Application Guide

SAG582140001 System Application Guide
Issue AN, June 4, 2014 Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B)
Page 54 of 115
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6 Feeds
Input
Voltage
Input
Current
Overcurrent
Protection
(1)
40°C Ambient
Temperature
(2)
Wire
AWG
(2) (3)
Conduit
Size (in.)
THWN - 75°C Wire - Individual Feed
Four Rectifiers (6 Current and 1 Ground Wire) per Conduit
480V 31A 40A 8 3/4
480V 31A 50A 6 3/4
THHN - 90°C Wire - Individual Feed
Four Rectifiers (6 Current and 1 Ground Wire) per Conduit
480V 31A 40A 8 3/4
480V 31A 50A 6 3/4
Recommended Equipment Grounding Wire Crimp Lugs
Wire AWG Crimp Lug P/N
(4)
8 245346600
6 245346500
1
The AC input branch circuit protective device should be of the
time-delay or high inrush type.
2
Wire sizes based on recommendations of the American National
Standards Institute (ANSI) approved National Fire Protection
Association's (NFPA) National Electrical Code (NEC). Table
310-16 for copper wire at 75°C and 90°C conductor temperature;
operating in an ambient of 40
°C was used. For other operating
ambient temperatures, refer to the National Electrical Code. For
operation in countries where the NEC is not recognized, follow
applicable codes.
3
Equipment grounding conductors must be provided with the AC
input conductors supplied to the Bay. Frame ground terminals
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. When 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.
4
Single-hole lug, 1/4" bolt clearance hole.
Table 15
Recommended AC Input Wire and Conduit Size, and Lug Selection
(6 AC Input Feeds, 1 per 4 Rectifier Modules)
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