S&C Omni-Rupter Series Owner's manual

October 26, 2020
© S&C Electric Company 2011-2020, all rights reserved Instruction Sheet 765-510
Omni-Rupter®Switch
Outdoor Distribution
(14.4 kV through 34.5 kV)
Three-Pole Side-Break Integer Style
Rotating Operating Mechanism
Upright, Upright Extra Mounting Clearance, Triangular, and
Inverted Mounting Configurations
Upright Mounting Configuration
Triangular Mounting Configuration
Inverted Mounting Configuration
Installation and Operation
Table of Contents
Section Page Section Page
Introduction
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating Considerations. . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet. . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information
Understanding Safety-Alert Messages. . . . . . . . . . . 4
Following Safety Instructions . . . . . . . . . . . . . . . . . . 4
Replacement Instructions and Labels . . . . . . . . . . . 4
Location of Safety Labels . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipping and Handling
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation
Operating Pipe Preparation . . . . . . . . . . . . . . . . . . . 9
Mounting to Wood. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the Switch Assembly. . . . . . . . . . . . . . . . .10
Installing the Optional Pole Band . . . . . . . . . . . . . . .13
Installing the Vertical Operating Pipe . . . . . . . . . . .14
Installing the Operating Handle . . . . . . . . . . . . . . . .16
Installing the Optional Phase-to-Ground
Wildlife Protection . . . . . . . . . . . . . . . . . . . . . . . .18
Installing the Base Covers . . . . . . . . . . . . . . . . . . . .19
Installing the Wildlife Disks . . . . . . . . . . . . . . . . . . 20
Dead-Ending Conductors . . . . . . . . . . . . . . . . . . . . 24
Connecting High-Voltage Conductors . . . . . . . . . . 24
Locking the Operating Handle . . . . . . . . . . . . . . . . 26
Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . 28
Operation
To Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
To Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

2 S&C Instruction Sheet 765-510
Introduction
Qualified Persons WARNING
Only qualified persons who are knowledgeable in the installation, operation, and
maintenance of overhead and underground electric distribution equipment, along
with all associated hazards, may install, operate, and maintain the equipment covered
by this publication. A qualified person is someone who is trained and competent in:
• The skills and techniques necessary to distinguish exposed live parts from nonlive
parts of electrical equipment
• The skills and techniques necessary to determine the proper approach distances
corresponding to the voltages to which the qualified person will be exposed
• The proper use of special precautionary techniques, personal protective equipment,
insulated and shielding materials, and insulated tools for working on or near exposed
energized parts of electrical equipment
These instructions are intended ONLY for such qualified persons. They are not
intended to be a substitute for adequate training and experience in safety procedures
for this type of equipment.
Operating
Considerations
Circuit-making and circuit-breaking are involved in the normal operation of these
interrupter switches and, as a result, precautionary “partway” opening or closing is
undesirable. To operate manually, swing the operating handle through its full stroke
without hesitation. Do not assume the operating-handle position necessarily indicates
the Open or Closed position of the interrupter-switch blades. Upon completion of an
opening or closing operation, visually check the position of the interrupter-switch blades
to determine the intended position has been attained, then tag or padlock the operating
handle in accordance with standard system operating procedures. In all cases make
certain the operating handle is locked before “walking away.”
Note: These interrupter switches are not intended for breaking fault currents.
If the switch is covered in ice or snow, do not “chop” the switch between the Open and
Closed position to dislodge ice and snow. 14.4-kV and 25-kV Omni-Rupter Switches in
the upright and triangular configuration are capable of being opened and closed under
¾-inch (19-mm) ice formation. 14.4-kV and 25-kV switches in the inverted mounting con-
figuration have a ¾-inch (19-mm) ice-break capability with ice shields.
Read this
Instruction Sheet NOTICE
Thoroughly and carefully read this instruction sheet and all materials included in
the product’s instruction handbook before installing or operating your Omni-Rupter
Switches. Familiarize yourself with the Safety Information and Safety Precautions on
pages 3 through 5. The latest version of this publication is available online in PDF
format at sandc.com/en/support/product-literature/.
Retain this
Instruction Sheet
This instruction sheet is a permanent part of your Omni-Rupter Switch. Designate a
location where you can easily retrieve and refer to this publication.

S&C Instruction Sheet 765-510 3
Introduction
Proper Application WARNING
The equipment in this publication is only intended for a specific (application or
applications). The application must be within the ratings furnished for the equipment.
Ratings for the Omni-Rupter Switch are listed in the ratings table in Specification
Bulletin 765-31.
In most applications, these interrupter switches are capable of switching rated continuous
load currents at full voltage. Consequently, no interlocking with secondary protective
equipment is required.
Omni-Rupter Switches rated 14.4 kV and 25 kV can carry up to 1000 amperes on a
continuous basis for ambient temperatures to 104°F (40°C) with a minimum wind velocity
of 2 feet per second. Emergency interrupting performance may be expected for currents
to 1000 amperes; refer to Specification Bulletin 765-31 for detailed information concern-
ing interrupting ratings.
Warranty The warranty and/or obligations described in S&C’s Price Sheet 150, “Standard Conditions
of Sale–Immediate Purchasers in the United States,” (or Price Sheet 153, “Standard
Conditions of Sale–Immediate Purchasers Outside the United States”), plus any special
warranty provisions, as set forth in the applicable product-line specication bulletin,
are exclusive. The remedies provided in the former for breach of these warranties shall
constitute the immediate purchaser’s or end user’s exclusive remedy and a fulllment of
the seller’s entire liability. In no event shall the seller’s liability to the immediate purchaser
or end user exceed the price of the specic product that gives rise to the immediate pur-
chaser’s or end user’s claim. All other warranties, whether express or implied or arising
by operation of law, course of dealing, usage of trade or otherwise, are excluded. The
only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE
ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION
PROVIDED IN PRICE SHEET 150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE
IMMEDIATE PURCHASER AND END USER, AS DEFINED THEREIN. OTHER THAN AN
END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR
PROMISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION
THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE
SHEET 150 (or PRICE SHEET 153).

4 S&C Instruction Sheet 765-510
Safety Information
Understanding
Safety-Alert
Messages
Several types of safety-alert messages may appear throughout this instruction sheet and
on labels and tags attached to your Omni-Rupter Switch. Familiarize yourself with these
types of messages and the importance of these various signal words:
DANGER
“DANGER” identifies the most serious and immediate hazards that will likely result in
serious personal injury or death if instructions, including recommended precautions,
are not followed.
WARNING
“WARNING” identifies hazards or unsafe practices that can result in serious personal
injury or death if instructions, including recommended precautions, are not followed.
CAUTION
“CAUTION” identifies hazards or unsafe practices that can result in minor personal
injury if instructions, including recommended precautions, are not followed.
NOTICE
“NOTICE” identifies important procedures or requirements that can result in product
or property damage if instructions are not followed.
Following Safety
Instructions
If you do not understand any portion of this instruction sheet and need assistance, contact
your nearest S&C Sales Ofce or S&C Authorized Distributor. Their telephone numbers
are listed on S&C’s website sandc.com, or call the S&C Global Support and Monitoring
Center at 1-888-762-1100.
NOTICE
Read this instruction sheet thoroughly and carefully
before installing an Omni-Rupter Switch.
Replacement
Instructions
and Labels
If additional copies of this instruction sheet are needed, contact your nearest S&C Sales
Ofce, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.
It is important that any missing, damaged, or faded labels on the equipment be replaced
immediately. Replacement labels are available by contacting your nearest S&C Sales
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

S&C Instruction Sheet 765-510 5
Location of Safety Labels
Safety Information
Reorder Information for Safety Labels
Location Safety Alert Message Description Number
ADANGER Switches may be energized from either side and with blades in any position. G-6580-2●
BWARNING Lifting Instructions G-9377■
CWARNING Lifting Instructions G-9379■
DNOTICE Instructions for Connecting Conductors to Terminal Pads G-9391■
EWARNING Lifting Instructions G-10218■
●This label is placed on both sides of switch base on opposite ends. ■This tag is to be removed and discarded after the switch is installed
and adjusted.
B
A
D
A
C
D
E
A
D

6 S&C Instruction Sheet 765-510
Safety Precautions
DANGER
Omni-Rupter Switches operate at high voltage. Failure to observe these
precautions will result in serious personal injury or death.
Some of these precautions may differ from company operating procedures and
rules. Where a discrepancy exists, users should follow their company’s operating
procedures and rules.
1. QUALIFIED PERSONS. Access to switches and
controls must be restricted only to qualified persons.
See the “Qualified Persons” section on page 2.
2. SAFETY PROCEDURES. Always follow safe
operating procedures and rules.
3. PERSONAL PROTECTIVE EQUIPMENT. Always
use suitable protective equipment, such as rubber
gloves, rubber mats, hard hats, safety glasses, and
flash clothing, in accordance with safe operating
procedures and rules.
4. SAFETY LABELS AND TAGS. Do not remove or
obscure any of the “DANGER,” “WARNING,”
“CAUTION,” or “NOTICE” labels and tags. Remove
tags ONLY if instructed to do so.
5. ENERGIZED COMPONENTS. Always consider
all parts live until de-energized, tested, and
grounded.
6. INTERRUPTER SWITCH POSITION. Always
confirm the Open/Close position of interrupter
switches by visually observing the position of the
blades. Switches may be energized from either side
and with the blades in any position.
7. MAINTAINING PROPER CLEARANCE. Always
maintain proper clearance from energized
components.
8. OPERATION. Circuit-making and circuit-breaking
are involved in the normal operation of this
interrupter switch and, as a result, “partway”
opening or closing is undesirable. To operate, swing
theoperatinghandlethroughitsfull travelvigorously
and without hesitation. See the "Operation" section
on page 31.

S&C Instruction Sheet 765-510 7
Shipping and Handling
Packing
Study the erection drawing carefully and check the bill of
materials to make sure all listed parts are at hand.
When a standard mounting arrangement is specified,
the shipment will include:
• A three-pole interrupter switch, complete with
interphase drive, factory assembled on a single base
• Four 6-feet 10-inch (208-cm) vertical operating pipe sec-
tions, predrilled, where required, for attachment to the
universal couplings
• Miscellaneous mounting hardware (less through-bolts)
for securing the Omni-Rupter Switch to the pole
• The appropriate set of operating-mechanism
components for the vertical operating pipe; e.g. handle,
guide bearings, and couplings—each tagged and keyed
to the bill of materials for ready identication
• If a standard minor modication of a standard mount-
ing arrangement is specied, the appropriate parts, as
identied in the bill of materials under sufx “-M,” “-S1,”
“-S2,” “-S6,” or “-S6L” will be included with the operating-
mechanism components. Specically, the modications
designated by these sufxes are:
-M Mounting provisions and modications for power
operation using the 6801M Automatic Switch Operator
-S1 One 2½ -inch (67-mm) diameter tubular berglass
insulating section in vertical operating shaft
-S2 One Cypoxy™ Insulator unit in vertical operating
shaft
-S6 Key interlock—single lock for “locked open”
application
-S6L Provisions only for key interlocks—mounting
bracket for interlock
“-V1,” “-V2,” or “-V3”—adds (one, two, or three respec-
tively) extra 6-foot 10-inch (208-cm) lengths of pipe and
includes the appropriate number of extra couplings and
guides
• A detailed erection drawing for the Omni-Rupter Switch
will be found in a water-resistant envelope shipped with
the switch (If a standard mounting arrangement is to
be used, this erection drawing is a printed sheet. This
same sheet is also furnished when a standard minor
modification of a standard mounting arrangement
is to be used. In the latter case, a copy of RD-7397,
“Omni-Rupter Switch Standard Minor Modications
for R4 Switches,” is included.)
Drawings for standard mounting arrangements show
only minimum or suggested locating dimensions for the
vertical-operating-pipe guide bearings and the operating-
handle assembly. Specific locations are to be determined
either on the job or by the user’s engineering department.
Inspection
Examine the shipment for external evidence of damage as
soon after receipt as possible, preferably before removal
from the carrier’s conveyance. Check the bill of lading to
make sure all listed shipping skids, crates, and containers
are present:
If there is visible loss and/or damage:
1. Notify the delivering carrier immediately.
2. Ask for a carrier inspection.
3. Note the condition of shipment on all copies of the
delivery receipt.
4. File a claim with the carrier.
If concealed damage is discovered:
1. Notify the delivering carrier within 15 days of receipt
of shipment.
2. Ask for a carrier inspection.
3. File a claim with the carrier.
Also, notify S&C Electric Company in all instances of
loss and/or damage.

8 S&C Instruction Sheet 765-510
Shipping and Handling
Figure 1. The shipping crate.
Crate
Raised slots for lift forks
Handling
WARNING
DO NOT use the lifting bracket to lift the crated
switch from the truck or conveyance.
The lifting bracket will only hold the weight of the
switch and will NOT hold the weight of the crated
switch and associated packing materials.
Failure to uncrate the switch before lifting with the
lifting bracket may cause damage to the switch or
personal injury.
The crate is designed to be moved and lifted using a lift
truck. Raised slots on the bottom of the crate are provided
for the truck’s forks. See Figure 1.
For switches in the upright and inverted mounting
configurations: Upright, upright with extra mounting
pole clearance, and inverted mounting configuration
switches are provided with a single-point lifting bracket
permanently attached to the switch base. See Figure 2 on
page 10 and Figure 3 on page 11.
Secure the lifting slings to the switch before unbolting
the switch from its crate. Remove all packing materials
before lifting the switch.
CAUTION
For switches in the upright mounting
configurations: To maintain proper electrical
clearance, make sure the lifting bracket is placed in
the retracted (lowered) position after installation.
Failure to do so may increase risk of flashover.
For switches in the triangular mounting con-
figuration: Secure the lifting slings to the switch before
unbolting the switch from its crate. Remove all packing
materials before lifting the switch. DO NOT unbolt the
switch from the crate before attaching the lifting slings.

S&C Instruction Sheet 765-510 9
Installation
Operating Pipe Preparation
If desired, the vertical operating pipe can be cut to length
(if not precut at the factory) before proceeding to the job
site. The standard lengths of pipe supplied measure 6 feet
10 inches (208 cm). Cutting dimensions are shown on the
erection drawing.
Mounting to Wood
When mounting the switch and its operating mechanism
to a wood pole, S&C recommends suitably sized square
washers be placed under the nuts. S&C also recommends
using spring-type washers between the square washers
and nuts to compensate for wood-pole shrinkage and
thus maintain fastener tightness. Square and spring-type
washers are not included with the switch.
STEP 1. Drill two -inch diameter holes in the utility
pole at the desired height for mounting the
switch. Refer to the erection drawing for details.
STEP 2. Insert two ⅝-inch diameter through-bolts (not
furnished) in the holes drilled in Step 1 and
secure loosely with the necessary square
washers and nuts so the heads of the bolts
project sufciently from the face of the pole to
engage the switch-base mounting bracket.
Make sure the at washer for each bolt is
between the bolt head and the switch-base pole-
mounting bracket.

10 S&C Instruction Sheet 765-510
Mounting the Switch Assembly
Upright Mounting Configurations
WARNING
Lift the switch using the lifting bracket provided. Do
not allow lifting slings to stress switch parts. Avoid
allowing the switch to swing while lifting.
Lifting the switch by the live parts or pole-unit bases
will damage the switch. Rough handling may cause
damage to the blades and contacts.
Failure to lift the switch properly can result in
switch damage, causing improper operation,
arcing, or electrical shock.
Note: For inverted mounting configuration, Step 3 is on
page 11. For triangular mounting configuration, Step 3 is
on page 12.
STEP 3. Switches in the upright mounting conguration
are provided with a retractable single-point
lifting bracket permanently attached to the
switch base. See Figure 2.
(a) Make sure the switch is fully closed.
(b) Attach lifting slings only to the single-point
lifting bracket.
(c) Lift the switch as shown in Figure 2 until the
lifting slings are just taut.
(d) Unbolt the switch base from the shipping
skid.
(e) Slowly and carefully lift the switch to the
proper mounting height.
(f) Guide the switch so the through-bolts
projecting from the utility pole slip into the
holes in the switch’s pole-mounting bracket.
(The pole-mounting bracket is provided
with a keyhole and an open slotted hole for
ease of installation.)
(g) Lower the switch so the pole-mounting
bracket bears down on the through-bolts.
(h) Securely tighten the through-bolts. Install
the two -inch diameter lag screws on the
front of the mounting bracket, diagonally
from each other. See Figure 2.
(i) Remove the lifting sling from the single-
point lifting bracket. Lower the lifting
bracket.
Installation
Figure 2. Hoisting the upright mounting configuration
Omni-Rupter Switch into position.
Keyhole
Keyhole
Lifting bracket
Slotted hole
Lag screw
Lag screw
(j) If desired, a crossarm brace(user-furnished)
may be attached to the base. Mounting
brackets for crossarm braces must be
specied separately. Contact your local S&C
Sales Ofce for details.
CAUTION
To maintain proper electrical clearance,
make sure the lifting bracket is placed in the
retracted (lowered) position after installation.
Failure to do so may increase risk of
flashover.

S&C Instruction Sheet 765-510 11
Figure 3. Hoisting the inverted mounting configuration
Omni-Rupter Switch into position.
Lifting bracket
Inverted Mounting Configuration
WARNING
Lift the switch using the lifting bracket provided. Do
not allow lifting slings to stress switch parts. Avoid
allowing the switch to swing while lifting.
Lifting the switch by the base or mounting bracket may
cause damage to the switch. Rough handling may
cause damage to the blades and contacts.
Failure to lift the switch properly can result in
switch damage, causing improper operation,
arcing, or electrical shock.
STEP 3 Switchesin theinverted mounting conguration
are provided with a single-point lifting bracket
permanently attached to the switch base. See
Figure 3. To install the switch onto the pole:
(a) Make sure the switch is fully closed.
(b) Attach lifting slings ONLY to the single-
point lifting bracket.
(c) Lift the switch as shown in Figure 3 until the
lifting slings are just taut.
(d) Unbolt the switch base from the shipping
supports.
(e) Slowly and carefully lift the switch to the
proper mounting height.
(f) Guide the switch so the through-bolts
projecting from the utility pole slip into the
holes in the switch’s pole-mounting bracket.
(The pole-mounting bracket is provided with
a keyhole and an open slotted hole for ease of
installation.)
(g) Lower the switch so the pole-mounting
bracket bears down on the through-bolts.
(h) Securely tighten the through-bolts. Install
the two -inch diameter lag screws on the
front of the mounting bracket, diagonally
from each other. See Figure 3.
(i) Remove the lifting sling from the single-
point lifting bracket.
If desired, a crossarm brace (user-
furnished) may be attached to the base.
Mounting brackets for crossarm braces
must be specied separately. Contact your
local S&C Sales Ofce for details.
Key hole
Lag screws (2)
opposite screw
not shown
not shown
Installation

12 S&C Instruction Sheet 765-510
Triangular Mounting Configuration
WARNING
Lift the switch by the attaching lifting slings to the
vertical switch support member by looping around
the dead-ending bracket and the switch mounting
weldment. Do not allow lifting slings to stress switch
parts. Avoid allowing the switch to swing while lifting.
Lifting the switch by the live parts or pole-unit bases
will damage the switch. Rough handling may cause
damage to the blades and contacts.
Failure to lift the switch properly can result in
switch damage, causing improper operation,
arcing, or electrical shock.
STEP 3
(a) Make sure the switch is fully closed.
(b) Attach the lifting slings only to the vertical
switch support member by looping around
the dead-ending bracket and the switch
mounting weldment.
(c) Lift the switch as shown in Figure 4 until the
lifting slings are just taut.
(d) Unbolt the switch from the shipping skid.
(e) Slowly and carefully lift the switch to the
proper mounting height.
(f) Guide the switch so the through-bolts
projecting from the utility pole slip into the
holes in the switch’s pole-mounting bracket.
(The pole-mounting bracket is provided
with a keyhole and an open slotted hole for
ease of installation.)
(g) Securely tighten the through-bolts. Install
the two -inch diameter lag screws on the
front of the mounting bracket, diagonally
from each other. See Figure 5.
(h) Remove the lifting slings from the switch.
If desired, a crossarm brace (user-furnished)
may be attached to the base for switches in the
triangular mounting configuration. Mounting
brackets for crossarm braces must be specified
separately. Consult your nearest S&C Sales
Office for details.
Figure 4. Hoisting the triangular mounting configuration
Omni-Rupter Switch into position.
Lifting slings
Vertical support
member
Installation
Figure 5. A typical pole-mounting bracket attachment detail
(triangular mounting configuration illustrated).
●Install two lag screws on front of the mounting bracket.
½-inch lag screw●
Through-bolts
(provided by
customer)
Pole
mounting
bracket
Through-
bolt
bolt
Through-
Through-

S&C Instruction Sheet 765-510 13
Figure 6. Typical pole-band attachment detail (vertical
mounting configuration illustrated).
●Install four lag screws on the front of the mounting bracket.
Install one lag screw to the center of the pole band.
½-inch lag
screw●
Pole mounting
bracket
Pole band
¼ ×1 ×3-inch
stiffening block
J-bolt
Through-bolt
Installation
Installing the Optional Pole Band
STEP 4. Secure the pole-band (optional) to the mounting
bracketontheswitch,usingtheJ-boltsprovided.
See Figure 6. Two ¼×1 ×3-inch stiffening
blocks are furnished to be used behind the pole-
band anges and underneath the J-bolt nuts.
Fasten the pole band to the back side of the pole
through the hole in the center of the band using
one of the ve ½ -inch diameter lag screws
provided. Then, fasten the mounting bracket to
the pole using the four remaining ½ -inch lag
screws, as shown in Figure6.

14 S&C Instruction Sheet 765-510
Figure 7. Attaching the uppermost vertical operating pipe to
the switch for an upright mounting configuration.
Vertical operating
pipe
Universal coupling
Installing the Vertical Operating Pipe
S&C recommends assembling each coupling as work
progresses from the top down, starting with the univer-
sal coupling connecting the switch to the upper section
of vertical operating pipe. Continue with the universal
coupling between the upper section of vertical operating
pipe and the rst lower section, the splice couplings con-
necting the lower sections of pipe to each other, and end
with the rotating operating handle or 6801M Automatic
Switch Operator.
Variations in the surface and height of the wood pole
and/or operating pipe are easier to adjust for when the
switch is installed in this manner.
NOTICE
Installing Piercing Set Screw
This equipment uses piercing set screws to couple
the operating mechanism to the operating pipe and to
provide stability to the couplings joining one or more
lengths of pipe.
Before assembling a coupling, back the piercing
set screw out of the coupling so the tip does not
protrude into the body of the coupling. This ensures
the coupling’s clamp screws can be fully tightened.
After the operator assembly is in place, tighten the
piercing set screw, piercing the pipe, and continue
until resistance is felt. It is not necessary to fully
tighten the piercing set screw.
STEP 5. Locate the universal coupling shipped in the
carton of switch ED parts. Attach the universal
coupling to the rotating shaft of the toggle
mechanism using the ½-inch stainless steel pin,
atwasher, and cotter pin provided. See Figure
7 or 8, as applicable. Install the uppermost
section of the predrilled vertical operating pipe
in the universal coupling as shown. Then, secure
the vertical operating pipe to the universal
coupling using the ½× 13 × 2½-inch bolt,
atwasher, and nut provided. If only one
vertical pipe section is used, omit Steps 6
through 9 and proceed to Step 10.
Figure 8. Attaching the uppermost vertical operating pipe to
the switch for triangular mounting configuration.
Universal
coupling
Vertical
operating pipe
Installation

S&C Instruction Sheet 765-510 15
Figure 9. The guide-bearing assembly and universal coupling
(upper position).
Uppermost pipe section
½× 1× 2½-inch bolts (2)
Universal coupling
(splice couplings used
below this group)
Guide-bearing
assembly
Alignment-adjusting slots
Gaining channel
(used on round poles only)
Figure 10. The guide-bearing assembly and splice coupling
(intermediate positions).
Gaining channel
(used on round poles only)
Splice coupling
Guide bearing assembly
Alignment-adjusting slots
STEP 6. Install a universal coupling on the lower end of
the uppermost section of the vertical operating
pipe in the fashion described above using
the ½× 13 × 2½-inch bolt and ½—13 nut
provided. See Figure 9.
STEP 7. Position and install the guide-bearing assembly
on the pole in accordance with the dimension
shown on the erection drawing.
STEP 8. Pass the next section of vertical operating pipe
up through the guide bearing and attach it to the
universal coupling on the lower end of the
uppermost vertical operating pipe section. See
Figure 9.
STEP 9. Repeat Step 7 if additional guide bearings are
specied. Intermediate sections of pipe are held
together using a splice coupling. See Figure10.
Insert the splice coupling inside the upper
section of pipe and align the holes. Insert the
ribbed neck carriage bolt through the pipe and
coupling and fasten with the supplied nut and
washer. Tighten the carriage bolt until the
ribbed-neck engages with the holes in both the
pipe and coupling. Then, insert the lower section
of the splice coupling into the next section of
pipe. Align the holes and insert the second
ribbed-neck carriage bolt through the pipe and
coupling, and fasten in the same manner as the
 r s t b o l t .
Installation

16 S&C Instruction Sheet 765-510
Installing the Operating Handle
NOTICE
If ordered with provisions for power operation with the
6801M Automatic Switch Operator (catalog number
suffix “-M”), omit steps 10 through 13 and proceed
with the installation steps described in the 6801M
Operator Installation Instructions (S&C Instruction
Sheet 1045M-510). Once the 6801M operator has
been installed, proceed with step 14 of this instruction
sheet.
STEP 10. ● Install the operating-handle assembly on the
lowest section of vertical operating pipe at the
location indicated on the erection drawing.
Make sure the cutting tip of the piercing set
screw in the operating-handle assembly
does not protrude through the clamp when
installing the assembly on the vertical operating
pipe. After the operating-handle assembly is in
place, tighten the piercing set screw on the
operating-handle assembly, piercing the pipe.
Continue turning until a rm resistance is felt.
See Figure 11.
Slide the foot-bearing assembly onto the
lowest vertical operating pipe section and bolt it
to the pole at the position shown on the erection
drawing. At the same time, use one of the
mounting bolts to attach one end of the ground-
ing strap (the end with the grounding connector
attached) to the foot-bearing assembly■.
If necessary to compensate for the taper of
the wood pole and to keep the vertical operating
pipe aligned and plumb, shift the guide bearings
toward or away from the pole. Alignment slots
are provided for this purpose. See Figures 9 and
10 on page 15.
STEP 11. Fasten the free end of the grounding strap to the
lowest vertical operating pipe section a few
inches above the operating-handle assembly
(or key interlock) with the U-bolt connector
provided for this purpose. Then, connect the
lower end of the strap to a suitable earth ground,
fastening the grounding connector provided at
that end of the strap■.See Figure 11.
Figure 11. A foot-bearing assembly and operating-handle
assembly.
Vertical operating pipe
section
Swing-away hasps for
padlocking
Handle
Foot bearing support plate
Piercing set screw
Gaining channel (used
on round poles only)
Grounding connector (for
earth ground connection—
see text)■
Grounding strap
●When a key interlock is furnished (standard minor
modification suffix “-S6”), refer to Step 20 on page 26 at this point.
■The grounding recommendations described in this document may
differ from the standard operating and safety procedures of certain
electric utility companies. Where a discrepancy exists, the operating
procedures of the electric utility apply.
Installation

S&C Instruction Sheet 765-510 17
STEP 12. Open and close the interrupter switch slowly to
check that no operating difculties are
encountered caused by undetected damage in
shipping. (This applies only when checking for
alignment and complete closure; when in
service, the interrupter switch should be opened
or closed vigorously through its full travel
without hesitation at any point.)
STEP 13.
CAUTION
Adjust the stop plates to remove all excess
play from the operating mechanism and
to attain proper “windup” tension before
energizing the switch.
Slack in the operating pipe may allow the
vertical operating pipe to move or vibrate
during high winds or inclement weather.
Failure to properly adjust the handle may
cause contact overheating or arcing,
damaging the blade contacts. Injury to
operating personnel may result.
Loosen the bolts that secure the adjustable stop
plates to the foot-bearing support plate. See
Figure 12. Place the switch in the fully Open
position and adjust the open-position stop plate
so the handle, when lowered, ts into the open-
position slot. Mark on the support plate the
location of the open-position stop plate.
Figure 12. The foot-bearing assembly and operating-handle
assembly.
Foot bearing support plate
Adjustable stop plates
Installation
Fully close the switch and apply sufficient
pressure to the handle in the closing direction
to remove all play in the operating-pipe linkage.
Adjust the closed-position stop plate so the
handle will require even greater pressure to
force it into the closed-position slot. Mark on the
support plate the location of the closed-position
stop plate.
While holding both stop plates in the previ-
ously marked positions, torque the bolts to
secure the stop plates to the support plate. Move
the handle to the Switch-Open position and
verify the handle, when lowered, fits firmly into
the open-position slot.
Move the handle to the Switch-Closed
position. Verify all play in the operating-pipe
linkage has been taken up before the handle
can be lowered into the closed-position slot
and substantial pressure is required to force the
handle into the closed-position slot.
STEP 14. Make sure all clamp bolts and piercing set
screws have been torqued to nal tightness.

18 S&C Instruction Sheet 765-510
Installing the Optional Phase-to-Ground
Wildlife Protection
(Catalog Number Suffix “-W”)
DANGER
De-energize the switch and ground it at all six
terminals before installing the wildlife protection
option.
The Wildlife Protection option is not designed to be
installed on energized equipment.
Failure to do so could lead to serious injury or
death.
The phase-to-ground Wildlife Protection option helps
prevent climbing and perching animals from making
phase-to-grounded part contact. See Figures 13 and 14.
A typical wildlife protection installation includes:
• Six wildlife disks
On switches in the upright mounting
configuration:
• One berglass interphase operating rod, pre-installed
• One pole-mounting bracket cover
• Two base covers (three base covers on switches with
extra mounting-pole clearance) (Base covers are not
included on switches with insulated bases.)
NOTICE
S&C recommends installing the Wildlife Protection
option after the switch is secured to the utility pole.
Damage to the Wildlife Protection option may occur
if lifting slings strain the wildlife disks during handling.
Figures 13 and 14 illustrate a typical installation of the
Wildlife Protection option. The fiberglass operating
rod will be pre-installed at the factory. Consult the RD
drawing accompanying the switch-installation instruc-
tions for details specific to your switch that may differ
from these instructions that begin on page 19. Following
are instructions for a typical field installation of the
Wildlife Protection option.
Figure 13. A 14.4-kV Omni-Rupter with optional wildlife
protection (catalog number suffix “-W”), upright mounting
configuration.
Wildlife disks
Base cover
Wildlife disks
Fiberglass interphase
operating rod
Figure 14. A 14.4-kV Omni-Rupter switch with optional
wildlife protection (catalog number suffix “-W”), inverted
mounting configuration, single-phase shown.
Insulated
operating rod
Wildlife disks
Installation

S&C Instruction Sheet 765-510 19
Installing the Base Covers
Base covers are only used on switches in the upright
mounting conguration. Skip to “Installing the Wildlife
Disks” section on page 20 for switches in the inverted
mounting conguration.
STEP 15. With the switch in the Closed position, place
the base covers onto the steel base of the switch
in the positions shown on the associated RD
drawing. If optional surge arrester mounting
provisions (catalog number sufx “-A1” or “-A2”)
have been specied for the switch, cutouts will
be provided in the base covers to t around the
arrester mounting brackets.
STEP 16. Hook one end of the spring clip assembly into
the lip on the edge of one side of the base cover.
See Figure 15. Bring the spring clip underneath
the switch base and stretch it until it can be
hooked into the lip on the edge of the opposite
side of the base cover. Make sure the spring clip
is approximately ½-inch (13 mm) from the edge
of the base cover. See Figure 16. Install the
remaining spring clips on their respective base
covers in accordance with the supplied RD
drawing.
Figure 16. Make sure clips are installed approximately ½-inch
(13 mm) from the edge of the cover.
½-inch (13 mm) from edge
Figure 15. Hook one end of spring clip into the base cover
lip. Stretch underneath the base and hook the clip on the
opposite side.
Base cover
Spring clip
Switch base
Installation

20 S&C Instruction Sheet 765-510
Installing the Wildlife Disks
Before installing the wildlife disks, determine the proper
placement of the disks on the switch blade and contact
insulators.
On Upright 14.4-kV Omni-Rupter Switches
(Porcelain and Cypoxy™ Insulators)
Install the wildlife disk to the bottom skirt root of the
insulator on both the blade and contact ends of the switch.
When the wildlife disks are properly installed, the disks
will overlap slightly, as shown in Figure 17.
On Upright 25-kV Omni-Rupter Switches
(Porcelain and Cypoxy™ Insulators)
Blade end of the switch: Install the wildlife disk on the
bottom skirt root of the insulator.
Contact-end of the switch: Count up two skirts from
the base and install the wildlife disk to the insulator
on the blade-end. When the wildlife disks are installed
properly, they will be at approximately the same height.
See Figure 18.
On Upright 34.5-kV Omni-Rupter Switches
(Porcelain and Cypoxy Insulators)
Count up two skirts from the base and install the wildlife
disks on the third skirt root from the base of the insulator
on both the blade and contact ends of the switch. When
the wildlife disks are properly installed, the disks will
overlap slightly.
Figure 18. Wildlife disk placement on 25-kV Omni-Rupter
Switches, upright mounting configuration.
Contact
end Blade end
Disks at same
height
Install two skirts
from bottom skirt
root
Insulator
Insulator
Insulator
Install disk on
bottom skirt root
Figure 17. Wildlife disk placement on 14.4-kV Omni-Rupter
Switches, upright mounting configuration.
Contact end Blade end
Disks overlap
blade-end over
contact-end Insulator
Insulator
Insulator
Install disk on
bottom skirt root Install disk on
bottom skirt root
Installation