D24
Siemens Energy & Automation, Inc. 1000 McKee Street Batavia, Illinois 60510
SFIM-7002A-0901
Section D, September, 2001
Feeder Tap Circuit Breakers
These breakers are thermal magnetic type and feed lighting
or power circuits. 125A and 250A frame breakers are mount-
ed in plug-in units. Higher rated breakers are fixed mounted.
(See chart on page G6 for short circuit ratings and type of cir-
cuit breakers available.)
Dual mounted 125A frame breakers may be mounted in a 12”
plug-in unit with a common door.
Feeder Tap Fusible Switches
Fusible feeder switches, 30A through 200A, are mounted in
plug-in units. Switches above 200A are fixed mounted and
consist of molded-case switches and separate fuse blocks.
Dual-mounted fusible switches are available, 30A and 60A,
with clips of same rating. Fuse clips are Class RK dimensions
for 30-600A.
Feeder Tap Circuit Breakers and Fusible Switches: Disconnect Ratings and Space Requirements
Unit
Fuse
Unit
Max.
Height
Switch
Clip
Height
Frame
Trip
Rating
Size
Size
Amps
1CB
2CB
(A.)
Amps
1 Sw.
2 SW.
125
125
12
12
30
30
12
s
12
s
60
60
12
s
12
s
100
100
18
–
250
250
18
–
200
200
30
–
400
400
24
ad
–
400
400
42
ad
–
600
600
24
ad
–
600
600
42
ad
–
a
Fixed mounted unit.
s
Requires load terminal blocks.
d
Stab opening at top of unit not available in rear.
Circuit breakers
Fusible disconnect switch
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