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Siemens PC2637 Installation Instructions page 2

Circuit breaker plug-in adapters for “e” & “cle” frame circuit breakers

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Siemens Energy & Automation, Inc.
Bellefontaine, OH 43311 U.S.A.
2 of 2
Page
60303A02
Pc. No.
Installation Instructions
Plug-In Adapter: (Fig. 3)
5. Align plug-in adapter (2) with cutouts in switch-
board mounting plate (or customer's mounting
means as previously prepared in step 2) and
secure in place with 1/4" screws (3) washers (4)
and (5) and hex nuts (6). Tighten to 55 ± 5 In.-Lb.
[6.21N/m].
Final Assembly: (Fig. 6)
6. Make bus and/or cable connection to rear
of mounting block studs using hex nuts (15)
furnished to secure this connection. Attach
bus or connector to mounting block studs
by removing one nut (15) from the top of
each stud. Do not allow this nut (15) to come
within 1/8 inch of the nut resting on the tower
(17). Do not tighten nut (17) as it is preset at
the factory. Secure the nut under the bus or
connector with a wrench to keep it from ro-
tating. Replace the nut (15) that you had
previously removed and torque to 35 ± 2
In.-Lb. [3.95 N/m] making certain not to al-
low the nut being retained with the wrench
to rotate.
CAUTION: Make certain that breaker operat-
ing handle is in the Off position before proceed-
ing with the next step.
Breaker Preparation: (Fig. 4)
Remove Pressure Wire Connectors From
Breaker If Present
7. Select line side breaker stud and insulator (11)
and (12) and assemble to terminals, from back
of breaker, and secure to breaker terminals with
#12-24 screw and washers (7), (8), (9) as
shown in Fig. 4. Recommended tightening
torque for these screws is 2½ - 3 ft. lbs. [3.39-
4.07 N/m]to assure good electrical connection.
Repeat this procedure for the remaining line and
load connections, breaker studs and insulators.
8. Insert line end shields (10) into slots provided
at line end breaker.
9. Add accessory warning labels (13), (14) to top
of breaker as indicated in Fig. 5.
10. Align breaker with plug-in adapter and force male
studs (11) over female tulip clips in plug-in
adapter until breaker base bottoms against plug-
in adapter. Secure breaker in place with #8 X
4.06 long mounting screws (16). Torque to 12 ±
2 In.-Lb. [1.36N/m]
11. If installation requires the use of front panel trim,
provide cutout for breaker escutcheon as
shown in Fig. 7.
Fig. 3
Load Side
[40.4]
[53.3]
[50.3]
[37.3]
Line Side
Fig. 4
POLE
X
Y
2.28
1.50
Center
[57.9]
[38.1]
4.50
3.62
Left & Right
[114.3]
[91.9]
3/8 - 16 Studs
Fig. 6
Hazardous voltage.
Will cause death or
severe injury.
Turn power off
supplying device before
installing.
1/4" Mtg. [M6]
Hardware
(By Customer)
DIMENSIONS
INCHES
[MILLIMETERS]
Alternate
Fig. 5
Breaker Mounting
[
115.8]
Location
[72.6]
[17.8]
[36.3]
Front
Panel Trim
Fig. 7
[35.0]
[57.1]

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This manual is also suitable for:

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