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SAG582127000
System Application Guide
Issue AF, February 26, 2014
Spec. No. 582127000 (Model 721
NPBB
)
Page 66 of 125
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.
Distribution Devices
Bullet Nose Type Circuit Breakers and Bullet Nose Type Fuseholders e/w TPS/TLS Fuses
Features
♦
Each circuit breaker (as listed in
) plugs into one, two, or three mounting position(s)
on a distribution panel containing bullet nose type distribution positions.
♦
A single fuseholder provides for installation of a 3A to 100A Bussmann TPS type or Littelfuse TLS type
). This fuseholder plugs into a single mounting position on a distribution panel
containing bullet nose type distribution positions. This fuseholder provides a GMT-A alarm type fuse,
which operates open to provide an alarm indication if the associated distribution fuse opens.
Restrictions
For use in Lists AA, AB, BA, BB, DA, DB, DC, and DD.
Load should not exceed 80% of device rating.
Install distribution devices from left to right, starting with the highest capacity and working to the lowest
capacity.
Caution: A circuit breaker or fuse with a rating of 100A or greater SHALL HAVE an empty mounting
position between it and any other overcurrent protective device.
Ordering Notes
1) Order circuit breakers as required per
2) Order fuses as required per
. For each fuse ordered, also order one (1) P/N 117201 bullet nose
type fuseholder.
3) See
for recommended load distribution wire sizes and lugs.
4) When ordering 125A, 150A, 200A, or 250A circuit breakers; associated crimp lugs may be ordered from
When ordering 125A, 150A, or 200A circuit breakers; lug adapter busbar P/N 520989, lug adapter busbar
P/N 522786, or lug adapter busbar kit P/N 534449 may be ordered per circuit breaker (see
in this section).
When ordering 250A circuit breakers; lug adapter busbar P/N 514714 or lug adapter busbar kit 514717
may be ordered per circuit breaker (see