE The Eaton 9355 UPS UPS is a single-feed UPS only.
Table 1. UPS Terminal Block Wiring
10 kVA
Input Voltage
Wire
Function
Input Circuit
Breaker Size
L1, L2, L3, N
Wire Size
1
Ground
Wire Size
1
Tightening
Torque
Conduit Size
2, 3
(Number of Conduits)
208
Input
45A
6 AWG 10 AWG
120 lb in
(13.5 Nm)
1.00” conduit (1)
220 45A
8 AWG 10 AWG
208
Output 8 AWG 10 AWG
120 lb in
(13.5 Nm)
1.00” conduit (1)
220
8 AWG 10 AWG
15 kVA
Input Voltage
Wire
Function
Input Circuit
Breaker Size
L1, L2, L3, N
Wire Size
1
Ground
Wire Size
1
Tightening
Torque
Conduit Size
2, 3
(Number of Conduits)
208
Input
60A
4 AWG 10 AWG
120 lb in
(13.5 Nm)
1.25” conduit (1)
220 60A
4 AWG 10 AWG 1.25” conduit (1)
208
Output 6 AWG 10 AWG
120 lb in
(13.5 Nm)
1.00” conduit (1)
220
6 AWG 10 AWG
1
Use only 90°C-rated copper wire. Minimum wire size is based on 120/208 full load ratings applied to National
Electrical Code
(NEC) Table 310‐16. Code may require a larger AWG size than shown in this table because of
temperature, number of conductors in the conduit, or long service runs. Wire lengths should be the same size. Follow
local requirements.
2
Per NEC article 300‐20(a), all three-phase conductors must be run in the same conduit. Neutral and ground must be
run in the same conduit as the phase conductors.
3
Conduit is sized to accommodate one neutral conductor the same size as the phase conductor and one #8 AWG
ground conductor. If two neutral conductors or an oversized neutral conductor are to be installed, check the size of the
conduit needed to accommodate the extra wire or size and use that conduit size in place of the conduit size listed.
Conduit sizes were chosen from NEC Table C1, type letters RHH, RHW, RHW‐2, TW, THW, THHW, THW‐2.