Brochures and Data Sheets

PD588705000 Power Data Sheet
Issue AP, September 12, 2013 Spec. No. 588705000 (Model PSS4850-23GV)
Page 18 of 42
This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
RECOMMENDED WIRE SIZES, BRANCH CIRCUIT PROTECTION, CRIMP LUGS,
AND WIRING ILLUSTRATIONS
Shelf Frame Grounding Connection
Located at the rear of the shelf are terminals for a grounding connection. See Table 1 for recommended
frame grounding wire size and Figure 1, Figure 2, Figure 3, Figure 4, Figure 7, or Figure 8 for terminal
location.
FRAME GROUND (FR GND)
1
Terminals Recm Wire Size
Two 10-32 X 3/4"
Studs and Hardware
10 AWG
1
This terminal must be connected to earth ground, not power system neutral. Equipment grounding
conductor size based on recommendations of the NEC Table 250-122 for copper wire. If aluminum or
copper clad aluminum grounding conductor is used, refer to Table 250-122 for increased conductor size.
For operation in countries where the NEC is not recognized, follow applicable codes.
2
For shelf grounding requirements, refer to the current edition of the American National Standards Institute
(ANSI) approved National Fire Protection Association's (NFPA) National Electrical Code (NEC), applicable
local codes, and your specific site requirements.
Table 1
Recommended Frame Grounding Wire Size
AC Input Connections
List 1, 31, 51, and 61 Module Mounting Shelf (208/240VAC Single Phase Input)
Refer to Table 2 for recommended wire size and Figure 1 or Figure 2 for terminal location.
LIST 1, 31, 51, AND 61 AC INPUT (TB1 and TB2)
Connection Points for Individual Rectifier Module AC Input Branch Circuits are Provided
(One AC Input Branch Circuit per Rectifier Module,
Five [List 61] or Six [List 1, 31, 51] AC Input Branch Circuits per Shelf)
Operating
Ambient
Temperature
1
Recm
Branch
Circuit
Protection
2, 3
Recm 90
°
C
Wire Size
1
TB1 and TB2 Terminals
Capacity Type
30°C
25 Amperes 10 AWG
List 1, 31:
10 to 24 AWG
List 51, 61:
6 to 14 AWG
Screw Compression
Tubular Contact
40°C
65°C
1
Wire sizes based on recommendations of the American National Standards Institute (ANSI)
approved National Fire Protection Association's (NFPA) National Electrical Code (NEC). Table
310.15 (B) (16) for copper wire at 90°C conductor temperature. For operation in countries where the
NEC is not recognized, follow applicable codes.
2
The AC input branch circuit protective device should be of the time-delay or high inrush type.
3
Recommendations based on Nominal Line Full Load Input Current of 18 Amperes.
Table 2
Recommended AC Input Branch Circuit Protection and Wire Size - List 1, 31, 51, and 61
Home