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System Application Guide SAG581126000
Spec. No. 581126000 (Model 700
NVBA) Issue AD, November 23, 2009
Page 45 of 123
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.
List CA: Distribution Bus Module (P/N 509848)
(20) Fuse/Circuit Breaker System Positions w/LVLD
Features
♦ Single Voltage Distribution (+24V)
♦ 500A Maximum Capacity
♦ (20) Load Distribution Fuse / Circuit Breaker Mounting Positions (3 to 100A TPS/TLS-Type Fuses / 1 to
250A Bullet Nose Type Circuit Breakers), or accepts “
GMT Load Distribution Fuse Block Assembly Kit
(P/N 514432)”.
♦ Low Voltage Load Disconnect Contactor
Restrictions
Can be installed in any bus position A-D (row 1-4) of a 1-, 2-, 3-, or 4-bus row cabinet.
Unless otherwise specified fuses and/or circuit breakers are mounted from left to right, starting with the
highest capacity and working to the lowest capacity.
Circuit breakers with greater than 100 ampere rating occupy two mounting positions.
Caution:
A circuit breaker or fuse with a rating greater than 150 amperes SHALL HAVE an empty
mounting position between it and any other overcurrent protective device.
Maximum size of wire to be connected to a single fuseholder or circuit breaker position is 2 AWG.
Ordering Notes
1) Order circuit breakers as required per
Table 7.
2) Order fuses as required per
Table 8.
Also order one (1) P/N 117201 bullet nose-type fuseholder per fuse ordered.
3) Order load lugs (two hole, 1/4” bolt clearance hole, 5/8” centers) as required for each distribution position
per Table
9 or 11.
4) Order lug hardware kit,
7P/N 520332, as required. Kit provides all hardware required to connect load and
ground lugs for four (4) positions of a bullet nose-type distribution assembly.
GROUND
BUSBAR
LOAD RETURN
CONNECTIONS
1/4-20 STUD, 40 PLACES
(CUSTOMER MUST SUPPLY ADDITIONAL HARDWARE)
5/8"
5/8"
LOAD
CONNECTIONS
1/4-20 THREADED HOLE, 40 PLACES
(CUSTOMER MUST SUPPLY LUG BOLTS
AND ADDITIONAL HARDWARE. BOLT LENGTH: 3/4")
LOADS
3/4"
LVD
CONTACTOR
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