Application Guide

SAG582140001 System Application Guide
Issue AN, June 4, 2014 Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B)
Page 46 of 115
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.
Distribution Bay DC Input Cable Sizes and Lugs Selection
Features
♦ 3/8” clearance holes on 1" centers are provided for installation of customer provided DC input cables
terminated in two-hole lugs. These are accessed from the rear of each Distribution Bay.
♦ For lug mounting hole size and spacing dimensions, refer to the illustration provided in this section.
Restrictions
All lugs for customer connections must be ordered separately.
Customer needs to supply lug mounting hardware.
Maximum size of wire to be connected to a single lug position is 750 kcmil (2 per lug position).
Maximum lug width, 2.000 inches.
Ordering Notes
1) DC input cable size varies depending on power requirements, therefore no specific information is
provided for cable size. Refer to Table 12 for recommended cable sizes and lugs at rated maximum bay
load (6000 amperes). When making connections, observe correct polarity.
2) For other available lugs and hardware, refer to drawings 031110100 through 031110300.
Ambient Operating
Temperature
(1)
Loop
Length
(2)
(Ft)
Recm 90
°
C
Wire Size
(1, 2)
Recommended
Crimp Lug
(3)
30°C
112
(10) 750 kcmil
245392000
40°C
112
(10) 750 kcmil
157
(14) 750 kcmil
1
Wire sizes are based on recommendations of the American National Standards Institute
(ANSI) approved National Fire Protection Association's (NFPA) National Electrical Code
(NEC). Table 310-16 for copper wire rated at 90
°C conductor temperature operating in
ambients of 30
°C and 40°C was used. For other operating ambient temperatures, refer to the
NEC. For operation in countries where the NEC is not recognized, follow applicable codes.
2
Recommended wire sizes are sufficient to restrict voltage drop to 1.0 volt or less at rated full
load output current of the bay for the loop lengths shown. Loop length is the sum of the
lengths of the positive and negative leads.
3
Two-hole lug, 3/8" bolt clearance hole, 1" centers. Refer to drawing 031110100 for lug
crimping information.
Table 12
Recommended Distribution Bay DC Input Cable Size and Lug Selection
Home