681-31.pdf

S&C Vista

®

Underground Distribution Switchgear

Outdoor Distribution

S&C ELECTRIC COMPANY

SPECIFICATION BULLETIN

681-31

Page 1 of 17June 1, 2004s

Supersedes Specification Bulletin 681-31 dated 3-8-04 c

2004

Conditions of Sale

STANDARD:

Seller’s standard conditions of sale setforth in Price Sheet 150 apply.

SPECIAL TO THIS PRODUCT:

INCLUSIONS:

S&C Vista Underground DistributionSwitchgear features load-interrupter switches for switch-ing 600- or 900-ampere main feeders, and microprocessorcontrolled arc-spinners or vacuum fault interrupters forswitching and protection of 600- or 900-ampere main feed-ers and 200-, 600-, or 900-ampere taps, laterals, and sub-loops. These elbow-connected components are enclosedin a SF

6

-insulated, welded-steel tank, completely pro-tected from the environment. The switchgear is availablewith up to six ways (bus terminals, switches and/or faultinterrupters) in ratings through 38 kV and 25 kAsymmetrical.

The three-position (closed-open-grounded) load-interrupter switches are manually operated and providethree-pole live switching of 600- or 900-ampere three-phase circuits. These switches also provide a visiblegap when open and internal grounding for all threephases—without exposure to medium voltage or theneed to manipulate elbows. The 200-ampere, 600-ampere, or 900-ampere fault interrupters feature eitherarc-spinning contacts (15.5 kV, 12,500 symmetricalmodels) or vacuum interrupters in series with manuallyoperated three-position (closed-open-grounded) dis-connects (15.5 kA, 25 000 symmetrical, and all 29 kVand 38 kV models) for isolation and internal groundingof each phase.

Fault interrupters provide three-pole load switchingand fault interruption through 25 kA symmetrical, orsingle-pole load switching and fault interruptionthrough 12.5 kA symmetrical (for other possibleratings, refer to the nearest S&C Sales Office). Faultinterruption is initiated by a programmable overcurrentcontrol. The total clearing time (from initiation of thefault to total clearing) can be as fast as 40 milliseconds.For single-pole fault interrupters, the overcurrent con-trol can also be programmed to provide three-pole faultinterruption.

Large windows provide a clear view of the open gap,ground position, and ground bus . . . allowing the operatorto easily confirm the positions of the load-interrupterswitches and disconnects of the fault interrupters. Tripindicators, which are readily visible through the windows,are provided for the fault interrupters. Each unit of gear is

furnished with a manual handle to charge the operatingmechanisms and open, close, and ground the load-inter-rupter switches and fault interrupters. The operatingmechanisms operate independently of the speed of themanual handle and are designed to prevent inadvertentoperation from the closed position directly to the groundposition and vice versa. Operating shafts are padlockablein any position and can also be padlocked to prevent oper-ation to the ground position.

Terminals are equipped with 200-ampere-rated bushingwells or 600- or 900-ampere bushings (as specified). Bush-ing and bushing-well interfaces are in accordance withANSI/IEEE Standard 386 (ANSI Standard C119.2) toaccept all standard insulated connectors and inserts.

When optional voltage indication is specified, all rou-tine operating tasks—switching, voltage testing, andgrounding—can be accomplished by a single person with-out cable handling or exposure to medium voltage. Anoptional feature that combines voltage indication withprovisions for low-voltage phasing is also available. Cabletesting for faults can be performed through the back of auser-supplied elbow or through a user-supplied feed thruinsert eliminating the need for difficult cable handling orparking stands.

The microprocessor-based overcurrent control is pro-grammed using a personal computer connected to thecontrol through an adapter cable (listed in the table of“ACCESSORIES” on page 11). Power and input signals areprovided by current transformers. The control features avariety of time-current characteristic (TCC) curves—stan-dard “E” and “K” speed curves, innovative “coordinating”speed tap and main curves, and relay curves per IEEEC37.112-1996.

Coordinating-speed tap curves are used for faultinterrupters feeding subloop taps and are specificallydesigned to optimize coordination with load-side weaklink/backup current-limiting fuse combinations andsource-side relays with low time-dial settings. The coordi-nating-speed main curves are used for fault interrupterson main feeders and have a longer minimum responsetime and different shape to coordinate with tap-inter-rupter curves. Coordinating-speed curves have phase-overcurrent and ground-overcurrent settings. If desired,the ground-overcurrent setting can be turned off. (Aground-overcurrent setting is not available when the con-trol is programmed for single-pole tripping of the faultinterrupters.) These curves can be tailored to the applica-tion using a variety of instantaneous and definite-timesettings.

SPECIFICATIONS


681-31


Page 2 of 17June 1, 2004 s

S&C Vista

®



Vista switchgear is considerably smaller than tradi-tional air-insulated gear, and is available in several styles,so it can be installed exactly where needed. The standardmounting styles of switchgear are as follows:

UnderCover Style

When the UnderCover style is specified, the gear is pro-vided with a stainless-steel tank and submersible wiring.The mild-steel or, optionally, stainless-steel low-voltageenclosure is mounted on a customer-supplied pad at gradelevel. It is connected to the tank with cabling up to 45 feetin length.

Vault-Mounted Style

Two versions of this style are available: Wet-Vault-Mounted Style is intended for vaults that are subject toperiodic flooding and includes submersible wiring andelectrical components. Dry-Vault-Mounted Style isintended for vaults that are not subject to periodic flood-ing and does not include submersible wiring and electricalcomponents.

When the Wet-Vault-Mounted Style is specified, a stain-less-steel tank is furnished, suitable for mounting on thefloor or wall of a vault. When the Dry-Vault-Mounted Styleis specified, a mild-steel tank is furnished. The mild-steelor, optionally, stainless-steel low-voltage enclosure ismounted on the vault floor or wall, and is connected to thetank with cabling up to 45 feet in length.

Pad-Mounted Style

When the pad-mounted style is specified, a mild-steel or,optionally, stainless-steel enclosure and tank are pro-vided. Pad mounted enclosures meet the requirements ofANSI C57.12.28 (enclosure integrity). The top of the pad-mounted enclosure is hinged on both sides for convenientaccess to the operating and termination compartments. Aremovable panel provides access to the elbows and cablesand is secured by the overlapping padlockable top. A resil-ient closed-cell gasket on the enclosure bottom flangeprotects the finish from being scratched during installa-tion and isolates it from the alkalinity of a concrete foun-dation. Enclosures are protected from corrosion by S&C’sUltradur® finishing system.

In addition, Vista UDS has been certified as arc resis-tant per IEC 298 Appendix AA for fault currents up to12.5 kA symmetrical for 15 cycles (25 kA symmetricalfor units rated 25 kA short circuit). Arc resistance isstandard for the pad-mounted and UnderCover styles.For the vault-mounted styles, Catalog Number Suffix“-N” must be specified, in which case a flange will bewelded to the pressure relief device for connection ofuser-supplied piping to vent exhaust gases out of thevault area.

Application Notes

Fault Interrupter

S&C Vista Underground Distribution Switchgear featureseither arc-spinning contacts (15.5-kV, 12.5 kA symmetri-cal), vacuum fault interrupters for three-pole load switch-ing and fault interruption through 25 kA symmetrical, orsingle-pole load switching and fault interruption through12.5 kA symmetrical.

Complete ratings for the fault interrupter, as applied inVista switchgear, are shown in the table on page 3. In addi-tion to the load-dropping ratings shown, the fault inter-rupter is capable of interrupting transformer magnetizingcurrents associated with the applicable loads, as well asline-charging and cable-charging currents typical for dis-tribution systems of these voltage ratings. The duty-cyclefault-closing rating shown for the fault interrupter definesthe ability to close the interrupter the designated numberof times into the closed position or ground positionagainst a three-phase fault as follows:

•

Main Contacts

The fault interrupter shall have the ability to close thedesignated number of times into a three-phase faultequal to rated value and interrupt the resulting short-circuit current. The fault interrupter shall remainoperable and able to carry and interrupt its rated con-tinuous current.

•

Ground Contacts

The fault interrupter ground switch shall have the abil-ity to close the designated number of times against athree-phase fault equal to the rated value with theground switch remaining operable and able to carry itsrated fault-closing current.

A Note on Single-Pole Switching

In single-pole switching of ungrounded-primary three-phase transformers or banks (or single-phase transform-ers connected line-to-line), circuit connections or parame-ters may, in some cases, produce excessive overvoltages.In particular, for the following applications above 22 kV,single-pole switching by any means should be performedonly under the conditions stated in italics:

•

Switching unloaded or lightly loaded delta-connectedor ungrounded-primary wye-wye connected three-phase transformers or banks (or line-to-line connectedsingle-phase transformers), rated 150 kVA or less three-phase, or 50 kVA or less single-phase—or of any kVArating when combined with unloaded cables orlines—where maximum system operating voltageexceeds 22 kV.

Single-pole switching should be per-

formed only if each phase is carrying 5% load or

Conditions of Sale—Continued



681-31

Page 3 of 17June 1, 2004s

more, or if the transformer or bank is temporarily

grounded at the primary neutral during switching.

•

Switching loaded or unloaded ungrounded-primarywye-delta connected three-phase transformers orbanks—alone or combined with unloaded cables orlines—where maximum system operating voltageexceeds 22 kV.

Single-pole switching should be per-

formed only if each phase is carrying 5% load or more

and if the lighting-load phase is always switched

open first (or switched closed last); or if the trans-

former or bank is temporarily grounded at the pri-

mary neutral during switching.

Load-Interrupter Switch

S&C Vista Underground Distribution Switchgear featuresload-interrupter switches for three-pole live switching ofthree-phase circuits.

Complete ratings for the load-interrupter switch, asapplied in Vista Switchgear, are shown in the table below.In addition to the load-dropping ratings shown, the switchis capable of interrupting transformer magnetizing cur-rents associated with the applicable loads, as well as line-charging and cable-charging currents typical for distribu-tion systems of these voltage ratings. For applicationsinvolving load current with high harmonic content (suchas rectifier load currents), refer to the nearest S&C SalesOffice. The duty-cycle fault-closing rating shown for theswitch defines the ability to close the switch into theclosed or ground position the designated number of timesagainst a three-phase fault equal to the rated value, withthe switch remaining operable and able to carry and inter-rupt rated current.

EXCLUSIONS:

Three-phase units listed on pages 4through 6 do not include the switchgear style, optionalfeatures, or accessories listed in the tables on pages 7through 11.

How To Order

1. Obtain the catalog number of the desired unit from thetable on pages 4 through 6.

2. Add a suffix designation (to the catalog number above)to indicate the desired switchgear style from the tableon page 7.

3. For 12.5-kA-rated models with one or more fault inter-rupters, add a suffix designation (to the catalog num-ber) to indicate the desired number of three-pole andsingle-pole fault interrupters, selected from the tableon page 7. This step is not applicable to models rated25 kA short circuit.

4. Add suffix designations (to the catalog number above)to indicate the optional features desired, selected fromthe table on pages 8 through 10.

5. Obtain the catalog number of the accessories from thetable on page 11 and touch-up kit components from thetable on page 11.

For example, the catalog number of a Vista Under-ground Distribution Switchgear unit, UnderCover style,Model 422 with all single-pole fault interrupters, rated 12.5kA short circuit and 15.5 kV maximum at 60 hertz, andequipped with voltage indication with provisions for low-voltage phasing is 934222-UT0L2.

ApplicableStandard

Amperes, RMS

Frequency,Hertz

Fault Interrupter Load-Interrupter Switch

Short-Circuit, Sym.

Main Bus Contin-uous

Current7

Continuous, Load Dropping,

and Load Splitting (Parallel or Loop Switching)456

Fault- Closing,

Sym.

Fault-Interrupting,

Sym.

Continuous, Load Dropping,

and Load Splitting (Parallel or Loop Switching)456

Fault- Closing,

Sym.

Momentary, Sym

.

1 Sec., Sym.

IEC 50 or 60200 or 630 12 500d

12 500 200 or 630 12 500d

12 500 12 500 12 500 600

630 25 000h

25 000 630 25 000h

25 000 25 000 25 000 600

ANSI 50 or 60200 or 600 12 500d

12 500 200 or 600 12 500d

12 500 12 500 12 500 600

600 25 000h

25 000 600 25 000h

25 000 25 000 25 000 600

Standard Three-Phase Ratings123

1

Refer to the individual indicated in S&C Information Sheet 101,“Contacts in Inside Sales and Divisions—Domestic,” for other possibleratings.2

IEC ratings have been assigned in accordance with the applicableportions of IEC 265-1 for a Class A switch.3

ANSI ratings have been assigned in accordance with the applicableportions of ANSI C37.71, C37.72, and C37.73.4

Fault interrupters and load-interrupter switches are rated 600amperes (630 amperes IEC) continuous, load dropping, and loop split-ting when furnished with 600-ampere bushings (standard for load-inter-rupter switches and 25-kA fault interrupters, optional for 12.5-kA faultinterrupters). The rating is limited to 200 amperes if 200-ampere bush-ing wells are used (standard for 12.5-kA fault interrupters, optional for

12.5-kA load-interrupter switches). Models rated 25-kA are only avail-able with 600-ampere bushings.5

Fault interrupters and load-interrupter switches can switch themagnetizing current of transformers associated with the load-droppingrating. In addition, unloaded cable switching ratings are as follows: 10amperes at 15.5 kV and 20 amperes at 29 kV and 38 kV.6

900 ampere is also available.7

1200 ampere is also available.d

32,500-ampere peak ten-time duty-cycle rating

.

h

65,000-ampere peak three-time duty-cycle rating. Ten-time duty-cycle fault-closing rating is 16,000 amperes symmetrical, 41,600amperes peak.


681-31


Page 4 of 17June 1, 2004 s

S&C Vista

®



THREE-PHASE UNITS

Model1

One-LineDiagram2

Ratings3

CatalogNumber4

Net Wt., Lbs.5

Page Referencefor Dimensional

InformationkV Short-Circuit

Amperes,RMS, Sym.Max BIL

201

15.5 9512 500

25 000

932012R1

852012d

550

550

12 through 15

29 12512 500

25 000

932013

852013d

550

800

38 15012 500

25 000

932014d

852014d

800

800

210

15.5 9512 500

25 000

932102R1

852102d

550

550

29 12512 500

25 000

932103

852103d

550

800

38 15012 500

25 000

932104d

852104d

800

800

211

15.5 9512 500

25 000

932112R1

852112d

550

550

29 12512 500

25 000

932113

852113d

550

800

38 15012 500

25 000

932114d

852114d

800

800

320

15.5 9512 500

25 000

933202R1

853202

825

825

29 12512 500

25 000

933203

853203

825

1075

38 15012 500

25 000

933204

853204

1075

1075

321

15.5 9512 500

25 000

933212R1

853212

825

825

29 12512 500

25 000

933213

853213

825

1075

38 15012 500

25 000

933214

853214

1075

1075

330

15.5 9512 500

25 000

933302R1

853302

825

825

29 12512 500

25 000

933303

853303

825

1075

38 15012 500

25 000

933304

853304

1075

1075

1 The model number defines the total number of ways, the number ofload-interrupter switch ways, and the number of fault-interrupter ways.For example, a Model 431 has “4” ways in total of which “3” are load-inter-rupter switch ways and “1” is a fault-interrupter way.

2 Refer to the nearest S&C Sales Office for other possible configura-tions.

3 Refer to “Standard Three-Phase Ratings” on page 3 for continuous,load-dropping, interrupting, and short-circuit ratings.

4 Vista UDS units with the R1 suffix use arc-spinning contacts for faultinterruption instead of vacuum interrupters where applicable.

5 Welded-steel tank including components and SF6 gas.

d These models have not been certified as arc resistant for unrestrictedaccess. Refer to the nearest S&C Sales Office.

TABLE CONTINUED v


SPECIFICATION BULLETIN 681-31Page 5 of 17June 1, 2004s

THREE-PHASE UNITS—Continued

Model1 One-LineDiagram2

Ratings3

CatalogNumber4

Net Wt., Lbs.5




413

15.5 9512 500

25 000

934132R1

854132

1100

1100

12 through 15

29 12512 500

25 000

934133

854133

1100

1350

38 15012 500

25 000

934134

854134

1350

1350

422

15.5 9512 500

25 000

934222R1

854222

1100

1100

29 12512 500

25 000

934223

854223

1100

1350

38 15012 500

25 000

934224

854224

1350

1350

431

15.5 9512 500

25 000

934312R1

854312

1100

1100

29 12512 500

25 000

934313

854313

1100

1350

38 15012 500

25 000

934314

854314

1350

1350

440

15.5 9512 500

25 000

934402R1

854402

1100

1100

29 12512 500

25 000

934403

854403

1100

1350

38 15012 500

25 000

934404

854404

1350

1350

514

15.5 9512 500

25 000

935142R1

855142

1375

1375

29 12512 500

25 000

935143

855143

1375

1625

38 15012 500

25 000

935144

855144

1625

1625


2 Refer to the nearest S&C Sales Office for other configurations.




TABLE CONTINUED v


681-31 SPECIFICATION BULLETINPage 6 of 17June 1, 2004 s

S&C Vista® Underground Distribution SwitchgearOutdoor Distribution

THREE-PHASE UNITS—Continued

Model1 One-LineDiagram2

Ratings3

CatalogNumber4

Net Wt., Lbs.5




523

15.5 9512 500

25 000

935232R1

8552321375

1375

12 through 15

29 12512 500

25 000

935233

8552331375

1625

38 15012 500

25 000

935234

8552341625

1625

624

15.5 9512 500

25 000

936242R1

8562421650

1650

29 12512 500

25 000

936243

8562431650

1900

38 15012 500

25 000

936244

8562441900

1900

633

15.5 9512 500

25 000

936332R1

8563321650

1650

29 12512 500

25 000

936333

8563331650

1900

38 15012 500

25 000

936334

8563341900

1900


2 Refer to the nearest S&C Sales Office for other configurations.






SWITCHGEAR STYLE (to accommodate the installation)

Item

Suffix tobe Added

to Switchgear Catalog Number

Applicable toModels

UnderCover Style. Includes stainless-steel tank and submersible wiring and control housings -U All models

Dry-Vault-Mounted Style. Includes mild-steel tank. Does not include submersible wiring and control housings -V3 All models

Wet-Vault-Mounted Style. Includes stainless-steel tank and submersible wiring and control housings -V4 All models

Pad-Mounted Style. Includes mild-steel tank and mild-steel or stainless-steel pad-mounted enclosure for mount-ing switchgear on a pad. Does not include submersible wiring and control housings

Two-way unit

Mild-steelouter enclosure

Olive green finish -P2 201, 210, 211

Light gray finish -P7 201, 210, 211

Stainless-steelouter enclosure

Olive green finish -P12 201, 210, 211

Light gray finish -P17 201, 210, 211

Three- orfour-way unit


Olive green finish -P4320, 321, 330, 413, 422, 431, 440

Light gray finish -P9320, 321, 330, 413, 422, 431, 440


Olive green finish -P14320, 321, 330, 413, 422, 431, 440

Light gray finish -P19320, 321, 330, 413, 422, 431, 440

Five- orsix-way unit


Olive green finish -P6 514, 523, 624, 633

Light gray finish -P11 514, 523, 624, 633


Olive green finish -P16 514, 523, 624, 633

Light gray finish -P21 514, 523, 624, 633

SINGLE-POLE OR THREE-POLE FAULT-INTERRUPTING—For 12.5-kA-rated models123

Item

Suffix tobe Added


Applicable to

Single-Pole Manual Fault Interrupters on all fault interrupting ways -T012.5-kA-rated models with1 or more fault interrupters

Three-Pole Manual Fault Interrupter on one fault interrupting way (single-pole manual fault interrupters on all other fault interrupting ways) -T1

12.5-kA-rated models with1 or more fault interrupters

Three-Pole Manual Fault Interrupter on two fault interrupting ways (single-pole manual fault interrupters on all other fault interrupting ways) -T2


Three-Pole Manual Fault Interrupter on three fault interrupting ways (single-pole manual fault interrupt-ers on all other fault interrupting ways) -T3


Three-Pole Manual Fault Interrupter on four fault interrupting ways (single-pole manual fault interrupt-ers on all other fault interrupting ways) -T4


Three-Pole Manual Fault Interrupter on five fault interrupting ways (single-pole manual fault interrupters on all other fault interrupting ways) -T5


Three-Pole Manual Fault Interrupter on six fault interrupting ways -T612.5-kA-rated models with6 fault interrupters

1 Not applicable to models rated 25 kA short circuit. All 25-kA-ratedmodels include three-pole fault interrupters only.

2 Refer to the nearest S&C Sales Office for other possible configura-tions.

3 For standard models, components are in the following order (fromleft to right) when facing the operating side of the gear: load switches,bus taps, three-pole fault interrupters, single-pole fault interrupters.




OPTIONAL FEATURES

Item

Suffix tobe Added

to Switchgear CatalogNumber

Applicable to Models

Stainless-Steel Tank (applicable only for units with suffixes “-V” or “-P2” through“-P21”) -S All models

Mounting Provisions for a Fault Indicator for Each Load-Interrupter Switch (applicable only for units with suffixes “-P2” through “-P21”)

NOTE: Accommodates three-phase indicator with single-phase sensors

Without viewing window inpad-mounted enclosure -F1 All models except 201

With viewing window inpad-mounted enclosure -F2d All models except 201

Potential Indication with Test Feature. Includes LCD display to indicate presence of voltage on each phase, and solar panel to supply power for testing of complete voltage-indication circuit and phasing circuit (if furnished). One potential indica-tor is provided for each bus-terminal, load-inter-rupter switch, and fault-interrupter way

Without provisions for low-voltage phasing -L1 All models

With provisions for low-voltagephasing -L2 All models

Spanish Labels -L51 All models

Portuguese Labels -L52 All models

International Crating1 -L71 All models

900-Ampere Load-Interrupter Switch23 on

Way 1 -K1

All models rated 25 kA with 1200-ampere main bus

Way 2 -K2

Way 3 -K3

Way 4 -K4

Way 5 -K5

Way 6 -K6

900-Ampere Fault-Interrupter23 on

Way 1 -Q1

Way 2 -Q2

Way 3 -Q3

Way 4 -Q4

Way 5 -Q5

Way 6 -Q6

1 Choosing this option signifies that wood products to be used in thepackaging of any items on International orders must either be hard woodor certified by the wood supplier as having “been heat treated (kiln dried)to a core temperature of 56° C for a minimum of 30 minutes.”

2 Cable terminations must be capable of carrying 900 amperes.

3 If piggybacked elbows are desired, contact your nearest S&C SalesOffice.

d When ordering optional feature “-F2” for use with a stainless-steelpad-mounted enclosure, specify suffix “-F12” instead of “-F2.”

TABLE CONTINUED v



OPTIONAL FEATURES—Continued

Item

Suffix tobe Added



600-Ampere Bushings Without Studs, at load-interrupter switch and bus terminals for12.5-kA-rated models, and at all terminals for 25-kA-rated models -M1 All 12.5-kA-rated models except

Model 201

600-Ampere Bushings in Lieu of 200-Ampere Bushing Wells, at fault-interrupter and bus terminals

Without studs -M2d All 12.5-kA-rated models except Models 210, 320, 330, and 440With studs -M3d

200-Ampere Bushing Wells in lieu of 600-Ampere Bushings, at load-interrupter switch and bus terminals1

-M4d All 12.5-kA-rated models except Model 201

Arc Resistance for Vault-Mounted Style Vista (arc resistance is standard for pad-mounted and UnderCover styles), per IEC 298 Appendix AA, for arcs occurring internal to the Vista tank(15 cycles, 12 kA symmetrical)

-N All models with option suffix “-V3” or “-V4”

Two-Hole Ground Pad, one per way, located below bushings or bushing wells (in lieu of standard one ground pad per tank) -O All models

1200-Ampere Rating for Main Bus

With Dual 600-Ampere Incoming Ways with Interrupters -W1

320, 321, 330

413, 422, 431, 440

514, 523

624, 633

With Single 900-Ampere T-Bodies2 -W2

201, 210, 211

320, 321, 330

413, 422, 431, 440

514, 523

624, 633

Air Bushings � Requires the system six design

Remote Low-Pressure Alarm3— includes internal contact for remote low-pressure indication, with wiring to outside of tank

With wires routed on tank for futurecustomer connections

-R11 For Pad-Mounted and Dry-Vault-Mounted installation styles

-R12 For UnderCover and Wet-Vault-Mounted installation styles

With wires terminated in an enclosure that is furnished with a terminal block for customer connections

-R2 Only available for Pad-Mounted and Dry-Vault-Mounted Style units

1 Except for the Model 201, all bus terminals are normally equippedwith 600- or 900-ampere bushings.

2 Requires 900-ampere switches or interrupters.

3 This option must be specified if future remote supervisory features,including remote low-pressure indication, are planned.

d Not applicable to models rated 25 kA short circuit. 25-kA models arealways furnished with 600- or 900-ampere bushings.

� Refer to your nearest S&C Sales Office for more information.

TABLE CONTINUED v




OPTIONAL FEATURES—Continued

Item

Suffix tobe Added



External Trip Provisions, allows three-pole trip-ping of single-pole or three-pole fault interrupters via a trip signal from a remote location or an external relay. Requires a 110/120 Vac 50/60 Hz control power source12

In addition to standard overcurrent control for all fault interrupters



In lieu of standard overcurrent control and current transformers for all fault interrupters



External Trip Provisions. Allows three-pole tripping of single-pole or three-pole fault interrupters via a trip signal from a remote location or an external relay. Requires a 220/240 Vac 50/60 Hz control power source12

In addition to standard overcurrent control for all fault interrupters



In lieu of standard overcurrent control and current transformers for all fault interrupters



Key Interlock on Load-Interrupter Switch or Three-Pole34 Fault Interrupter. Include one of each ofthe following options to specify a key interlock (one per way maximum), on

Way 1 -X1Any unit for which Way 1 is a load-interrupter switch or three-pole fault interrupter






Copper Bus -Z5 All models

1 Refer to the nearest S&C Sales Office if compatibility with controlpower other than 120 Vac is required.

2 The user-supplied trip-initiating signal must be a momentary contact.Refer to the nearest S&C Sales Office if an application requires the use ofa latching contact.

3 Where key interlocks are to be applied on fault interrupters, specifyoptions “-T1” through “-T6,” as applicable.

4 Motor operators can not be retrofitted onto ways with key interlocks.



ACCESSORIES

Item Catalog Number

Shotgun Clamp Sticks for use with separable connectors6�-5¹⁄₂� length 9933-150

8�-5¹⁄₂� length 9933-151

Storage Bag for Shotgun Clamp Stick, heavy canvas6�-6� length 9933-152

8�-6� length 9933-153

Overcurrent-Control Adapter Cable1

For connecting control to user-furnished personal computer in the field

For personal computers having 25-pin serial communication port TA-2366


For connecting control (removed from its enclosure) to user-furnished personalcomputer in the shop



Portable Motor Operator for operation of load-interrupter switches or single- or three-pole fault interrupters from a remote location. Includes carrying case, 50-foot cable with remote controls, and power supplied by

User-furnished 24-volt battery andbattery charger 38320R1

S&C-furnished 24-volt battery and battery charger 38322R1

S&C-furnished AC input power supply 38323R1

Pentahead Socket, for ¹⁄₂-inch drive 9931-074

1 Required for programming overcurrent control.

TOUCH-UP KIT COMPONENTS—Aerosol Coatings in 9-ounce cans

Item Catalog Number

S&C Light Gray Outdoor Finish 9999-080

S&C Olive Green (Munsell 7GY3.29/1.5) Outdoor Finish 9999-058

S&C Red-Oxide Primer 9999-061




TERMINATION VIEW

ANCHOR BOLT PLAN

� ⁵⁄₈ (16)8 PLACES

APPROXIMATE PROJECTED CABLE CENTER LINES

15.5 kV, 12.5 kA SymmetricalModel 422 shownDimensions in inches (mm)

3⁷⁄₈ (99)

23¹³⁄₁₆

(605)15³⁄₁₆

(386)

W

5.00 (127) TYP.

34¹³⁄₁₆

(884)

7⁵⁄₈ (194)

4³⁄₈ (111)

3⁷⁄₈ (99)

61¹⁄₁₆

(1551)

5.00 (127)TYP.

3.00 (76)9.00 (229)

D

33⁷⁄₁₆

(849)

2.00 (51)



Model

Ratings

D� WkV, Max Short-Circuit kA,

RMS, Sym.

201, 210, 211

15.5f 12.5

NA 33¹⁄₄ (845)

320, 321, 330 NA 48¹⁄₄ (1226)

413, 422, 431, 440 29¹⁄₈ (790) 65 ⁷⁄₁₆ (1662)

514, 523 44¹⁄₈ (1121) 80 ⁷⁄₈ (2054)

624, 633 44¹⁄₈ (1121) 95 ⁷⁄₈ (2435)

� Four-, five-, and six-way units include an extra 2⁵⁄₈-inch (67-mm) gapbetween ways two and three (four- and five-way units) or between waysthree and four (six-way units).

f See pages 14 and 15 for 15.5 kV, 25 kA symmetrical models.

4¹⁄₈ (105)32³⁄₁₆

(817)

SIDE VIEW




CCB

B C

E

Model 422 shownDimensions in inches (mm)

33(838)

28³⁄₄

(730)

TERMINATION VIEW

W

26(660)

ANCHOR BOLT PLAN

1¹⁄₂ (38) TYP.

3 (76) TYP.

35 (889)

A


1⁵⁄₁₆ (33) TYP.

D

1³⁄₄ (44) TYP.

W

EIGHT ⁵⁄₈ (16) DIA.



Model

Ratings

A B C D� E� WkV, Max Short-Circuit kA,

RMS, Sym.

201, 210, 211

15.5f 25 9 (229) 26⁷⁄₈ (683) 5 (127) NA NA 56 (1422)

29 12.5 8 (203) 4¹⁄₈ (105) 5 (127) NA NA 33¹⁄₄ (845)

2938

2512.5 or 25 7 (178) 5 (127) 5³⁄₄ (146) NA NA 56 (1422)

320, 321, 330

15.5f 25 9 (229) 11⁵⁄₈ (295) 5 (127) NA NA 56 (1422)

29 12.5 8 (203) 4¹⁄₈ (105) 5 (127) NA NA 48¹⁄₄ (1226)

2938

2512.5 or 25 7 (178) 5 (127) 5³⁄₄ (146) NA NA 56 (1422)

413, 422, 431,440

15.5f 25 9 (229) 4¹⁄₈ (105) 5 (127) 29¹⁄₈ (740) 7⁵⁄₈ (194) 65⁷⁄₈ (1673)

29 12.5 8 (203) 4¹⁄₈ (105) 5 (127) 29¹⁄₈ (740) 7⁵⁄₈ (194) 65⁷⁄₈ (1673)

2938

2512.5 or 25 7 (178) 5 (127) 5³⁄₄ (146) NA NA 73¹⁄₄ (1861)

514, 523

15.5f 25 9 (229) 4¹⁄₈ (105) 5 (127) 44¹⁄₈ (1121) 7⁵⁄₈ (194) 80⁷⁄₈ (2054)

29 12.5 8 (203) 4¹⁄₈ (105) 5 (127) 44¹⁄₈ (1121) 7⁵⁄₈ (194) 80⁷⁄₈ (2054)

2938

2512.5 or 25 7 (178) 5 (127) 5³⁄₄ (146) NA NA 90¹⁄₂ (2299)

624, 633

15.5f 25 9 (229) 4¹⁄₈ (105) 5 (127) 44¹⁄₈ (1121) 7⁵⁄₈ (194) 95⁷⁄₈ (2435)

29 12.5 8 (203) 4¹⁄₈ (105) 5 (127) 44¹⁄₈ (1121) 7⁵⁄₈ (194) 95⁷⁄₈ (2435)

2938

2512.5 or 25 7 (178) 5 (127) 5³⁄₄ (146) NA NA 107³⁄₄ (2737)

35(889)

SIDE VIEW

5¹⁄₄(133)

� Four-, five-, and six-way units (15.5 kV and 29 kV only) include anextra 2⁵⁄₈-inch (67-mm) gap between ways two and three (four- and five-way units) or between ways three and four (six-way units).

f See page 12 and 13 for 15.5 kV, 12.5 kA symmetrical models.




2³⁄₄ (70) TYP.

Model 422 shown with pad-mounted enclosureDimensions in inches (mm)

W

D

E

ANCHOR BOLT PLAN


ANCHOR BOLT BY USER ANCHOR BRACKET BY S&C

4 (102) TYP.7¹⁄₂ (191) TYP.

L

M

J H

K

5

37(940)

2³⁄₄ (70) TYP.

C

B

TERMINATION VIEW

W

FG

A



Model

Ratings

A B C D E F� G� H J K L M N P WkV,

Max

Short-Circuit kA,RMS, Sym.

201, 210,211

15.512.5 61 (1549) 15³⁄₁₆ (386) 27 (686) 61 (1549) 12 (305) NA NA 5 (127) 7 (178) 32¹³⁄₁₆ (883) 3¹⁄₂ (89) 32³⁄₁₆ (817) 61 (1549) 24⁷⁄₈ (632) 39 (991)

25 64 (1626) 28 (771) 37 (940) 61 (1549) 12 (305) NA NA 5 (127) 38 ³⁄₈ (975) 56 (1422) 12¹⁵⁄₁₆ (329) 35 (889) 65 (1651) 23¹⁄₂ (597) 79 (2007)

29 12.5 64 (1626) 28 (771) 37 (940) 65 (1651) 17 (432) NA NA 5 (127) 7 (178) 33¹⁄₄ (845) 4⁵⁄₁₆ (110) 35 (889) 65 (1651) 23¹⁄₂ (597) 39 (991)

2938

2512.5 or 25 64 (1626) 28 (771) 37 (940) 65 (1651) 18 (457) NA NA 5³⁄₄ (146) 7⁵⁄₈ (194) 56 (1422) 12¹⁵⁄₁₆ (329) 35 (889) 65 (1651) 23¹⁄₂ (597) 79 (2007)

320, 321,330

15.512.5 61 (1549) 15³⁄₁₆ (386) 27 (686) 61 (1549) 12 (305) NA NA 5 (127) 16 (406) 47¹³⁄₁₆ (1214) 3¹⁄₂ (89) 32³⁄₁₆ (817) 61 (1549) 24⁷⁄₈ (632) 72 (1829)

25 64 (1626) 28 (771) 37 (940) 61 (1549) 12 (305) NA NA 5 (127) 23 ³⁄₈ (594) 56 (1422) 12¹⁵⁄₁₆ (329) 35 (889) 65 (1651) 24⁷⁄₈ (632) 79 (2007)

29 12.5 64 (1626) 28 (771) 37 (940) 65 (1651) 17 (432) NA NA 5 (127) 16 (406) 48¹⁄₄ (1226) 13⁵⁄₁₆ (339) 35 (889) 65 (1651) 23¹⁄₂ (597) 72 (1829)

2938

2512.5 or 25 64 (1626) 28 (771) 37 (940) 65 (1651) 18 (457) NA NA 5³⁄₄ (146) 16¹⁄₂ (419) 56 (1422) 12¹⁵⁄₁₆ (329) 35 (889) 65 (1651) 23¹⁄₂ (597) 79 (2007)

413, 422,431, 440

15.512.5 61 (1549) 15³⁄₁₆ (386) 27 (686) 61 (1549) 12 (305) 7⁵⁄₈ (194) 32³⁄₁₆ (818) 5 (127) 7³⁄₁₆ (183) 65⁷⁄₁₆ (1662) 3¹⁄₂ (89) 32³⁄₁₆ (817) 61 (1549) 24⁷⁄₈ (632) 72 (1829)

25 64 (1626) 28 (771) 37 (940) 61 (1549) 12 (305) 7⁵⁄₈ (194) 32³⁄₁₆ (818) 5 (127) 7³⁄₁₆ (183) 65⁷⁄₈ (1673) 4¹⁄₂ (114) 35 (889) 65 (1651) 19¹⁄₂ (495) 72 (1829)

29 12.5 64 (1626) 28 (771) 37 (940) 65 (1651) 17 (432) 7⁵⁄₈ (194) 32³⁄₁₆ (818) 5 (127) 7³⁄₁₆ (183) 65⁷⁄₈ (1673) 4¹⁄₂ (114) 35 (889) 65 (1651) 23¹⁄₂ (597) 72 (1829)

2938

2512.5 or 25 64 (1626) 28 (771) 37 (940) 65 (1651) 18 (457) NA NA 5³⁄₄ (146) 7⁷⁄₈ (200) 73¹⁄₄ (1861) 4⁵⁄₁₆ (110) 35 (889) 65 (1651) 23¹⁄₂ (597) 79 (2007)

514, 523

15.512.5 61 (1549) 15³⁄₁₆ (386) 27 (686) 61 (1549) 12 (305) 7⁵⁄₈ (194) 54¹¹⁄₁₆ (1389) 5 (127) 14¹¹⁄₁₆ (373) 80⁷⁄₁₆ (2043) 3¹⁄₂ (89) 32³⁄₁₆ (817) 61 (1549) 24⁷⁄₈ (632) 102 (2591)

25 64 (1626) 28 (771) 37 (940) 61 (1549) 12 (305) 7⁵⁄₈ (194) 54¹¹⁄₁₆ (1389) 5 (127) 14¹¹⁄₁₆ (373) 80⁷⁄₈ (2054) 12 (305) 35 (889) 61 (1549) 19¹⁄₂ (495) 102 (2591)

29 12.5 64 (1626) 28 (771) 37 (940) 65 (1651) 17 (432) 7⁵⁄₈ (194) 54¹¹⁄₁₆ (1389) 5 (127) 14¹¹⁄₁₆ (373) 80⁷⁄₈ (2054) 12 (305) 35 (889) 65 (1651) 23¹⁄₂ (597) 102 (2591)

2938

2512.5 or 25 64 (1626) 28 (771) 37 (940) 65 (1651) 18 (457) NA NA 5³⁄₄ (146) 16¹⁄₄ (413) 90¹⁄₂ (2299) 12¹¹⁄₁₆ (323) 35 (889) 65 (1651) 23¹⁄₂ (597) 113 (2870)

624, 633

15.512.5 61 (1549) 15³⁄₁₆ (386) 27 (686) 61 (1549) 12 (305) 7⁵⁄₈ (194) 47³⁄₁₆ (1199) 5 (127) 7³⁄₁₆ (183) 95⁷⁄₁₆ (2424) 3¹⁄₂ (89) 32³⁄₁₆ (817) 61 (1549) 24⁷⁄₈ (632) 102 (2591)

25 64 (1626) 28 (771) 37 (940) 61 (1549) 12 (305) 7⁵⁄₈ (194) 47³⁄₁₆ (1199) 5 (127) 7³⁄₁₆ (183) 95⁷⁄₈ (2435) 4¹⁄₂ (114) 35 (889) 61 (1549) 19¹⁄₂ (495) 102 (2591

29 12.5 64 (1626) 28 (771) 37 (940) 65 (1651) 17 (432) 7⁵⁄₈ (194) 47³⁄₁₆ (1199) 5 (127) 7³⁄₁₆ (183) 95⁷⁄₈ (2435) 4¹⁄₂ (114) 35 (889) 65 (1651) 23¹⁄₂ (597) 102 (2591)

2938

2512.5 or 25 64 (1626) 28 (771) 37 (940) 65 (1651) 18 (457) NA NA 5³⁄₄ (146) 10¹⁄₄ (260) 107³⁄₄ (2737) 4¹⁄₁₆ (104) 35 (889) 65 (1651) 23¹⁄₂ (597) 113 (2870)

SIDE VIEW

N

80° COVER OPENING

5 (127)

P

� Four-, five-, and six-way units (15.5 kV and 29 kV only) include an extra 2⁵⁄₈-inch (67-mm) gapbetween ways two and three (four- and five-way units) or between ways three and four (six-way units).

Documents

681-31.pdf