Cutler-Hammer Series C F-Frame Rotary handle mechanism Instructions

I.L. 15594E
File 29-000
Instructions for Drilling and Assembling Series C Rotary Handle Mechanism
for F-Frame Series C Circuit Breakers, Molded Case Switches, and HMCPs
DESCRIPTION
WARNING
DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON EQUIPMENT WHILE IT IS ENERGIZED.
DEATH, SEVERE PERSONAL INJURY, OR SUBSTANTIAL PROPERTY DAMAGE CAN RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT. ALWAYS
VERIFY THAT NO VOLTAGE IS PRESENT BEFORE
PROCEEDING WITH THE TASK, AND ALWAYS FOLLOW GENERALLY ACCEPTED SAFETY PROCEDURES.
The Cutler-Hammer general purpose Rotary handle
mechanism is suitable for use with NEMA 1, 3R, 12, 4,
and 4X fabricated enclosures. It is designed for use with
Series C - F-Frame Circuit Breakers, Molded Case
Switches, and Motor Circuit Protectors (HMCP) up to 150
amps.
Required for a standard application are the operating
handle, shaft, and mechanism.
CUTLER-HAMMER IS NOT LIABLE FOR THE MISAPPLICATION OR MISINSTALLATION OF ITS PRODUCTS.
The operating handle has been designed to meet NFPA
79 requirements. It may be mounted in either the horizontal or vertical direction. The handle was ergonomically
designed with extra clearance for a “gloved hand” to
operate. It may be padlocked in the Off position utilizing 3
padlocks (.312 Max).
The user is cautioned to observe all recommendations,
warnings, and cautions relating to the safety of personnel
and equipment as well as all general and local health and
safety laws, codes, and procedures.
The standard label on the operating handle indicates
ON/Tripped/OFF/Reset. To fulfill international requirements, an alternate handle may be ordered which indicates (I)/Tripped/(O)/Reset.
The recommendations and information contained herein
are based on Cutler-Hammer experience and judgment,
but should not be considered to be all-inclusive or covering every application or circumstance which may arise. If
any questions arise, contact Cutler-Hammer for further
information or instructions.
To meet the various enclosure depths, four variable depth
shafts are offered (6”, 12”, 16”, and 24”). Each shaft
includes a support brace to ensure proper alignment. In
addition, the 16” and 24” extra long shafts include an
adjustable support bracket.
The standard mechanism located on the breaker does
include means for internally locking the breaker in the
“Off” position with up to 3 padlocks each with a maximum
diameter of .312”.
As an option, an auxiliary switch is offered so that the
control panel builder may electrically indicate the status
of the breaker. This accessory would be mounted on the
mechanism and comes with 24” pigtail leads.
INSTALLATION INSTRUCTIONS:
The installation procedure consists of: drilling and modifying customer enclosure; installing the circuit breaker
and operating assembly; assembling the shaft to the
operating assembly, and handle assembly to the enclosure cover; testing function of installed handle mechanism. To install the handle mechanism, perform the
following steps.
Fig. 1-1 F Rotary Handle Mechanism Assembly
Effective July 1998 Supersedes I.L. 15594D dated September 1996
I.L. 15594E
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WARNING
WHEN INSTALLING A NEW HANDLE MECHANISM,
OR A NEW CIRCUIT BREAKER AND HANDLE MECHANISM IN AN EXISTING ELECTRICAL SYSTEM,
MAKE SURE THERE IS NO VOLTAGE PRESENT
WHERE WORK IS TO BE PERFORMED. SPECIAL
ATTENTION SHOULD BE PAID TO REVERSE FEED
APPLICATIONS TO ENSURE NO VOLTAGE IS
PRESENT. THE VOLTAGES IN ENERGIZED EQUIPMENT CAN CAUSE DEATH OR SEVERE PERSONAL
INJURY.
Installation of Circuit Breaker and Operating
Assembly
1. Determine position for circuit breaker in enclosure.
Drill and tap circuit breaker mounting holes in enclosure mounting surface as shown in Figure 2-1.
Fig. 2-1 Drill & Tapping Plan for F-Frame Breaker
2. Mount circuit breaker to enclosure using the two
shorter screws in the hardware kit. Insert screws and
lockwashers into two diagonally opposed circuit
breaker mounting holes and tighten securely into
tapped holes from step 1. (Fig. 2-2)
Fig. 2-2 F-Frame Breaker/Mechanism Assembly
Effective July 1998
I.L. 15594E
3. Turn circuit breaker to “OFF” position.
4. Measure panel depth “D” per Figure 3-1. If “D” is less
than 7” (179 mm), remove shaft support bracket from
operating assembly and discard.
5. Mount mechanism onto circuit breaker, ensuring
slide plate is engaged with the circuit breaker handle.
Insert the two longer screws, washers, and lockwashers from the hardware kit into the remaining circuit
breaker mounting holes. (Fig. 2-2)
Installation of Shaft to Operating Assembly
1. Using panel depth “D” from step 4, determine shaft
length by subtracting 3.00” (76.2 mm) from this
dimension.
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(vertical or horizontal handle placement, see Fig.
3-2). Insert set screw from hardware kit into pivot link
and torque to 50 Ib.-in.
5. If adjustable support extension is being used, tighten
securely at this time.
Installation of Handle Assembly onto Enclosure
Cover
1. To determine where to drill the enclosure door cover,
close the cover with moderate force in order to cause
the point of the shaft to scratch/mark the paint on the
inside of the door.
2. Prior to drilling the 1.50” (38 mm) Dia. hole in the
cover door, use correction factor per Table 4.1. Correction should be made from mark on door (step 1)
towards the hinge. Drill 1.50” (38 mm) Dia. hole.
Distance
From
Hinge
Correction
Flat Hinge
Offset Hinge
4
3/16” (4.8 mm)
9/16” (9.5 mm)
5
5/32” (4.0 mm)
7/16” (11.1 mm)
6
1/8” (3.2 mm)
11/32” (8.7 mm)
7
3/32” (2.4 mm)
9/32” (7.1 mm)
8
3/32” (2.4 mm)
1/4” (6.4 mm)
9
3/32” (2.4 mm)
7/32” (5.6 mm)
10
1/16” (1.6 mm)
3/16” (4.8 mm)
11
1/16” (1.6 mm)
3/16” (4.8 mm)
12
1/16” (1.6 mm)
5/32” (4.0 mm)
Table 4.1 Correction Factor Table
Fig. 3-1 Cutting Shaft to Length
2. Mark shaft, measuring length beginning at the
pointed end and cut to correct length. (Fig. 3-1)
3. If adjustable support extension is being used
(designed for 16” and 24” shaft lengths), install
loosely at this time. Remove screws from extension
and use to attach to shaft support bracket.
4. Place square end of shaft into square opening of die
cast pivot link on the operating mechanism attached
to the circuit breaker. Ensure pin is in shaft correctly
oriented with respect to anticipated handle position
Effective July 1998
3. After hole is drilled, close enclosure cover allowing
the shaft to stick through the opening. Check this
dimension per Figure 3-1. If dimension is not correct,
loosen the set screw holding the shaft in the die cast
pivot link and adjust such that the dimension is within
the required limits, and retighten set screw.
4. Close enclosure door. Cut out the dotted line of the
shaft on the template provided in the hardware kit or
in Figure 4-1. Do not cut out the handle mounting
screw holes. Place the template over the shaft ensuring the proper side is facing out. Align the template
with the shaft and mark the handle mounting holes
for the “F” frame breaker (dashed lines). Drill (4)
.281” (7.0 mm) diameter holes.
5. Place gasket, supplied in hardware kit, between handle assembly and door. Loosely drive the four
I.L. 15594E
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1/4-20 x 0.5 screws through both the door and gasket from the inside of the enclosure door cover and
into the handle assembly. Tighten evenly. For International handle styles, the handle mounting hardware is similar to the M6 x 1 x 12 mm screw if
misplaced.
j.
k.
Align handle assembly with shaft and close
enclosure door.
Switch handle mechanism to OPEN COVER
(RESET) position. Check to ensure breaker
resets.
Fig. 3-2 Handle Orientation
6. With power isolated from the circuit breaker, test
function of installed handle mechanism in the following manner:
a. Close enclosure door. Switch handle mechanism
to ON.
b. Check that handle mechanism switches circuit
breaker to ON position and that enclosure door
cannot be opened.
c. Switch handle mechanism to OFF position.
d. Check that handle mechanism switches circuit
breaker to OFF position and that enclosure door
cannot be opened.
e. Turn handle to OPEN COVER position and
ensure door opens.
f. Close enclosure door. Switch handle mechanism/circuit breaker to ON.
g. Turn interlock defeater counter clockwise with a
flat-blade screwdriver.
h. Open enclosure door.
i. Press Push-To-Trip button in the circuit breaker
trip unit with a small flat-blade screwdriver to trip
circuit breaker.
Effective July 1998
I.L. 15594E
Fig. 4-1 Full Size Drill Template
Effective July 1998
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I.L. 15594E
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NOTES
Effective July 1998
I.L. 15594E
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NOTES
Effective July 1998
I.L. 15594E
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Cutler-Hammer
Pittsburgh, Pennsylvania U.S.A.
Style No. 6648C70H06 Effective July 1998
Printed in U.S.A./CCI