Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois

60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Single Deck Rotary Switches

ADJUSTABLE STOPS: Style D

Adjustable stops permit the user to set and

reset the number of positions per poles. Shown

in the diagram, a plastic washer can be removed

to reveal slots at the base of the bushing. Stop

blades can be inserted into the appropriate slots

to limit switch rotation. Positions per pole

configuration can thus be changed to meet the

needs of the application. Dimensions are the

same as the fixed stop version, when plastic

washer is in place. Most desirable for prototype

work. Readily available from local distributor.

Shaft and panel seal switches

are watertight to the panel. They

are not totally process sealed

like the Style “T”. Panel is sealed

by a gasket at the base of the

bushing. Shaft is sealed by an

O-ring inside the bushing. After

mounting, seals do not alter

switch dimensions. See Style

“S” (standard switches) and

Style “M” (military switches) in

the Choices and Limitations

chart.

SHAFT AND PANEL SEAL: Styles S and M

SCREWDRIVER SLOTTED SHAFT: Style B

Form, fit and function equiva-

lent to standard shaft switches.

The dimensions shown have

evolved as the most popular for

this type of switch. See Style “B”

in the Choices and Limitations

chart. Previous users may have

ordered these switches by a

non-descriptive part number

containing a “Y”. Contact

Grayhill, if in doubt about a

cross-reference.

METRIC SHAFT AND BUSHING: Style E

Metric standard dimensions for

the shaft and bushing are shown

in the drawing. Other dimensions

approximately the same as

shown in dimensional drawing.

Contact Grayhill for exact

dimensions. See Style “E” in

the Choices and Limitations

chart.

SUGGESTED ADJUSTABLE STOP

SUBSTITUTION GUIDE

Fixed

Adj. Stop

Fixed

Adj. Stop

Stop

Style

Stop

Style

Style

Equivalent

Style

Equivalent

50A

50D

51A

51D

50C

50CD

51C

51CD

50CP

50CDP

51CP

51CDP

50M

50CD*

51M

51CD*

50MP

50CDP*

51MP

51CDP*

50P

50DP

51P

51DP

50S

50D*

51S

51D*

50SP

50DP*

51SP

51DP*

*Form fit and function equivalents, but not watertight sealed to

the panel.

Stop

Blade

Slots

Plastic

Washer

Stop

Blades

ACCESSORY: Non-Turn Washers

In Inches (and millimeters)

Part No. 71J1103

Designed to fit the double flatted bushing

of the metric dimensioned bushing, this

non-turn washer permits a round hole for

the bushing and the tab while still prevent-

ing switch rotation. Washer is only sold

when accompanied by a like number of

switches. Washer is 302 stainless steel.

.250 ± .003

(6,35 ± 0,08)

.060 ± .001

(1,52 ± 0,25)

.400

± .005

DIA.

(10,16

± 0,13)

90° ± 1°

.125

± .005

(3,16

± 0,13)

.015

(0,38)

RADIUS

MAX.

.025

± .001

(0,64

± 0,03)

Dimensions are in millimeters

Part No. 50J1066

Cut round hole for the bushing and for the

non-turn tab. Washer fits the double D

bushing flats. Washer is sold only when

accompanied by an order for a like number

of switches. Washer is 302 stainless steel.

C

L

1,57 ± 0,08

5,08

± 0,05

11,13

± 0,13

DIA.

90˚ ± 1˚

0,64

± 0,05

2,36

± 0,13

.015

(0,38)

RADIUS

MAX.

0.032

0.375

0.125

0.187

SEAL

"A"

.032±.005

(0,81±0,13)

.125±.015

(3,18±0,38)

.050±.005

(1,27±0,13)

7,0

±0,51

9,53

±0,38

6,35

±0,38)

4,0

±0,03

M7 x 0,75

6,0±0,08

3,15

±0,12

"A"

Part No. 50J5140-4

Designed to fit the single flatted bushing of

the "K" style switches, this non-turn washer

prevents switch rotation when using a full

round hole in the panel. Washer is only sold

when accompanied by a like number of

switches. Washer is 302 stainless steel.

Rotary

7