SAG582127000
System Application Guide
Issue AF, February 26, 2014
Spec. No. 582127000 (Model 721
NPBB
)
Page 30 of 125
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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.
List AC: -48V Distribution Panel (with Return Busbar) and
List AD: -48V Distribution Panel (without Return Busbar),
(4) GJ/218 Circuit Breaker Positions
Features
♦
(4) -48V Load Distribution Circuit Breaker Mounting Positions:
100A to 800A GJ/218 Type Circuit Breakers.
♦
List AC includes a Return Busbar; List AD does not include a Return Busbar.
♦
600A Maximum Capacity.
Maximum current rating of each landing point is 360A.
Restrictions
Can be installed in any bus row 1-4 of a 1-, 2-, 3-, or 4-row distribution cabinet.
Maximum lug width, 1.375 inches.
For an 800A circuit breaker, load must not exceed 600A.
Ordering Notes
1) Specify row for panel location(s).
2) Order low voltage load disconnect List LL per panel as required.
3) List AD: To terminate load returns within the distribution cabinet, order List GA as required.
4) Order circuit breakers and associated jumper kits as required per
5) Order load lugs (two hole, 3/8” bolt clearance hole, 1” centers) as required for each distribution position
6) Order lug hardware kit (P/N 548184) as required. Lug hardware kit provides sixteen (16) sets of 3/8-16
hardware (bolts, flat washers, and lock washers), enough for eight (8) lug landing points.
Load
Connections
Load Return
Connections
LOAD AND LOAD RETURN CONNECTIONS
3/8-16 Captive Nuts on 1” Centers
(Customer must supply or order additional hardware)
Maximum Lug Width: 1.375 inches.
Return Busbar
(not included with List AD)
