Emerson SAG581126000, System Application Manual

Page: 41 / 123

System Application Guide SAG581126000
Spec. No. 581126000 (Model 700
NVBA
) Issue AD, November 23, 2009
Page 41 of 123
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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 AK: Distribution Bus Module (P/N 520805)
(24) Fuse/Circuit Breaker System Positions
Features
♦
Single Voltage Distribution (+24V)
♦
500A Maximum Capacity
♦
(24) 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) ”.
Restrictions
Provides no ground return busbar. Ground return connections must be made outside of Power Distribution
Cabinet, or to
List AL .
Can be installed in any bus position A-D (row 1-4) of a 1-, 2-, 3-, or 4-bus row cabinet. Note: Additional
restrictions apply if used in conjunction with a List AL. See List AL for restrictions.
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.
125A, 150A, and 200A circuit breakers occupy two mounting positions. 250A circuit breakers occupy three
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, P/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.
LOAD
CONNECTIONS
5/8"
1/4-20 THREADED HOLE, 48 PLACES
(CUSTOMER MUST SUPPLY LUG BOLTS
AND ADDITIONAL HARDWARE. BOLT LENGTH: 3/4")
LOADS
3/4"
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