Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Rotary Switches
Special Function Rotary Switches
DIMENSIONS
SELECTING A SWITCH
1. Select a Configuration: The total number of
positions always includes the 2 basic positions.
A (4) position switch of DDD
DM
configuration
would have 3 detent positions counterclockwise
of the momentary position.
2. Select Series, Angle of Throw, and Style:
See the Choices Chart. The basic switch
description, series, and throw are as follows:
1/2", 1/4 Amp, multi-deck 08 = 36° 09 = 30°
1", 1 Amp, multi-deck 42 = 36° 44 = 30°
1/2", 200 mA, single deck 50 = 36°
Electrical ratings are the same as those of the
conventional switches with the exception of life.
Life is limited to 10,000 cycles of operation
(25,000 cycles for Series 50) due to the spring
arrangement. Dimensions are the same as for
conventional types except for the shaft flat
orientation of the 3, 4, 5, and 6 pole, Series 09
and 44 in the DDDD
DM
configuration (see
chart).
3. Select Poles & Positions Per Pole: If you
do not find the poles and positions per pole you
need in one series, try another or contact the
factory. If the behind panel length is a problem,
select a multi-pole type instead of a single deck.
FEATURES
• Hold-To-Test, Hold-To-Calibrate,
And Other Momentary Applications
• Choice of Configurations, Ratings,
Styles and Circuitry
• 10,000 Cycles of Operation
Series 42 & 44
Series 50
Equivalent to Series 50 Standard Switches
Series 08 & 09
For all other dimensions and
specifications, see Standard
Switch pages.
No. of Dim Dim
Decks A B
1 .960 (24,38) .062 (1,57)
2 1.228 (31,19) .062 (1,57)
3 1.496 (38,0) .062 (1,57)
4 1.764 (44,81) .062 (1,57)
5 2.032 (51,61) .062 (1,57)
6 2.550 (64,77) .312 (7,92)
For all other dimensions and
specifications, see Standard
Switch pages.
No. of Dim.
Decks A
1 1.025 (26,04)
2 1.371 (34,82)
3 1.717 (43,61)
DESCRIPTION
A spring return rotary switch has 1 or more momentary positions. Maintaining contact at momentary
positions requires rotational force. Releasing the force allows the mechanism to return the contact
to a normal, or detent, position.
CONFIGURATIONS
This configuration indicates a counterclockwise
force is required to hold the switch at position
#1. “M” indicates a momentary position
counterclockwise of “D” and "D", detented ones.
Positions 1 2 3
MDD
Releasing this force breaks contact with position
#1 and returns the switch to #2. Normal rotary
switch detent action occurs when the switch is
rotated between position #2 and #3.
All of the configurations (except
MDM
) list a
basic 2 position arrangement which is shown in
italics. Example:
MD
DDDD or DDDD
DM
. Several
positions can be added during the switch
construction at the factory; but, any configuration
must always contain the 2 basic positions.
OPTIONS
Watertight panel seal; Multi-pole switches that
exceed the limits noted in the Selector Chart;
Series 50
MD
or
DM
configurations in Military
styles; Series 08, 09, & 44 in MM
MDM
MM, and
in MM
DD
MM, and in MMM
MMD
.
Not available through Distributors
ORDERING INFORMATION
Create the part number using this example.
Exception: Numbers beginning with 5 are
already complete part numbers.
Stem number from chart
(4 or 5 digits)
Number of Decks
Number of Poles/Deck
093103-2-045
Type of Contacts:
S=Shorting
N=Non-Shorting
Number of Positions/Pole
For all other dimensions and
specifications, see Standard
Switch pages.
SERIES 08,09,42,44,50
Spring Return
DIM
.
A
+ .046
(
1,17
)
–.020 (0,51)
DIM. B REF.
STUD PROJECTION
.
500
± .
015
(12,7 ± 0,38)
DIA.
.320 ± .015 (8,13 ± 0,38)
CIRCLE OF CENTERS
COMMON 36°
± 3°
DIM
.
A
+ .
046
(1
,
17)
–.020 (0,51)
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Rotary Switches
Special Function Rotary Switches
Con- Conven- Description Spring Return No. Poles Positions Per Location Of Term.
figur- tional Of Stem Number Of Per Pole & Contact Unique Position, Opp.
ation Switch Style (See Ordering Info.) Decks Deck Type Detent or Momentary Flat**
08A36 Standard 08317 1 to 6 1 02 to 05 (N or S) M 5 5
1 to 3 2 02 to 05 (N or S) M 5, 10 5
1 to 6 1 02 to 06 (N or S) M 6 6
1 to 3 2 02 to 06 (N or S) M 6, 12 6
09A30 Standard 09310 1 or 2 3 02 to 04 (N or S) M 4, 8, 12 4
1 4 02 or 03 (N or S) M 3, 6, 9, 12 3
DDDD
DM
1 5 or 6 02 (N or S) M 2, 4, 6, 8, 10, 12 2
42A36 Standard 42349 1 to 3 1 02 to 05 (N or S) M 5 5
1 2 02 to 05 (N or S) M 5, 10 5
42M36 Military 42352 1 to 3 1 02 to 05 (N or S) M 5 5
1 2 02 to 05 (N or S) M 5, 10 5
44A30 Standard 44346 1 to 3 1 02 to 06 (N or S) M 6 6
1 2 02 to 06 (N or S) M 6, 12 6
44M30 Military 44350 1 to 3 1 02 to 06 (N or S) M 6 6
1 2 02 to 06 (N or S) M 6, 12 6
08A36 Standard 08319 1 to 6 1 02 to 05 (N or S) M 1 1
1 to 3 2 02 to 05 (N or S) M 1, 6 1
1 to 6 1 02 to 06 (N or S) M 1 1
1 to 3 2 02 to 06 (N or S) M 1, 7 1
09A30 Standard 09312 1 or 2 3 02 to 04 (N or S) M 1, 5, 9 1
1 4 02 or 03 (N or S M 1, 4, 7, 10 1
1 5 or 6 02 (N or S) M 1, 3, 5, 7, 9, 11 1
MD
DDDD 1 to 3 1 02 to 06 (N or S) M 1 1
09M30 Military 09356 1 2 02 to 06 (N or S) M 1, 7 1
1 3 02 to 04 (N or S) M 1, 5, 9 1
42A36 Standard 42350 1 to 3 1 02 to 05 (N or S) M 1 1
1 2 02 to 05 (N or S) M 1, 6 1
42M36 Military 42353 1 to 3 1 02 to 05 (N or S) M 1 1
1 2 02 to 05 (N or S) M 1, 6 1
44A30 Standard 44312 1 to 3 1 02 to 06 (N or S) M 1 1
1 2 02 to 06 (N or S) M 1, 7 1
44M30 Military 44351 1 to 3 1 02 to 06 (N or S) M 1 1
1 2 02 to 06 (N or S) M 1, 7 1
50A36 Std., Solder Lug 503265-1-03N* 1 1 03N D 2 2
50P36 Std., PC Mount 503267-1-03N* 1 1 03N D 2 2
8A36 Standard 08316 1 to 6 1 03 (N or S) D 2 2
1 to 3 2 03 (N or S) D 2, 7 2
1 to 6 1 03 (N or S) D 2 2
9A30 Standard 09311 1 to 3 2 03 (N or S) D 2, 8 2
1 or 2 3 03 (N or S) D 2, 6, 10 2
1 4 03 (N or S) D 2, 5, 8, 11 2
MDM
42A36 Standard 42348 1 to 3 1 03 (N or S) D 2 2
1 2 03 (N or S) D 2, 7 2
42M36 Military 42351 1 to 3 1 03 (N or S) D 2 2
1 2 03 (N or S) D 2, 7 2
44A30 Standard 44345 1 to 3 1 03 (N or S) D 2 2
1 2 03 (N or S) D 2, 8 2
44M30 Military 44349 1 to 3 1 03 (N or S) D 2 2
1 2 03 (N or S) D 2, 8 2
CHOICES AND LIMITATIONS
*This is a complete (not stem) part number.
**Terminal opposite shaft flat when switch
is in its unique (detent or momentary)
position.
Available from your local Grayhill Distributor For prices and discounts, contact a local Sales
Office, an authorized local Distributor, or Grayhill.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Rotary Switches
Special Function Rotary Switches
DIMENSIONS
SPECIFICATIONS
Electrical Ratings
The switching elements, and therefore ratings,
are the same in an isolated position switch as in
a conventional rotary switch. Mechanical life is
also the same.
Additional Characteristics
Shaft Movement or Vertical Travel:
Series 09 .062 ± .020 (1,57 ± 0,51)
Series 42 & 44 .070 ± .020 (1,78 ± 0,51)
Series 50 & 51 .080 ± .020 (2,03 ± 0,51)
Push or Pull Force Required:
Series 09 1.75 ± .5 lbs
Series 42 & 44 2 ± .5 lbs
Series 50 & 51 2 ± .5 lbs
Stops: Single pole per deck switches with the
maximum number of positions are supplied with
stops only on request: 12 positions in 30° throw,
10 in 36°, and 8 in 45°.
Stop Strength: Approximately 7.5 pound-inches
for the isolated position stop.
FEATURES
• Protected Switch Positions For
Safety, Calibration, or Stand-by
• Choice of Push- or Pull-To-Turn
•1/2" Diameter, 200 mA and
1" Diameter, 1 Amp Switch
• 10,000 Cycles of Operation
Series 09 Series 42 & 44
Series 50 & 51
Dimension A
1 Deck 1.371 (34,82)
2 Decks 1.717 (43,61)
3 Decks 2.063 (52,40)
4 Decks 2.409 (61,19)
Dimension A
1 Deck 1.228 (31,19)
2 Decks 1.496 (38,0)
3 Decks 1.764 (44,81)
4 Decks 2.032 (51,61)
Dimension A
Solder Lug .893 ± .025 (22,68 ± 0,64)
PC Style .897 ± .025 (22,78 ± 0,64)
Grayhill part number and date code marked on label.
Customer number marked on request.
DESCRIPTION
An isolated position is one which cannot be reached by the normal rotation. An additional action is
required by the operator. It could be either Push-To-Turn, or Pull-To-Turn. After the switch is rotated
to the isolated position, releasing the shaft locks the switch in that position. Push or pull again to
rotate the switch again.
Use isolated positions to protect a switch position from indiscriminate rotation. Such safety positions
might include “calibrate”, “off” and/or “stand-by”.
EXTERNAL DIFFERENCES
The isolated position mechanism increases the
depth of the Series 50 and 51 by 0.217" (5,51
mm). All other dimensions remain unchanged.
In Series 9, 42 and 44, it has the appearance of
an additional deck section without terminals,
located directly behind the detent system.
Materials and Finishes
Materials and finishes for the isolation
mechanism are listed here.
Series 50 and 51
Housing: Zinc casting, tin/zinc-plated
Shaft: 303 stainless steel
Stop Pin and Stop Post: 303 stainless steel
Spring: Tinned music wire
Series 09
Housing: Phenolic for style A; Diallyl, for M
Shaft: 303 stainless steel, electro-polished
Stop Pin and Stop Post: 303 stainless steel
Spring: Tinned music wire
Series 42 and 44
Housing: Diallyl per MIL-M-14
Shaft: 303 stainless steel
Lock Plate: 302 stainless steel
Lock Arm: 316 stainless steel
Lock Post: Brass, tin/zinc-plated
Compression Spring: Tinned music wire
SERIES 09, 42, 44, 50, 51
Isolated Position
DIM
.
A
+ .
046 (1
,
17)
–.020 (0,51)
.062 (1,57)
DIM. A SOLDER
LUGS
DIM. A PC
TERMINALS
DIM. A + .046 –.020
(+ 0,05 –0,51)
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Rotary Switches
CONVENTIONAL NUMBERS
Start by creating a conventional switch number
in the manner which follows:
Series & Style
Angle of Throw
Number of Decks
09A30-01-1-12N
Type of Contacts
Shorting = S
Non-Shorting = N
Positions Per Pole
Poles Per Deck
Note: No stop arrangement suffix is needed.
See Describing Stops.
Special Function Rotary Switches
Standard Military Style Angle Of No. Of Poles Per Positions Shorting Or
Style Style** Description Throw Decks Deck Per Pole Non-Shorting
01 to 04 1 02 to 12 N or S
01 to 04 2 02 to 06 N or S
09A 09M Solder Lug 30° 01 to 04 3 02 to 04 N or S
01 to 04 4 02 or 03 N or S
01 to 04 5 02 N or S
01 to 03 6 02 N or S
42A 42M Solder Lug
42S — Sealed 36° 01 to 04 1 02 to 10 N or S
— 42H 125° Temperature Rating 01 to 04 2 02 to 05 N or S
— 42HS 125° Temp Rating, Sealed
01 to 04 1 02 to 12 N or S
01 to 04 2 02 to 06 N or S
30° 01 to 04 3 02 to 04 N or S
44A 44M Solder Lug 01 to 04 4 02 or 03 N or S
44S — Sealed 01 to 04 5 02 N or S
— 44H 125° Temperature Rating 01 to 04 6 02 N or S
— 44HS 125° Temp Rating, Sealed
45° 01 to 04 1 02 to 08 N or S
01 to 03 2 02 to 04 N or S
01 or 02 3 02 N or S
01 or 02 4 02 N
-- 50C Solder Lug
-- 50CP PC Mount 36° 01 1 02 to 10 N or S
-- 50M* Solder Lug, Sealed 2 02 to 05 N or S
-- 50MP* Sealed, PC
-- 51C Solder Lug 1 02 to 12 N or S
-- 51CP PC Mount 30° 01 2 02 to 06 N or S
-- 51M* Solder Lug, Sealed 3 02 or 03 N or S
-- 51MP* PC Mount, Sealed 4 02 or 03 N or S
*(Pull-to-Turn only) **For specifics on military qualified products, see Standard Switch Pages.
CHOICES AND LIMITATIONS
DESCRIBING STOPS
When a 1-pole switch has less than the maximum
number of positions, consider also the stop
system. Following is the arrangement for a 6
position switch with the position 1 isolated.
STOP 1P2 3 4 5 6 STOP
The word “STOP” indicates the conventional
switch stops, which limit rotation to positions 1
through 6. To isolate position 1 we insert only
one isolation post–between terminals 1 and 2.
The stop system already prevents rotation
beyond terminal 1.
In multi-pole switches, the stop system and
isolation system described for the first pole,
automatically affects the other poles. In the
example above, isolating position #1 on the first
pole isolates the first position (terminal #7) of
the second pole. See Standard Switch Pages
for a 2 pole circuit diagram for a 30° throw
switch.
Let's isolate position 1 and position 2 from all
other positions and from each other. We indicate
isolation posts as shown here:
12P1P2P3 4 5 6 7 8 9 10 11 12
To isolate just position 1, describe like this:
12P1P2 3 4 5 6 7 8 9 10 11 12
To isolate positions 1 and 2 from all other
positions, but not from each other, do this:
12P1 2P3 4 5 6 7 8 9 10 11 12
ORDERING INFORMATION
Indicate this as a SPECIAL switch to ensure
that no error is made when the order is entered.
Sample part number:
SPECIAL
09A30-04-1-12N
PULL 12P1P2P3 4 5 6 7 8 9 10 11 12
This sample part number orders a Series 9
standard style, four deck, one pole per deck,
twelve positions per pole rotary switch with non-
shorting contacts and isolation posts between
positions 12 and 1, between 1 and 2, and
between 2 and 3.
This lengthy order number is required to prevent
any possible confusion in ordering the switch.
When we receive your order, we will assign a
special “short form” part number to facilitate
future identification of this special switch. This
number is sequentially assigned as the need
arises, and is non-descriptive. A typical “short
form” special part number might be 09YY12345.
Contact Grayhill for price.
Not available through Distributors.
DESCRIBING POSITIONS
The Grayhill system for isolating positions lets
you choose the positions to be isolated. Grayhill
inserts isolation posts next to the positions to be
isolated. Consider a continuous rotation switch
of the Series 09A with a 30° angle of throw. The
terminals are listed here from 1 through 12 with
a space between each to indicate where isolation
posts might be inserted.
12123456789101112
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Grayhill:
44A30-01-1-05N 44A30-02-1-12N 44A30-03-6-02N 44A45-05-1-07N 44A45-01-2-02N 44A60-01-1-05N 44A30-07-
2-03N 44A30-05-1-06S 44A30-04-4-03N 44A30-04-1-03S 44A45-03-2-03N 44A30-01-1-11S 44A30-04-6-02N
44A60-01-2-03N 44A45-05-1-08N 44A45-04-2-02N 44A30-02-3-04S 44A45-02-2-02N 44A30-03-1-12N 44A45-06-1-
04N 44A30-01-6-02N 44A30-03-3-03N 44A30-02-1-05N 44A30-05-4-03S 44A45-01-1-02S 44A30-02-2-04N 44A60-
04-3-02N 44A30-01-2-05S 44A45-03-1-03S 44A30-10-2-06N 44A30-04-1-11S 44A30-09-2-05N 44A30-07-2-05S
44A60-02-1-02N 44A60-02-1-06N 443121-1-04N 443513-1-03N 44A45-02-1-03N 44A30-04-3-04N 44A30-08-3-04S
443452-1-03N 443501-1-05N 44A30-04-2-03N 443462-1-03S 44A45-08-1-05N 44A45-03-1-05N 44A45-02-2-03S
44A30-03-2-03N 44A30-06-2-04N 44A30-04-1-08S 44A60-08B06N 44A90-06-1-02N 443121-1-06S 44A90-01-1-
04N 44A30-01-1-03N 44A30-05-1-12N 44A45-03-1-07N 44A30-06-1-12S 44A30-04-1-06N 44A60-04-1-02N
44A60-12B06N 44A30-09-1-07N 44A30-08-1-09N 44A60-03-2-03N 44A30-02-1-08N 44A30-03-1-03N 44A30-01-1-
06S 443461-1-02N 44A60-05-1-04N 443461-2-03N 44A45-02-4-02N 44A90-05-1-04N 44A45-03-2-04S 44A45-04-
1-06S 44A45-05-1-05N 44A30-08-1-12N 44A90-02B04N 44A30-01-4-03N 44A60-07B06N 44A30-06-4-02N 44A30-
07B12N 44A45-03B08N 44A60-04-1-05N 44A30-02-1-09S 44A45-02-1-06N 44A60-03-1-03N 44A30-03-1-05N
44A45-01-1-04S 44A45-06-2-04N 44A30-02-4-03S 44A60-12-1-06N 44A60-03-1-06N 44A30-01-1-04S 44A45-02-1-
02N 44A30-08-3-04N 44A30-01-1-09S 443493-1-03N 44A45-07-1-05S 44A30-01-1-08N 44A60-05B06N
