Eaton Powerware 9355 Parallel Installation Guide download pdf (Page 17)

TIE CABINET INSTALLATION

Eaton 9355 Tie Cabinet (20/30 kVA) Installation Guide S 164201630 Rev B www.eaton.com/powerquality

18. Hardwire the UPS input terminations.

See Table 1 for specifications and Figure 6 for a detailed view of the UPS

terminal block.

NOTE Input neutral must be wired for proper operation or the UPS will not start.

NOTE The Eaton 9355 UPS is shipped as a single-feed UPS and can be converted to a dual-feed UPS in the

field.

NOTE DO NOT overtighten the screws; be sure to use the specified tightening torque values shown in

Table 1.

Table 1. Terminal Block Wiring

20 kVA

Input Voltage

Wire

Function

Input Circuit

Breaker Size

L1, L2, L3, N

Wire Size

Ground

Wire Size

Tightening

Torque

Conduit Size

(Number of Conduits)

208

Input

100A

1 AWG 6 AWG

120 lb in

(13.5 Nm)

2.00” Conduit (1)

220 100A

1 AWG 6 AWG

480 (with transformer) 45A

8 AWG 10 AWG

1.00” Conduit (1)

600 (with transformer) 35A

8 AWG 10 AWG

208

Output 1 AWG 6 AWG

120 lb in

(13.5 Nm)

2.00” Conduit (1)

220

1 AWG 6 AWG

480 (with transformer)

1 AWG 6 AWG

30 kVA

Input Voltage

Wire

Function

Input Circuit

Breaker Size

L1, L2, L3, N

Wire Size

Ground

Wire Size

Tightening

Torque

Conduit Size

(Number of Conduits)

208

Input

125A

1/0 AWG 6 AWG

120 lb in

(13.5 Nm)

2.00” Conduit (1)

220 125A

1/0 AWG 6 AWG 2.00” Conduit (1)

480 (with transformer) 60A

6 AWG 10 AWG 1.00” Conduit (1)

600 (with transformer) 50A

8 AWG 10 AWG 1.00” Conduit (1)

208

Output 1/0 AWG 6 AWG

120 lb in

(13.5 Nm)

2.00” Conduit (1)

220

1/0 AWG 6 AWG

480 (with transformer)

1/0 AWG 6 AWG

Use only 90°C-rated copper wire. Minimum wire size is based on 120/208 full load ratings applied to NEC Code 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. Follow local requirements.

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.

Conduit is sized to accommodate one neutral conductor the same size as the phase conductor and one 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.

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Eaton Powerware 9355 Parallel Installation Guide Page 17

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