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Special function rotary switches – Grayhill Special Function Rotary Switches 50 Series User Manual

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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.

12 1 2 3 4 5 6 7 8 9 10 11 12