description.)TheꢀSeriesꢀ08Mꢀandꢀ09Mꢀhaveꢀbeenꢀ
resistanceꢀandꢀ500Vacꢀbreakdownꢀvoltage,ꢀtheseꢀ
Multi-Deck Rotary Switches
MILIꢀARꢂ QuALIFIED
Series 09
Series 08
Seriesꢀ08ꢀandꢀ09ꢀmilitaryꢀswitchesꢀareꢀqualifiedꢀ
toꢀMIL-DTL-3786/13.ꢀTheyꢀincludeꢀ30°,ꢀ36°,ꢀ45°ꢀ
andꢀ60°ꢀanglesꢀofꢀthrowꢀwithꢀsolderꢀlugꢀterminalsꢀ
inꢀsealedꢀandꢀunsealedꢀstyles.ꢀSeeꢀfrontꢀandꢀrearꢀ
viewsꢀatꢀright.ꢀStandardꢀvariationsꢀwhichꢀdoꢀnotꢀ
affectꢀswitchꢀperformanceꢀcanꢀalsoꢀbeꢀmarkedꢀasꢀ
qualifiedꢀproduct–contactꢀGrayhill.
Frontꢀviewꢀshowsꢀterminalꢀlocationꢀofꢀ
Seriesꢀ09,ꢀ30°ꢀangleꢀofꢀthrow.ꢀTransposeꢀ
rearꢀviewꢀforꢀterminalꢀlocationꢀofꢀotherꢀ
anglesꢀofꢀthrow.
30° Angle of ꢀhrow
36° Angle of ꢀhrow
.562ꢀ±ꢀ.020
(14,27ꢀ±ꢀ0,51)
DIA.
.781ꢀ±ꢀ.020
(19,83ꢀ±ꢀ0,51)
OVERꢀTERMINALS
.718ꢀ±ꢀ.020
(18,24ꢀ±ꢀ0,51)
OVERꢀ
.260ꢀ±ꢀ.015
TERMINALS
(6,60ꢀ±ꢀ0,38)
C
OFꢀNON-TURN
TAB
L
.500ꢀ±ꢀ.020
(12,7ꢀ±ꢀ0,51)
DIA.
Theꢀmilitaryꢀstyleꢀisꢀdimensionallyꢀtheꢀsameꢀasꢀ
theꢀstandardꢀexceptꢀforꢀtheꢀsolderꢀlug.ꢀConvertꢀ
standardꢀstyleꢀswitchꢀdrawingsꢀtoꢀmilitaryꢀstyleꢀ
drawingsꢀ byꢀ includingꢀ thisꢀ terminalꢀ detailꢀ andꢀ
changingꢀ theꢀ over-terminalꢀ dimensionsꢀ shownꢀ
here.ꢀGrayhillꢀcanꢀprovideꢀcompleteꢀspecificationꢀ
drawings.ꢀQualifiedꢀswitchesꢀcanꢀbeꢀorderedꢀbyꢀ
theꢀGrayhillꢀnumberꢀorꢀtheꢀ"M"ꢀnumber;ꢀtheyꢀwillꢀ
beꢀmarkedꢀperꢀMIL-DTL-3786/13.ꢀ
15°
36°
SEEꢀNOTE
30°
.094ꢀ±ꢀ.010
(2,38ꢀ±ꢀ0,25)
ꢀerminal Detail
.034ꢀ±ꢀ.003
(0,86ꢀ±ꢀ0,08)
Note: Commonꢀlocationꢀforꢀaꢀsingleꢀpoleꢀperꢀ
ꢀ
ꢀ
deckꢀswitch.ꢀForꢀcommonꢀlocationꢀonꢀ
multi-poleꢀswitches,ꢀseeꢀcircuitꢀdiagrams.
.068ꢀ±ꢀ.005
(1,73ꢀ±ꢀ0,13)
SPECIFICAꢀIONS
MoꢁntingNꢁts,Washers:ꢀBrass,ꢀtin/zinc-platedꢀ
andꢀorꢀstainlessꢀsteel.
Materials and Finishes
MIL-DTL-3786.
Electrical Ratings
Standard Style
Contact Resistance:ꢀ50ꢀmilliohmsꢀmaximumꢀ
afterꢀlife
Rated: Toꢀmakeꢀandꢀbreakꢀtheꢀfollowingꢀloads:ꢀ
1/4ꢀamp,ꢀ115ꢀVacꢀresistive;ꢀ1/4ꢀamp,ꢀ6-28ꢀVdcꢀ
resistive;ꢀ20ꢀmA,ꢀ115ꢀVdcꢀresistive;ꢀ50ꢀmA,ꢀ115ꢀ
Vacꢀinductive;ꢀ20ꢀmA,ꢀ28ꢀVdcꢀinductive;ꢀtoꢀcarryꢀ
4ꢀampsꢀcontinuous.
Military Qꢁalified
Insꢁlation Resistance: 1,000ꢀ megaohmsꢀ
minimumꢀbetweenꢀterminalsꢀandꢀshaft
Dielectric Strength:ꢀ 500ꢀ Vacꢀ (atmosphericꢀ
pressure)ꢀ andꢀ 350ꢀ Vacꢀ (reducedꢀ pressure)ꢀ
betweenꢀmutuallyꢀinsulatedꢀparts.
Deck Separators, End Plate and Switch Bases:ꢀ
Diallylꢀperꢀ(MIL-M-14)ꢀASTM-D-5948ꢀ
Rotor Moꢁnting Plate:ꢀThermoplastic
Moꢁnting Bꢁshing:ꢀBrass,ꢀtin/zinc-plated.
Shaft, Cover, Stop Plate, Retaining Ring,
ꢀhroꢁgh Bolts, Shaft Extension, Stop Arm,
ꢀhrꢁst Washers, Cover Plate and Rear
Sꢁpport Plate, Lockwashers and Nꢁts:ꢀ
Stainlessꢀsteel
Contact Resistance:ꢀ Afterꢀ 25,000ꢀ cyclesꢀ ofꢀ
operation,ꢀ50ꢀmilliohmsꢀmaximum
Insꢁlation Resistance: 1,000ꢀ megohmsꢀ
minimumꢀbetweenꢀterminalsꢀandꢀshaft
Voltage Breakdown:ꢀ1,000ꢀVacꢀinitiallyꢀ
(500ꢀ Vacꢀ orꢀ betterꢀ afterꢀ mostꢀ environmentalꢀ
tests)
Life Expectancy: 50,000ꢀ mechanicalꢀ cyclesꢀ
ofꢀ operation.ꢀ Note: Actualꢀ lifeꢀ isꢀ determinedꢀ
byꢀ aꢀ numberꢀ ofꢀ factors,ꢀ includingꢀ electricalꢀ
loading,ꢀ rateꢀofꢀ rotationꢀ andꢀ environment,ꢀ asꢀ
wellꢀasꢀmaximumꢀcontactꢀresistance,ꢀminimumꢀ
insulationꢀ resistanceꢀ andꢀ minimumꢀ voltageꢀ
breakdownꢀrequiredꢀatꢀtheꢀendꢀofꢀlife.
Theꢀ Seriesꢀ 08Mꢀ andꢀ 09Mꢀ alsoꢀ meetꢀ theꢀ
requirementsꢀ ofꢀ MIL-DTL-3786ꢀ SR13ꢀ forꢀ
moistureꢀ resistance,ꢀ stopꢀ strength,ꢀ rotationalꢀ
torque,ꢀvibrationꢀ(10ꢀtoꢀ2,000ꢀcps),ꢀmediumꢀandꢀ
highꢀshock,ꢀsaltꢀspray,ꢀexplosion,ꢀthermalꢀshockꢀ
(-65°Cꢀtoꢀ85°C)ꢀandꢀterminalꢀpull.ꢀWhenꢀtestedꢀ
atꢀseaꢀlevel,ꢀ25°Cꢀandꢀ68%ꢀrelativeꢀhumidityꢀwithꢀ
failureꢀcriteriaꢀofꢀ50ꢀmilliohmsꢀmaximumꢀcontactꢀ
Detent Balls: Steel,ꢀnickel-plated
Detent Springs: Tinnedꢀmusicꢀwire
ꢀerminals, Stator (Base) Contacts and
Common Plate:ꢀ Brass,ꢀ goldꢀ plateꢀ .00001"ꢀ
minimumꢀoverꢀsilverꢀplateꢀ.0003"ꢀminimum
RotorContact:ꢀSilverꢀalloy,ꢀgold-platedꢀ.00001"ꢀ
minimum
Moꢁnting Hardware:ꢀTwoꢀmountingꢀnutsꢀ.062"ꢀ
(1,57)ꢀthickꢀbyꢀ.312"ꢀ(7,92)ꢀacrossꢀflatsꢀandꢀoneꢀ
internalꢀtoothꢀlockwasherꢀareꢀsuppliedꢀwithꢀthisꢀ
switch.
switchesꢀwillꢀmakeꢀandꢀbreakꢀ250ꢀmAꢀatꢀ28ꢀVdcꢀ
inductiveꢀ(250ꢀmillihenries):ꢀ1/2ꢀamp:ꢀatꢀ28ꢀVdcꢀ
resistive:ꢀ1/2ꢀamp;ꢀatꢀ115ꢀVac:ꢀ60ꢀHzꢀresistiveꢀ
forꢀ10,000ꢀcyclesꢀofꢀoperation.
Electrical Ratings
Military Qꢁalified
Qꢁalified to the following MIL-DꢀL-3786/13
Circꢁit Valꢁes:ꢀ (Alsoꢀ seeꢀ Standardꢀ Styleꢀ
MoꢁntingNꢁts,Washers:ꢀBrass,ꢀtin/zinc-platedꢀ
andꢀorꢀstainlessꢀsteel.
Materials and Finishes
Standard Style
SwitchBases:ꢀMelamineꢀperꢀ(MIL-M-14)ꢀASTM-
D-5948ꢀ
Cover, Deck Separators and End Plate:
Phenolicꢀperꢀ(MIL-M-14)ꢀASTM-D-5948ꢀ
Rotor Moꢁnting Plate:ꢀThermoplastic
Moꢁnting Bꢁshing:ꢀBrass,ꢀtin/zinc-plated.
Shaft, Retaining Rings,ꢀhroꢁgh Bolts, Shaft
Extension, Stop Washers, Stop Arm, ꢀhrꢁst
Washers,Nꢁts, CoverPlateandRearSꢁpport
Plate:ꢀStainlessꢀsteel
ADDIꢀIONAL CHARACꢀERISꢀICS
Standard Style and Military Qꢁalified
Contacts:ꢀ Shortingꢀ orꢀ Non-shortingꢀ contactsꢀ
availableꢀinꢀ30°,ꢀ36°ꢀandꢀ45°ꢀangleꢀofꢀthrowꢀrotaryꢀ
switches.ꢀNon-shortingꢀcontactsꢀavailableꢀinꢀ60°ꢀ
andꢀ90°ꢀangleꢀofꢀthrowꢀswitches.ꢀAllꢀareꢀwipingꢀ
contactsꢀwithꢀoverꢀ100ꢀgramsꢀofꢀcontactꢀforce.
Stop Strength:ꢀ12ꢀlb-inchesꢀminimum
Rotational ꢀorqꢁe:ꢀ8-64ꢀoz-inꢀdependingꢀuponꢀ
theꢀnumberꢀofꢀpolesꢀperꢀdeckꢀandꢀtheꢀnumberꢀ
ofꢀdecks
Extended Stꢁds: Switchesꢀ ofꢀ sixꢀ decksꢀ orꢀ
moreꢀhaveꢀlongerꢀstudsꢀwithꢀextraꢀstudꢀnutsꢀforꢀ
recommendedꢀdoubleꢀendꢀmounting.
testedꢀtoꢀmeetꢀtheꢀrequirementsꢀofꢀMIL-S-3786,ꢀ
StyleꢀSR13,ꢀtheꢀmajorityꢀofꢀwhichꢀareꢀlisted.ꢀAtꢀ
85°C,ꢀapproximatelyꢀ68%ꢀrelativeꢀhumidityꢀandꢀ
seaꢀ levelꢀ pressure,ꢀ theꢀ switchesꢀ haveꢀ beenꢀ
testedꢀtoꢀmakeꢀandꢀbreakꢀtheꢀfollowingꢀloads,ꢀasꢀ
statedꢀinꢀMIL-DTL-3786/SR13:ꢀ125ꢀmilliamperesꢀ
atꢀ28ꢀVdcꢀresistive:ꢀ75ꢀmilliamperesꢀatꢀ115ꢀVacꢀ
resistive.
Detent Balls:ꢀSteel,ꢀnickel-plated
Theꢀswitchesꢀhaveꢀalsoꢀbeenꢀtestedꢀatꢀreducedꢀ
barometricꢀ pressureꢀ (70,000ꢀ feet),ꢀ 25°Cꢀ atꢀ
approximatelyꢀ68%ꢀrelativeꢀhumidityꢀtoꢀmakeꢀ
andꢀ breakꢀ theꢀ followingꢀ loadsꢀ asꢀ statedꢀ inꢀ
MIL-DTL-3786/SR13.ꢀ50ꢀmilliamperesꢀ28ꢀVdcꢀ
resistive;ꢀ 20ꢀ milliamperesꢀ 115ꢀ Vacꢀ resistive.ꢀ
Whenꢀtestedꢀtoꢀtheꢀaboveꢀloadsꢀatꢀtheꢀstatedꢀ
conditions,ꢀtheꢀSeriesꢀ08Mꢀandꢀ09Mꢀswitchesꢀ
meetꢀ theꢀ followingꢀ life-limitingꢀ criteriaꢀ afterꢀ
25,000ꢀcyclesꢀofꢀoperationꢀinꢀaccordanceꢀwithꢀ
Detent Springs: TinnedꢀMusicꢀwire
ꢀerminals, Stator (Base) Contacts and
Common Plate:ꢀ Brass,ꢀ goldꢀ plateꢀ .00001"ꢀ
minimumꢀoverꢀsilverꢀplateꢀ.0003"ꢀminimum
RotorContact:Silverꢀalloy,ꢀgold-platedꢀ.00001"ꢀ
minimum
Moꢁnting Hardware:ꢀTwoꢀmountingꢀnutsꢀ.062"ꢀ
(1,57)ꢀthickꢀbyꢀ.312"ꢀ(7,92)ꢀacrossꢀflatsꢀandꢀoneꢀ
internalꢀlockwasherꢀareꢀsuppliedꢀwithꢀswitch.
Lockwasher:ꢀStainlessꢀsteel
Grayhill, Inc.
• 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com