GE Power Break 1 Manual

							Power Break® Circuit Breakers
Chapter 3. Accessories
15
Figure 31. Slide reset lever and spring on the mounting plate.
Figure 32. Positioning the UVR assembly on the mounting plate.
11 1 1
00 0 0
... .
Use the wire ties provided to secure the leads to the
mounting plate and to secure the wire bundle to the
inside and outside of the breaker base, as shown in
Figure 20.
11 1 1
11 1 1
... .
Reassemble the breaker covers as described in
Breaker Cover Reassembly.
11 1 1
22 2 2
... .
Mount the dropping resistor (when supplied) and
MOV, shown in Figure 29. Wire these as shown in
Figure 30.
Figure 33. Installing the UVR mounting screw.
11 1 1
33 3 3
... .
Perform the following functional check of the UVR:
aa a a
... .
Apply rated voltage to the UVR coil.
bb b b
... .
Turn the breaker 
on.
cc c c
... .
Reduce the control voltage. The breaker should
trip when the voltage drops to 35–60% of its rated
value.
11 1 1
44 4 4
... .
Apply the UVR descriptive label to the left side of the
breaker near the lead-exit area.
3–5 Blown-Fuse Trip Device
The blown-fuse trip device (three-coil shunt trip), shown
in Figure 34, is intended for applications with breakers
and fuses in series. This accessory prevents single-phasing
conditions by monitoring the fuses and automatically
tripping the circuit breaker when a fuse blows. It does not
protect from single-phasing of the power source.
Figure 34. Blown-fuse trip device accessory. 
						

							Power Break® Circuit Breakers
Chapter 3. Accessories
16 Each coil of the blown-fuse trip device is wired across a
fuse so that the voltage across an open fuse is fed back to
the accessory coil. When the coil is energized, the solenoid
core releases the spring-biased latch, allowing the slide to
rotate the breaker latch, tripping the breaker. The fuse
must be replaced and the breaker reset before the breaker
can be reclosed.
If the breaker is closed on an open fuse, the blown-fuse
trip device will automatically open the breaker.
Blown-Fuse Trip Device Installation
Installation of the blown-fuse trip device is similar to that
of the shunt trip, described above.
11 1 1
... .
The blown-fuse trip device assembles to a mounting
plate. Not all breakers are shipped from the factory
with a mounting plate. Some breakers have only an
L-shaped bracket to retain the molded-plastic crank.
A mounting plate is provided in the blown-fuse kit.
• If the breaker is supplied with an L-shaped
bracket, remove the two retaining screws and dis-
card the bracket.
• If the breaker is supplied with a mounting plate,
follow the instructions under 
Mounting Plate
Removal
.
22 2 2
... .
Assemble the blown-fuse trip device to the accessory
mounting plate as shown in Figure 26. If a shunt trip
had previously been mounted as shown in Figure 25,
it must be relocated as shown in Figure 26, with its
plunger stop nut in contact with the plunger of the
blown-fuse trip device.
33 3 3
... .
Follow the procedure for 
Mounting Plate Installation.
44 4 4
... .
Perform the following installation checks:
aa a a
... .
Replace the breaker cover as described above.
Close the breaker contacts.
bb b b
... .
Apply 120 volts to one coil of the blown-fuse trip
device for not more than one second. The
breaker must trip. Repeat the test for each coil.
55 5 5
... .
Attach the six lead wires from the blown-fuse trip
device across the three fuses, as shown in the wiring
diagram in Figure 35.
66 6 6
... .
Apply the descriptive label to the front of the breaker.
77 7 7
... .
Reassemble the breaker cover(s) as described in
Breaker Cover Reassembly.
Figure 35. Blown-fuse trip device wiring diagram.
3–6 Auxiliary Switch
The auxiliary switch, shown in Figure 36, is used for
remote indication of the breaker’s main contact posi-
tion—
open or closed. No distinction is made between
open or tripped mode. A maximum of 12 switches can be
installed per breaker. Each is single-pole, double-throw
(AB-type) and rated as listed in Table 7. Two switch posi-
tions must be devoted to each shunt trip accessory (if
used) per breaker. The auxiliary switch wiring diagram is
shown in Figure 37.
Figure 36. Auxiliary switch. 
						

							Power Break® Circuit Breakers
Chapter 3. Accessories
17
Figure 37. Auxiliary switch wiring diagram.
Catalog
NumberNumber of
Switch ElementsMaximum
Current Rating
TPAS2ABx 1–126 A at 240 Vac
.25 A at 250 Vdc
.50 A at 125 Vdc
* Replace x with a number from 1–12 for
the number of switch elements.
Table 7. Auxiliary switch electrical characteristics.
Auxiliary Switch Installation
11 1 1
... .
Remove the circuit breaker cover(s) as described in
Breaker Cover Removal.
• If the breaker was supplied with an L-shaped
bracket (see 
Mounting Plate Removal), remove
the two retaining screws, discard the bracket, and
install the mounting plate provided in the kit (see
Mounting Plate Installation).
22 2 2
... .
Both the left and right breaker poles can accept up to
six auxiliary switches. If the left pole contains a shunt
trip, two of the six auxiliary switch positions must be
used  for the cut-out switches; thus, only four auxil-
iary switches may be used in the left pole.
33 3 3
... .
If auxiliary switches are to be installed in the right
pole, remove the trip unit by depressing the lock
release lever while lifting up on the trip unit. Remove
the trip unit mounting plate, shown in Figure 38.
44 4 4
... .
Position the auxiliary switch assembly so that the
tapped mounting holes on its bracket line up with
the through holes in the arm stop, as shown in
Figure 39.
55 5 5
... .
Secure the auxiliary switch assembly to the arm stop
with two #8 × 
9/16 screws and lock washers, as shown
in Figure 40. Tighten the screws to 23 in-lbs.
Figure 38. Trip unit removed from the breaker.
Figure 39. Installing the auxiliary switch assembly.
Figure 40. Securing the auxiliary switch assembly.
66 6 6
... .
Remove knockouts in the side of the base, as
required. Each knockout will accommodate up to
three bundles of wire. Remove all sharp edges with a
file.
77 7 7
... .
Use the supplied wire ties to secure the leads as
shown in Figure 20.
88 8 8
... .
Replace the trip unit mounting plate and trip unit.
99 9 9
... .
Replace the breaker cover(s) as described in 
Circuit
Breaker Cover Reassembly
.
11 1 1
00 0 0
... .
Perform the following functional checks:
aa a a
... .
With the breaker 
off, use a continuity tester to
verify continuity between the white and brown- 
						

							Power Break® Circuit Breakers
Chapter 3. Accessories
18 white leads. Verify an open circuit between the
red and white leads.
bb b b
... .
With the circuit breaker 
on, the auxiliary switch
contacts should change sense.
11 1 1
11 1 1
... .
Apply the auxiliary switch descriptive label to the
front of the breaker cover.
3–7 Remote Close Solenoid and
Remote Charge Indication
The remote close solenoid is included with electrically
operated breakers and may be ordered as a factory-
installed option in manually operated breakers. Catalog
numbers and specifications are listed in Table 8.
Remote charge indication provides for remote indication
that the breaker closing springs are charged. Catalog
numbers are TPXCAS and TSXCAS for 800–2000 A and
for 3000–4000 A frames, respectively. The switch is rated
at 15 A for 250 Vac and at 0.5 A for 125 Vdc. Figure 41 is
the wiring diagram for remote charge indication. Figure
42 is the wiring diagram for remote charge indication
with a remote close solenoid.
Figure 41. Wiring diagram for remote charge indication.
Figure 42. Wiring diagram for remote charge indication with remote
close solenoid.
Catalog No.Rated
VoltageOperatingRange*, VCurrent at Max.
Voltage, AMaximum
Closing Time, sMaximum
Operating Time, s
TPXCC12S 120 Vac 102–132 3.3 0.083 0.050
TPXCC14S 240 Vac 204–264 1.7 0.083 0.050
TPXCC08S 24 Vdc 19–29 13 0.083 0.050
* The power source must stay within the rated operating voltage range of the close solenoid from no load to the full peak
current rating of the device.
Table 8. Catalog numbers and ratings for the remote close solenoid.
3–8 Optional Features
Special features may be ordered as specific accessories or
as an integral part of the breaker catalog number. Refer to
the BuyLog®, GEP-1100, for these features.
Limited Close Access Button
This accessory, shown in Figure 43, provides for limited
manual access to the 
ON button. The breaker can be
closed in an emergency for maintenance by inserting a
1/8-inch diameter pin or rod into the hole in the center of
the button. Manually operated breakers must be ordered
with an accessory closing solenoid.
Figure 43. Limited close access button. 
						

							Power Break® Circuit Breakers
Chapter 3. Accessories
19
Padlock Function
Handle Button Lock
A standard feature on motor-operated breakers that pre-
vents manual charging of the mechanism, as shown in
Figure 5.
OFF Button Padlock with Door Interlock
This accessory prevents opening of the panel door when
the breaker is 
ON or CHARGED. It operates as follows:
• With the breaker 
OFF the paddle can be rotated
counterclockwise over the breaker nameplate to clear
the enclosure panel door. Rotate the paddle clock-
wise to lock the door, as shown in Figure 44.
• To defeat the interlock when the breaker is 
ON or
CHARGED, depress the spring and rotate the paddle
to clear the door, as shown in Figure 45.
Figure 44. OFF button padlock with panel door interlock.
Figure 45. Defeating the OFF button padlock. 
						

							Power Break® Circuit Breakers
Chapter 4. Maintenance
20
WW W W
AA A A
RR R R
NN N N
II I I
NN N N
GG G G
::: : Before beginning any maintenance work,
disconnect the breaker from all voltage sources, both
power and control, and ensure that the breaker is OFF.
4–1 Inspections
Circuit breakers should be maintained through the
implementation of a systematic maintenance program. A
periodic inspection routine is recommended. The fre-
quency of inspection should depend on the environ-
mental conditions of each breaker. All circuit breakers
should be inspected at least annually. It a breaker is oper-
ated frequently or installed in an area of high humidity,
dust, or dirt, the frequency of maintenance inspections
should be increased. Under extremely adverse conditions,
monthly inspections are recommended.
The maintenance inspection should begin with an overall
visual check. If dirt, grease, or any other foreign material
is found on or in the breaker, it should be thoroughly and
carefully removed. Do not use solvents on insulating mate-
rial.
A rotating program providing for a periodic withdrawal
from service of each breaker in turn for inspection and
maintenance is an excellent means of establishing a high
level of service reliability. In such cases, one or more spare
breakers and all accessories should be available during the
maintenance inspection to replace any breaker that may
be removed for repairs.
NN N N
OO O O
TT T T
EE E E
::: : When ordering spare parts, always enclose com-
plete information from the breaker name plate, includ-
ing the breaker’s serial number.
4–2 Lubrication
Moderate lubrication is all that is required for most circuit
breakers. Mechanical bearing points and sliding surfaces
should be lubricated at the regular inspection periods
with a thin film of molybdenum disulfide (Molykote G) or
Mobil 28 grease. GE recommends the use of kerosene for
removing hardened grease and dirt from the latch and
bearing surfaces. All excess lubricant should be removed
to avoid any contamination of dirt or dust.
CC C C
AA A A
UU U U
TT T T
II I I
OO O O
NN N N
::: : Under no circumstances should lubricant be
applied to contact areas. 
						

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