Vertiv
™
NetSure
™
-48 VDC Power System
System Application Guide
Spec. No: 582140001
Proprietary and Confidential © 2022 Vertiv Group Corp.
SAG582140001
Model No: 801
NLDB
, 801
NLEB
, 801
NL
-
B
Page 43
Revision T, September 28, 2022
Power Bay DC Output Cable Sizes and Lugs Selection
Features
♦
3/8” clearance holes on 1" centers are provided for installation of customer provided DC output cables terminated in two-
hole lugs. These are accessed from the rear of each Power 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, 1.937 inches.
Ordering Notes
1)
DC output cable size varies depending on power requirements, therefore no specific information is provided for cable
size. Refer to Table 11 for recommended cable sizes and lugs at rated maximum bay output (2400 amperes). When
making connections, observe correct polarity.
2)
Lugs should be crimped per lug manufacturer’s specifications.
Ambient Operating
Temperature
(1)
Loop
Length
(2)
(Ft)
Recm 90
°
C
Wire Size
(1, 2)
Recommended Crimp
Lug
(3)
30°C
140
(5) 750 kcmil
245392000
40°C
140
(5) 750 kcmil
168
(6) 750 kcmil
1
Cable 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 cable sizes are sufficient to restrict voltage drop to 1.0 volt or less at rated full 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. Lugs should be crimped per lug manufacturer’s
specifications.
Table 11
Recommended Power Bay DC Output Cable Size and Lug Selection
