Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
Issue 8 July 1999
Spare Parts and Replacement Procedures 8 - 5
Spare Fuses
Table 8-C provides spare fuse information for the J85502C-1
rectifier. A commercial equivalent fuse and the appropriate SD
sheets are referenced.
Replacing
Circuit Modules
This section gives step-by-step instructions for replacing circuit
modules CM1, CM2, and CM3.
Replacing CM1
Option Board
1. Turn the rectifier Power switch Off.
2. Turn the rectifier (CBA1) DC OUTPUT circuit breaker
Off (down).
3. At the ac service panel supplying power to the rectifier,
remove the input fuse assigned to the rectifier, or turn the
circuit breaker Off.
Table 8-C: Spare Fuse Information
List
Fuse
Designation
in SD
Drawing
Lucent
Technologies
Part Code
Rating
(amperes)
Commercial
Equivalent
Shown
on SD
Sheets
All
FA1 (+V)
70G
1/2
BUSSMAN
70G*
B1, C1
FA2 (-V)
List C
F1.1-F1.8
KS-19780,
L6
30
SOC**
Type SKM4
B1, C4
FA1.1-FA1.
8
70G
1/2
BUSSMAN
70G
* BUSSMAN is a trademark of the BUSSMAN Company
** SOC is a trademark of SAN-O Industrial Corporation
Caution
Follow instructions in “Handling Circuit Modules” in this
section to minimize electrostatic discharge when handling
circuit modules.
Do not connect or disconnect circuit modules with voltages
present or equipment damage may occur.