Download - ODS Switch

ODS Control andSelector Switches

2

ODS Control and Selector Switches

IntroductionThis publication provides design,application and orderinginformation for the ALSTOM rangeof ODS control, auxiliary andinstrument switches.

The ODS range has beenmanufactured for over twenty fiveyears and is well proven in a widevariety of applications andoperating conditions.

ApprovalsODS switches are approved by –

CEGB to ES150-18 Duty II& Life Classes I, II & IIILloyds Register of Shipping

Ordering ProcedureContact arrangements for moststandard types are detailed onpages 9 to 13.

Please specify requirements byfilling in the whole of the switchordering sheet provided at the backof this publication. Further copies ofthis form are available on requestalthough you may prefer to produceyour own duplicate copies.

3

Features Benefits

30A contact rating Negates the use of ancillarycontactors for many heavy currentswitching applications

Up to 60 contacts on one switch Critical switching operations can beachieved using one switchpreventing possible errors whenusing more switches

Up to eight switch positions Can be used for duties having manyfunctions

Choice of contact duties Switches suitable for ac, dc andsmall signal applications

Choice of stayput or spring return Switches available for both selectorand control applications from thesame range

Flame retardant material with arc Meets all required safety standardsquenching properties

Silver cadmium oxide contacts for High reliability and durabilitypositive electrical connection

Choice of 13 handles including Suitable for use on all styles ofkey operated switchboard

Large handles provide positiveswitch operation when multiplecontacts are used

Key operated switches provideadded security

Barrel locks or padlocking facility Prevents unauthorised useavailable

Auxiliary switch available with Provides additional contacts whenuniversal driver lever used with circuit breakers

Last position indicator and lost Last position indicator displaysmotion (slip) contacts available for status of breakercircuit breaker control applications Lost motion contacts provide an

electrical means of displaying statusof circuit breaker and ensuresbreaker cannot be opened or closedtwice in succession

Engraved escutcheon Provides easily readable display ofswitch duty

4

ConstructionThe ODS switch has been designedon the ‘pack’ principle, eachindividual pack containingelectrically independent doublebreak contacts and a mechanicaloperating cam, driven by a commonshaft. Up to 30 packs can beaccommodated on a single switchgiving a maximum of 60 electricalways. More contacts can beaccommodated, as required, byganging two or more switchestogether.

The individual switch packs whichform the basis of the switch aremoulded in a self extinguishingplastic compound with inherent arcquenching and high insulatingproperties. The contacts andassociated moving parts arecompletely enclosed in the mouldinggiving a high degree of dustprotection.

The mechanism housing is mouldedin fire resistant material andcontains the mechanical partsnecessary to provide the stay-put,spring return or lost motion switchactions.

ContactsEach pole provides a doubleelectrical break by means of twofixed contacts and one movingbridge contact. Contacts havedomed silver cadmium oxide buttonson the fixed parts and flat silvercadmium oxide buttons on themoving contact. The fixed copperterminal faces are tin plated toensure a good electrical connection.See Figure 1.

The contact bridge system comprisesa moving contact attached to a camfollower. On operation of the switchthe brass roller, part of the camfollower, follows the contours of theoperating cam causing the contactsto open and close as required.Contact pressure is maintained bytwo springs acting on the contactbridge.

The design of the ODS switch issuch that ‘make before break’ or‘break before make’ contactarrangements can be provideddependent upon the switchapplication.

Four classes of contact duty areavailable; Extra Light (gold plated),Light, Medium and Heavy duty.To determine which class of contactduty you require refer to contactdata on page 15.

EscutcheonsIf required an escutcheon formounting on the front of the panelcan be provided. The escutcheoncan be supplied blank or withcustomised engraving which mustbe stated at the time of order.

A standard gravoply escutcheon isprovided with a white backgroundand black letters when engraved.Alternative colours are available onrequest – please refer to factory.

Figure 1: ODS switch pack

5

HandlesSmall pointer type (MS) handles arenormally fitted as standard to bothcontrol and instrument switches.Alternative handles are available asillustrated in Figure 2.

Figure 2: ODS switch handles

CL ML EL

CS MS ES

AS BS DS

AL BL DL

6

Locking FacilitiesThe following locking facilities canbe provided on control switches.

Figure 5: Key operated ODS switch

Figure 4: ODS switch with barrel lock

Figure 3: Padlockable ODS switch

Padlocking

Padlocking arrangements can beprovided with either a ‘pull to lock’or a self locking ‘push to release’facility. See Figure 3. Locking canbe achieved in any switch positionor combinations thereof, byselection.

The maximum diameter padlockhasp suitable for use with the switchis 4.7mm.

Barrel locking

A barrel lock can be incorporated inthe centre of the operating handle,lockable, by selection, in any of theswitch positions. It can be suppliedwith either the ‘key free when switchlocked or unlocked’ or ‘key free onlywhen switch locked’. See Figure 4.

Key operated removablehandle

Here the key acts as the handle tooperate the switch. The key can bechosen to be removable in all orselected positions. See Figure 5.

7

Control and InstrumentSwitchesThe following types of controlinstrument switch are available inthe ODS range:

Maintained contact

The maintained contact or stay-putswitch is normally supplied for allinstrument and selector switchapplications. It is available with a45 or 90 degree throw betweenpositions.

Spring return

Most control switches aremanufactured with spring return tothe original neutral position.They are used for circuit breakercontrol and other types ofelectrically controlled apparatuswhere momentary contact isrequired. The ODS spring returnswitch is designed with a 60°operating angle in either directionfrom the neutral position.A maximum of 10 contacts can bemade in either non-neutral position.

Spring return and last positionindicator switch

A mechanical last position indicatorcan be fitted to a spring returnswitch and indicates the last positionto which the switch was operated.See Figure 6.

Figure 6: ODS switch withlast position indicator

Figure 7: ODS auxiliary switch withuniversal drive lever

Spring return and lost motionswitch

This type of switch is divided intotwo parts. The front portion of theswitch contains contacts requiringspring return action and the rearportion accommodating contacts forwhich the lost motion (slip contacts)facility is required.

Using this facility, the relevantcontacts are made in one of the non-neutral positions and remain madein that position until the switch isoperated to the other non-neutralposition. A maximum of 3 contactscan be made in any one non-neutralposition.

Stayput and Spring returnswitch

This switch can have up to threestay-put positions having a 90degree operating angle, with up totwo spring return positions having a45 degree operating angle.Naturally, spring return will only beavailable at the extreme positions towhich the switch will operate, hencethe maximum of two.

Sequence device

This device, used with a springreturn mechanism, prevents twoconsecutive movements in theclockwise position from neutral.

Auxiliary switches

The ODS auxiliary switch isnormally operated by the action ofthe circuit breaker and providesauxiliary contacts for control andindication.A universal drive lever is availablefor use with the ODS auxiliaryswitch. This lever consists of twoside members of aluminium alloyand two clamping plates.See Figure 7.

8

45°

4 Holes Ø 5.5C’sk @ 90° to Ø10.0on 70.0 PCD.

Panel hole for optional lastposition indicator.Ø6.0 C’sk @ 90° incl to Ø8.0.

Escutcheon mountingholes to suit fixing.(Escutcheon holes Ø4.2)

Escutcheon outline

20.6 20.6

70.0

43.0

83.0

35.0

35.0

35.0

Rear view

66.5

50.8

25.4

2 off tapped bushes forM5 x 0.8 thread fixing screws

14.3

A

M4 terminals15.9

3.0 to 6.4

Mounting Panel

19

Datum scribe(up for mounting)

Handle locking groove

Side view

Auxiliary Switch

Dimension A= (No. packs x 12.7 + 14.3mm)

41.3

8

3.0 to 6.4

Mounting Panel

25 AS 12AL 29

AS 51AL 89

69.8

3.0 to 6.4

Mounting Panel

8? 45 extended

37 retracted

Part detailof padlocktype handle

Stayput or spring return non lock switch

Stayput or spring return barrel lock or padlockable switch

Mounting diagram

Outline & MountingDetailsThe detail given below indicates thespace required behind panel tomount switches. Exact details ofswitches will be provided uponacknowledgement of order.

Panel mounting

ODS control instrument switches aremounted by four screws to panels ofa maximum thickness of 6.35mm(0.25) inches. If switches exceed200mm(8 inches) in length, a supportingbracket is advisable. Panel drillingdetails for most switches are asoutlined in Figure 8. Exact detail forthe switch you order will beprovided upon acknowledgement.

Figure 8: Outline and mounting details

All dimensions in mm

If LOST MOTION is required add 54mm to length.If sequence device is required, add 25.4mm to length.For spring return switches of six packs and over, anextra mechanism is required; add 25.4mm to length.

9

Stayput(45° or 90° Operation)

Spring Return(60° Operation)

AAB

C

DE

H

G

F

AAJM

Positions(viewed from front of switch)

Standard SwitchingApplicationsThe following pages detail standardswitching applications.

Contacts are shown in packarrangements, each pack havingtwo contacts.

2 Position ON/OFF

Stayput 45 degree

2 Position changeover

Stayput 45 degree

3 Position changeover withOFF/NEUTRALStayput 45 degree

Stayput 90 degree Stayput 90 degree Stayput 90 degree

Spring return 60 degree Spring return 60 degree Spring return 60 degree

Stayput 90 degree from 45 degree Stayput 90 degree from 45 degree

Positions Pack 1A B A BA

B

Positions Pack 1A B A BA

B

Positions Pack 1H B BA

BHA H A

Positions Pack 1G C CA

CG

A G APositions Pack 1

A C A CA

C

Positions Pack 1A J A JA

J

Positions Pack 1A J A JA

J

Positions Pack 1M J JA

JM

A M A

Positions Pack 1H B H B

H B

Positions Pack 1H B H B

H B

Positions Pack 1A C A CA

C

10

3 Position 3 way no OFF/NEUTRAL

Stayput 45 degree

4 Position 3 way with OFF/NEUTRAL

Stayput 45 degree

Stayput 90 degree Stayput 90 degree

Spring return 60 degree


Stayput 45 degree

Positions Pack 1

Pack 2M J M J

M JA M JA

A A

No contact

AJM

Positions Pack 1

Pack 2G C G C

G CA G CA

A

CGA A

No contact

Positions Pack 1

Pack 2H B H B

H BA H BA

A A

No contact

A BH

A

CG

E

Positions Pack 1

Pack 2

G CA E G CA E

G CA E G CA E

No contact

Positions Pack 1

Pack 2

H BA C H BA C

H BA C H BA C

No contact

ABH

C


Stayput 45 degree

Stayput 90 degree

Positions Pack 1

Pack 2

G AH B C G AH B C

G AH B C G AH B C

ABH

CG

A

CG

E

Positions Pack 1

Pack 2

G CA E G CA E

G CA E G CA E

Positions Pack 1

Pack 2

H BA C H BA C

H BA C H BA C

ABH

C

11


Stayput 45 degree


Stayput 45 degree


Stayput 45 degree


Stayput 45 degree


Stayput 45 degree

BAHGPositions Pack 1

H BA CC G

BAHGPack 2

H BA CC G

BAHGPack 3

H BA CC G

No contact

ABH

CG

AHGFPositions Pack 1

H BA CB G

AHGFPack 2

H BA CB G

AHGFPack 3

H BA CB G

C

C

C

F

F

F

No contact

ABH

CG

F

AHGFPositions Pack 1

H BA CB G

AHGFPack 2

H BA CB G

AHGFPack 3

H BA CB G

C

C

C

F

F

F

ABH

CG

F

HGFEPositions Pack 1

H BA CA G

HGFEPack 2

H BA CA G

HGFEPack 3

H BA CA G

B

B

B

F

F

F

C

C

C

E

E

E

HGFEPack 4

H BA CA GB FC E

No contact

No contact

ABH

CG

EF


H BA CA G

HGFEPack 2

H BA CA G

HGFEPack 3

H BA CA G

B

B

B

F

F

F

C

C

C

E

E

E

HGFEPack 4

H BA CA GB FC E

No contact

ABH

CG

EF

12


Stayput 45 degree


Stayput 45 degree

3 Position 4 way with single and cumulative

Stayput 45 degree

Stayput 90 degree


A CB DHGFE

A CB DHGFE

A CB DHGFE


ABH

CG

A

HGFEPack 2

A

HGFEPack 3

A

B

B

B

C

C

C

HGFEPack 4

A CB DA HB GC F

EF

D

D

D

D E

D

No contact

Positions Pack 1

Pack 2H B H B

H BA H BA

ABH

A A

Positions Pack 1

Pack 2G C G C

G CA G CA

A

CGA A

Positions Pack 1

Pack 2M J M J

M JA M JA

A

JM

A A

A CB DHGFE

A CB DHGFE

A CB DHGFE


A

HGFEPack 2

A

HGFEPack 3

A

B

B

B

C

C

C

HGFEPack 4

A CB DA HB GC F

D

D

D

D E

ABH

CG

EF D

13

2 Position 6 way changeover with make-before-break contacts

Stayput 90 degree from 45 degree

3 Position changeover with OFF/NEUTRAL and lost motion contacts


Positions Pack 1

Pack 2H B H B

H B H B

Pack 3H B H B

BH

Positions Pack 1

Pack 2M J M J

M JA M JA

A

JM

A A

Lost motion contacts

14

Technical Data

Maximum operating voltage 660V ac and dc.

Isolation 2kV rms 50/60Hz for 1 minuteacross open contacts.

Test procedure Contacts should be tested at orabove their minimum capacity.Testing at lower values may produceerroneous results.

Mechanical ratings*IEC 60337-1 (1970). 3 million switching cycles.

Up to 2 million complete rotations ofswitch.

* Contact packs only.When spring return fitted,100,000 switching cycles.When stayput fitted, 500,000switching cycles.

Contact materials

Extra light duty Gold plated silverLight duty SilverMedium/heavy duty Silver cadmium oxide

Make and carry ac

Extra light 20A415VLight 30A415VMedium 35A415V

Breaking ac

Up to 500,000 operations at 0.3 pf lag.

Extra light 0.2A 415VLight 20A 415VMedium 30A 415V

IEC 60337-1 (1970) Category AC11 Fault requirements

Make and carry dc

Extra light 20A 415VLight 30A 415VMedium/heavy 35A 415V

Breaking dc All ratings in tables 1, 2 and 3 arefor 25,000 operations.Ratings in table 4 are for 5,000operations (except where stated).

IEC 60337-1 (1970) Category DC11 Fault requirements.

Minimum capacity ac and dc

Extra light <1mA 1VLight 350mA 12VMedium/heavy 1A 20V

15

Number of Breaking capacity – amp dc

Contact duty Voltage contacts in Resistive Inductive time constants(Note 1) series 10ms 20ms 40ms

12 1 2 2 2 2Extra light 30 1 0.8 0.8 0.8 0.8Table 1 125 1 0.4 0.4 0.4 0.4

50 1 20 20 15 - - -2 - - - - - - 20 - - -

Light duty1 2 1.5 1 - - -Table 2

125 2 20 8 6 - - -3 - - - 20 20 - - -

1 20 20 15 650 2 - - - - - - 20 14

3 - - - - - - - - - 20

Medium duty 1 3 2.5 1.5 1Table 3 125 2 20 15 10 5

3 - - - 20 20 10

1 1 0.5 0.3 - - -250 2 5 2 1 0.5

3 20 10 4 1

50 1 30 30 30 30

1 20 10 6 4100 2 30 30 30 25

3 - - - - - - - - - 30

Heavy duty 1 20 10 5 3Table 4 125 2 30 30 30 20

3 - - - - - - - - - 30

1 5 2 1 0.5†250 2 20 20 12 8

3 - - - - - - 20 20

Notes 1. Extra light, light and medium duty are for ac and dc use. †25,000 operations this ratingHeavy duty is for dc use only.

16

Volta

ge/C

urre

nt c

urve

s fo

r ALS

TOM

Ext

ra L

ight

Dut

y, L

ight

Dut

y an

d M

ediu

m D

uty

Con

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s

0

0.2

0.4

0.6

0.81

1.2

1.4

1.6

1.82

2.2

2.4

2.6

010

2030

4050

6070

8090

100

110

120

130

140

150

160

170

180

190

200

Volta

ge (V

olts)

Current (Amps)

Low

er li

mit

of u

se fo

r silv

erca

dmiu

m o

xide

con

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s.M

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M D

UTY

Low

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mit

of u

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r fin

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lver

con

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s.LIG

HT

DU

TY

Idea

l low

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mit

of u

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HT

DU

TY

Idea

l low

er li

mit

of u

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r MED

IUM

DU

TY c

onta

cts

NO

TES:

For l

ow c

urre

nt a

pplic

atio

ns a

nd w

here

the

cont

acts

may

rem

ain

open

or c

lose

d fo

r lon

g pe

riods

the

use

of E

XTRA

LIG

HT

DU

TY(g

old

plat

ed) c

onta

cts

is h

ighl

y re

com

men

ded.

e.g.

on

inte

rtrip

circ

uits,

opt

o in

puts

for ‘

K'-R

elay

s or

Opt

imho

etc

.LIG

HT

DU

TY a

nd M

EDIU

M D

UTY

con

tact

s sh

ould

idea

lly b

e us

edat

or a

bove

twic

e th

e lo

wer

lim

it of

use

whe

re p

ract

ical

ly p

ossi

ble

Upp

er li

mit

of u

se fo

r gol

d pl

ated

silv

er c

onta

cts.

EXTR

A L

IGH

T D

UTY

17

Stay

put

Sprin

g re

turn

Stay

put s

prin

g re

turn

Aux

iliar

y

Switch

posi

tions

Sele

ct re

quire

d sw

itch

posi

tions

by

circ

ling

on a

ppro

pria

te d

iagr

am.

Switch

Ord

erin

g S

hee

tTh

is s

heet

may

be

phot

ocop

ied.

Switch

act

ion

Plea

se s

peci

fy ty

pe o

f sw

itch

actio

n re

quire

d by

tick

ing

appr

opria

te b

ox.

Conta

ct a

rrangem

ent

Plea

se s

peci

fy re

quire

d co

ntac

t arr

ange

men

t usi

ng th

e fo

llow

ing

tabl

e.

Con

tact

Posi

tion

or a

ngle

Con

tact

Lost

Num

ber

duty

mot

ion

?1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Title

eng

ravi

ng

Posi

tion

engr

avin

g:–

Escu

tcheo

n

Supp

ly b

lank

Not

requ

ired

1.

Ente

r req

uire

d po

sitio

ns a

t top

of t

able

(or a

ngle

s fo

r aux

iliar

y sw

itche

s).

2.Fo

r eac

h co

ntac

t sho

w w

hich

pos

ition

sco

ntac

t is

to b

e m

ade.

Ref

er to

exa

mpl

e fo

rgu

idan

ce.

3.En

ter d

uty

for e

ach

cont

act.

ELex

tra li

ght d

uty

(gol

d pl

ated

)L

light

dut

yM

med

ium

dut

yH

heav

y du

ty

4.If

cont

act i

s to

hav

e lo

st m

otio

npl

ease

tick

in fi

nal c

olum

n.

5.If

mor

e th

an 3

0 co

ntac

ts ar

e re

quire

dpl

ease

use

cop

y of

ord

er s

heet

(60

cont

acts

max

imum

).

6.Fo

r ord

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g pu

rpos

es e

ach

cont

act i

sde

taile

d in

divi

dual

ly o

n a

sepa

rate

line

of th

e or

derin

g sh

eet.

Whe

n ac

know

ledg

ed,

a w

iring

dia

gram

is p

rovi

ded

deta

iling

the

posi

tion

of e

ach

cont

act w

ithin

the

switc

h.

7.

Stan

dard

col

our s

chem

e fo

r esc

utch

eons

is b

lack

lette

rs o

n w

hite

bac

kgro

und.

For a

ltern

ativ

e co

lour

s re

fer t

o fa

ctor

y.

AB C D

EF

GH

45° S

tayp

uton

ly

A

C

E

G 90° S

tayp

uton

ly

AJ

M

60°

Sprin

gre

turn

onl

y

AB C D

EF

GH

Com

bine

d 90

° sta

yput

and

45°

sprin

g re

turn

only

Sequ

ence

dev

ice

Last

posi

tion

indi

cato

rLo

st m

otio

n

Handle

typ

ePl

ease

spe

cify

requ

ired

hand

le b

y tic

king

app

ropr

iate

box

.

For a

uxili

ary

switc

hes

plea

se s

tate

ang

ular

pos

ition

s at

whi

ch c

onta

cts

are

tom

ake

Spec

ial f

eatu

rePl

ease

spe

cify

requ

ired

spec

ial f

eatu

re b

y tic

king

app

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iate

box

.

AS

BSC

SD

SES

MS

AL

BLC

LD

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ML

No

hand

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sta

te re

quire

d sh

aft e

xten

sion

in m

mKe

y op

erat

edPl

ease

sta

te p

ositi

ons

in w

hich

key

can

be

rem

oved

Key

num

ber

(if k

now

n)

Engr

avin

gon

lock

on k

ey

Uni

vers

al d

river

leve

rFo

r aux

iliar

y sw

itch

only

Plea

se s

tate

requ

ired

shaf

t ext

ensi

on in

mm

(sta

ndar

d sh

ort 1

9mm

, sta

ndar

d lo

ng 4

4mm

).

Lock

ing

Plea

se in

dica

te ty

pe o

f loc

king

by

ticki

ng a

ppro

pria

te b

ox a

nd c

irclin

g po

sitio

ns in

whi

ch s

witc

h is

to b

e lo

cked

.

Padl

ocki

ngpu

ll to

lock

push

to re

leas

e

Barr

el lo

ckKe

y fre

e w

hen

switc

h lo

cked

key

free

at a

ll tim

es

Lock

-in p

ositi

ons

A

B C

D

E

F

G

H

J M

Exam

ple

1

Sprin

g re

turn

sw

itch

with

lost

mot

ion

cont

acts.

Switch Ordering sheetThis sheet is to enable a customer tospecify details of a switch to meethis own specific requirements.

Upon acknowledgement of theorder, the customer will receive fulldetails of the switch to be supplied,showing the exact position of thecontacts in the switch. An examplesheet detailing how contacts are tobe specified is shown below .

18

Contact arrangement

Please specify required contact arrangement using the following table.

Contact Position or angle Contact LostNumber duty motion ?

12345

Contact arrangement



12345

Contact arrangement



12345

Example 2 – Auxiliary switch

How to mark angles for auxiliary switch.

Example 3 – 90° Stayput switch

Contacts 1 and 2 are make-before-break.

Contact 3 makes in A and G.

Example 4 – 45° Stayput switch

Contact 1 makes in C,A and G but not in B and H.

19

Conta

ct a

rrangem

ent

Plea

se s

peci

fy re

quire

d co

ntac

t arr

ange

men

t usi

ng th

e fo

llow

ing

tabl

e.

Con

tact

Posi

tion

or a

ngle

Con

tact

Lost

Num

ber

duty

mot

ion

?1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Title

eng

ravi

ng

Posi

tion

engr

avin

g:–

Escu

tcheo

n

Supp

ly b

lank

Not

requ

ired

1.

Ente

r req

uire

d po

sitio

ns a

t top

of t

able

(or a

ngle

s fo

r aux

iliar

y sw

itche

s).

2.Fo

r eac

h co

ntac

t sho

w w

hich

pos

ition

sco

ntac

t is

to b

e m

ade.

Ref

er to

exa

mpl

e fo

rgu

idan

ce.

3.En

ter d

uty

for e

ach

cont

act.

ELex

tra li

ght d

uty

(gol

d pl

ated

)L

light

dut

yM

med

ium

dut

yH

heav

y du

ty

4.If

cont

act i

s to

hav

e lo

st m

otio

npl

ease

tick

in fi

nal c

olum

n.

5.If

mor

e th

an 3

0 co

ntac

ts ar

e re

quire

dpl

ease

use

cop

y of

ord

er s

heet

(60

cont

acts

max

imum

).

6.Fo

r ord

erin

g pu

rpos

es e

ach

cont

act i

sde

taile

d in

divi

dual

ly o

n a

sepa

rate

line

of th

e or

derin

g sh

eet.

Whe

n ac

know

ledg

ed,

a w

iring

dia

gram

is p

rovi

ded

deta

iling

the

posi

tion

of e

ach

cont

act w

ithin

the

switc

h.

7.

Stan

dard

col

our s

chem

e fo

r esc

utch

eons

is b

lack

lette

rs o

n w

hite

bac

kgro

und.

For a

ltern

ativ

e co

lour

s re

fer t

o fa

ctor

y.

Stay

put

Sprin

g re

turn

Stay

put s

prin

g re

turn

Aux

iliar

y

Switch

posi

tions

Sele

ct re

quire

d sw

itch

posi

tions

by

circ

ling

on a

ppro

pria

te d

iagr

am.

Switch

Ord

erin

g S

hee

tTh

is s

heet

may

be

phot

ocop

ied.

Switch

act

ion

Plea

se s

peci

fy ty

pe o

f sw

itch

actio

n re

quire

d by

tick

ing

appr

opria

te b

ox.

AB C D

EF

GH

45° S

tayp

uton

ly

A

C

E

G 90° S

tayp

uton

ly

AJ

M

60°

Sprin

gre

turn

onl

y

AB C D

EF

GH

Com

bine

d 90

° sta

yput

and

45°

sprin

g re

turn

only

Sequ

ence

dev

ice

Last

posi

tion

indi

cato

rLo

st m

otio

n

Handle

typ

ePl

ease

spe

cify

requ

ired

hand

le b

y tic

king

app

ropr

iate

box

.

For a

uxili

ary

switc

hes

plea

se s

tate

ang

ular

pos

ition

s at

whi

ch c

onta

cts

are

tom

ake

Spec

ial f

eatu

rePl

ease

spe

cify

requ

ired

spec

ial f

eatu

re b

y tic

king

app

ropr

iate

box

.

AS

BSC

SD

SES

MS

AL

BLC

LD

LEL

ML

No

hand

lePl

ease

sta

te re

quire

d sh

aft e

xten

sion

in m

mKe

y op

erat

edPl

ease

sta

te p

ositi

ons

in w

hich

key

can

be

rem

oved

Key

num

ber

(if k

now

n)

Engr

avin

gon

lock

on k

ey

Uni

vers

al d

river

leve

rFo

r aux

iliar

y sw

itch

only

Plea

se s

tate

requ

ired

shaf

t ext

ensi

on in

mm

(sta

ndar

d sh

ort 1

9mm

, sta

ndar

d lo

ng 4

4mm

).

Lock

ing

Plea

se in

dica

te ty

pe o

f loc

king

by

ticki

ng a

ppro

pria

te b

ox a

nd c

irclin

g po

sitio

ns in

whi

ch s

witc

h is

to b

e lo

cked

.

Padl

ocki

ngpu

ll to

lock

push

to re

leas

e

Barr

el lo

ckKe

y fre

e w

hen

switc

h lo

cked

key

free

at a

ll tim

es

Lock

-in p

ositi

ons

A

B C

D

E

F

G

H

J M

St Leonards Works, Stafford, ST17 4LX EnglandTel: 44 (0) 1785 223251 Fax: 44 (0) 1785 212232 Email: [email protected] Internet: www.gecalsthomgpc.co.uk

©1998 ALSTOM T&D Protection & Control Ltd

Our policy is one of continuous development. Accordingly the design of our products may change at any time. Whilst every effort is made to produce up to date literature, this brochure shouldonly be regarded as a guide and is intended for information purposes only. Its contents do not constitute an offer for sale or advice on the application of any product referred to in it.

ALSTOM T&D Protection & Control Ltd cannot be held responsible for any reliance on any decisions taken on its contents without specific advice.

Publication I7-001J 119810 CPS Printed in England.

ALSTOM T&D Protection & Control Ltd