Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
5 - 4 Installation
Issue 4 May 1998
Table 5-A shows the recommended customer-supplied fuse size
and type for the branch circuit protection in the ac service panel
supplying input to the rectifier. The types shown are Bussmann
(a trademark of the Bussmann Company) fuses. Equivalent UL
listed fuses or circuit breakers can be used in lieu of those shown.
If circuit breakers are used, they should have trip elements of an
equivalent rating to the recommended fuse.
The AC EG or frame ground is normally connected using the
mechanical connection that is provided. Discard this connection
if you prefer the WP91412 crimp connection, which is also
provided. Use T&B crimp tool WT1300 on the crimp
connection. See note 56 on J85502A-1 drawing.
Table 5-A: AC Input Requirements
List Volts
Amps
Line
Fuse
Type,
Rating
Input
Circuit
Breaker
Size
(amps)
Number*
of Input
Wires,
Gauge
Armored
Cable
Trade
Size
(inches)
for Wire
Size
Shown
Max.
Input
Wire
Gauge
Conduit
Knockout
and
Conduit
Trade
Size**
(inches)
Terminal
Supplied
on
Rectifier
L1
208 or
240
4.2 or
4.0
FN, 10
10
3, 14
AWG
1/2
12
AWG
7/8, 1/2
Screw
type
L2
208 or
240
8.0 or
7.0
FN, 15
15
*Input wire count includes one “green wire” ground. Use KS24194 L3 or 75°C
commercial wire.
**Where the trade size of the conduit used is smaller than the trade size for which the
conduit knockout was sized, use appropriate knockout reducing washers.
Table 5-B: DC Output Requirements
Amps
Output Wire Size*
Output Conduit
Trade Size (Inches)
25
#8 AWG
1
*Use KS24194 L2 wire. It is a flexible, stranded copper wire,
rated 600 volts; stranding meets American Society for Testing
and Materials (ASTM) B 172 Class I. This non-halogen,
insulated wire is rated 90°C. The insulation has a
combustibility rating of 28% minimum as determined by
ASTM D2863. Wire sizes were chosen to limit the voltage
drop in the output leads to 2 volts maximum where the cable
loop is approximately 100 feet.
