Multi-Deck Rotary Switches
SERIES 08
SERIES 09
.5" Diameter, 1/4 Amp, PC Mount
FEAtuRES
• Gold-plated Contact System
• 30°, 36°, 60° or 90° Angle of
Throw Options
• Compatible with Logic Level
Voltages and Currents
DIMENSIONS
i
n inches (and millimeters)
PC Mount Style
Rear Views
Series 09
30° Angle of throw
Front view shows terminal location of
36° angle of throw. Transpose rear view
for terminal location of 30° angle of
throw. See Circuit Diagrams for 60° and
90° angles of throw.
.562 ± .020
(14,27 ± 0,51)
DIA.
.312 ± .020
(7,92 ± 0,51)
.588 ± .020
(14,73 ± 0,51)
.375 ± .020
(9,53 ± 0,51)
.250 ± .020
(6,35 ± 0,51)
.134 ± .010
(3,40 ± 0,25)
C C C
L L L
DIM. A + .046 – .020
(+ 0,05 – 0,51)
.135 ± .015 (3,43 ± 0,38)
C
OF NON-
L
TURN
TAB
.134
± .010
(3,40
± 0,25)
1
2
.094 ± .010
(2,38 ± 0,25)
#0 THREAD
.187 ± .015
(4,75 ± 0,38)
TyP.
1.200 ± .020
(30,48 ± 0,51)
TyP.
.125 + .001 – .002
(3,18 + 0,03 – 0,05)
DIA.
.562 (14,27) SER. 8
.625 (15,88) SER. 9
± .015 (0,38)
COMMON LUG
NON-TURN TAB .062 ± .005
(1,58 ± 0,13) WIDE By
.020 ± .003 (0,51 ± 0,08) THICK
SEE NOTE
Note:
Common location for a single pole per
deck switch. For common location on
multi-pole switches, see circuit diagrams.
INTEGRAL ASSEMBLy NUT,
DO NOT REMOVE
1/4-32 UNEF-2A THREAD
Series 08
36° Angle of throw
TERMINAL DIMENSIONS AT
THIS POINT ARE .032 + .000 – .010
(0,81 + 0,00 – 0,25) WIDE
By .015 + .000 – .003
(0,38 + 0,00 – 0,08) THICK
.500 ± .020
(12,7 ± 0,51)
DIA.
1
GRAyHILL
Special switches with one-sided termination can be made for circuitry which would
require two-sided termination in standard switches. Contact Grayhill for a special
part number. See also Special Options, page J-10.
Grayhill part number and date code marked on detent cover label. Customer part
number marked on request.
.187 ± .015
(4,75 ± 0,38)
TyP.
1.125 ± .020
(28,58 ± 0,51)
TyP.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
6
5
*termination
A standard switch uses the entire 360° of each deck as required by the circuitry.
Thus one-sided termination is standard for Series 08, 36°, 1 pole switches with 1
to 5 positions per pole; it is also standard for Series 09, 30°, 1 pole switches with 1
to 6 positions per pole. Two-sided termination is standard for 1 pole switches with
more positions per pole and for switches of 2 or more poles per deck.
3
2
4
7
6
.260 ± .015
(6,60 ± 0,38)
DIM. B REF.
STUD
PROJECTION
GRAyHILL
12
11
.070 ± .010
(1,78 ± 0,25)
TyP.
.140 ± .015
(3,56 ± 0,38)
TyP.
10
9
5
4
3
8
Rotary Switches
.140 ± .015
(3,56 ± 0,38)
TyP.
10
9
9
7
Multi-Deck Rotary Switches
MILItARy QuALIFIED
Series 08 and 09 military switches are qualified
to MIL-DTL-3786/13. They include 30°, 36°, 45°
and 60° angles of throw with solder lug terminals
in sealed and unsealed styles. See front and rear
views at right. Standard variations which do not
affect switch performance can also be marked as
qualified product–contact Grayhill.
The military style is dimensionally the same as
the standard except for the solder lug. Convert
standard style switch drawings to military style
drawings by including this terminal detail and
changing the over-terminal dimensions shown
here. Grayhill can provide complete specification
drawings. Qualified switches can be ordered by
the Grayhill number or the "M" number; they will
be marked per MIL-DTL-3786/13.
Front view shows terminal location of
Series 09, 30° angle of throw. Transpose
rear view for terminal location of other
angles of throw.
.260 ± .015
(6,60 ± 0,38)
C
OF NON-TURN
L
TAB
Series 09
30° Angle of throw
.562 ± .020
(14,27 ± 0,51)
DIA.
.781 ± .020
(19,83 ± 0,51)
OVER TERMINALS
10
9
GRAyHILL
Series 08
36° Angle of throw
.718 ± .020
(18,24 ± 0,51)
OVER
TERMINALS
.500 ± .020
(12,7 ± 0,51)
DIA.
8
GRAyHILL
1
12
10
9
11
8
7
6
7
6
5
5
SEE NOTE
.094 ± .010
(2,38 ± 0,25)
Note:
Common location for a single pole per
deck switch. For common location on
multi-pole switches, see circuit diagrams.
30°
terminal Detail
.034 ± .003
(0,86 ± 0,08)
.068 ± .005
(1,73 ± 0,13)
SPECIFICAtIONS
Electrical Ratings
Standard Style
Rated:
To make and break the following loads:
1/4 amp, 115 Vac resistive; 1/4 amp, 6-28 Vdc
resistive; 20 mA, 115 Vdc resistive; 50 mA, 115
Vac inductive; 20 mA, 28 Vdc inductive; to carry
4 amps continuous.
Contact Resistance:
After 25,000 cycles of
operation, 50 milliohms maximum
Insulation Resistance:
1,000 megohms
minimum between terminals and shaft
Voltage Breakdown: 1,000 Vac initially
(500 Vac or better after most environmental
tests)
Life Expectancy:
50,000 mechanical cycles
of operation.
Note:
Actual life is determined
by a number of factors, including electrical
loading, rate of rotation and environment, as
well as maximum contact resistance, minimum
insulation resistance and minimum voltage
breakdown required at the end of life.
MIL-DTL-3786.
Contact Resistance:
50 milliohms maximum
after life
Insulation Resistance:
1,000 megaohms
minimum between terminals and shaft
Dielectric Strength:
500 Vac (atmospheric
pressure) and 350 Vac (reduced pressure)
between mutually insulated parts.
The Series 08M and 09M also meet the
requirements of MIL-DTL-3786 SR13 for
moisture resistance, stop strength, rotational
torque, vibration (10 to 2,000 cps), medium and
high shock, salt spray, explosion, thermal shock
(-65°C to 85°C) and terminal pull. When tested
at sea level, 25°C and 68% relative humidity with
failure criteria of 50 milliohms maximum contact
resistance and 500 ac breakdown voltage, these
V
switches will make and break 250 mA at 28 Vdc
inductive (250 millihenries): 1/2 amp: at 28 Vdc
resistive: 1/2 amp; at 115 Vac: 60 Hz resistive
for 10,000 cycles of operation.
Mounting Nuts,Washers: Brass, tin/zinc-plated
and or stainless steel.
Materials and Finishes
Military Qualified
Electrical Ratings
Military Qualified
Qualified to the following MIL-DtL-3786/13
Circuit Values:
(Also see Standard Style
description.) The Series 08M and 09M have been
tested to meet the requirements of MIL-S-3786,
Style SR13, the majority of which are listed. At
85°C, approximately 68% relative humidity and
sea level pressure, the switches have been
tested to make and break the following loads, as
stated in MIL-DTL-3786/SR13: 125 milliamperes
at 28 Vdc resistive: 75 milliamperes at 115 Vac
resistive.
The switches have also been tested at reduced
barometric pressure (70,000 feet), 25°C at
approximately 68% relative humidity to make
and break the following loads as stated in
MIL-DTL-3786/SR13. 50 milliamperes 28 Vdc
resistive; 20 milliamperes 115 Vac resistive.
When tested to the above loads at the stated
conditions, the Series 08M and 09M switches
meet the following life-limiting criteria after
25,000 cycles of operation in accordance with
Materials and Finishes
Standard Style
Deck Separators, End Plate and Switch Bases:
Diallyl per (MIL-M-14) ASTM-D-5948
Rotor Mounting Plate: Thermoplastic
Mounting Bushing: Brass, tin/zinc-plated.
Shaft, Cover, Stop Plate, Retaining Ring,
through Bolts, Shaft Extension, Stop Arm,
thrust Washers, Cover Plate and Rear
Support Plate, Lockwashers and Nuts:
Stainless steel
Detent Balls:
Steel, nickel-plated
Detent Springs:
Tinned music wire
terminals, Stator (Base) Contacts and
Common Plate:
Brass, gold plate .00001"
minimum over silver plate .0003" minimum
Rotor Contact: Silver alloy, gold-plated .00001"
minimum
Mounting Hardware: Two mounting nuts .062"
(1,57) thick by .312" (7,92) across flats and one
internal tooth lockwasher are supplied with this
switch.
Mounting Nuts,Washers: Brass, tin/zinc-plated
and or stainless steel.
Switch Bases: Melamine per (MIL-M-14) ASTM-
D-5948
Cover, Deck Separators and End Plate:
Phenolic per (MIL-M-14) ASTM-D-5948
Rotor Mounting Plate: Thermoplastic
Mounting Bushing: Brass, tin/zinc-plated.
Shaft, Retaining Rings, through Bolts, Shaft
Extension, Stop Washers, Stop Arm, thrust
Washers, Nuts, Cover Plate and Rear Support
Plate: Stainless steel
Detent Balls: Steel, nickel-plated
Detent Springs:
Tinned Music wire
terminals, Stator (Base) Contacts and
Common Plate:
Brass, gold plate .00001"
minimum over silver plate .0003" minimum
Rotor Contact:
Silver alloy, gold-plated .00001"
minimum
Mounting Hardware: Two mounting nuts .062"
(1,57) thick by .312" (7,92) across flats and one
internal lockwasher are supplied with switch.
Lockwasher: Stainless steel
ADDItIONAL CHARACtERIStICS
Standard Style and Military Qualified
Contacts:
Shorting or Non-shorting contacts
available in 30°, 36° and 45° angle of throw rotary
switches. Non-shorting contacts available in 60°
and 90° angle of throw switches. All are wiping
contacts with over 100 grams of contact force.
Stop Strength: 12 lb-inches minimum
Rotational torque: 8-64 oz-in depending upon
the number of poles per deck and the number
of decks
Extended Studs:
Switches of six decks or
more have longer studs with extra stud nuts for
recommended double end mounting.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
3
2
4
3
2
15°
4
36°
1
Rotary Switches
Switching Power Supply Study Group
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