Grayhill Single Deck Rotary Switches 51 User Manual

Single Deck Rotary Switches

.203 ± .003
(5,16 ± 0,08)
ACROSS
FLATS

DIMENSION

D

A

POS. 1

OPTIONAL
PANEL SEAL
GASKET

.093 ± .005
(2,36 ± 0,13)

.171 ± .015
(4,34 ± 0,38)

.125 (3,18)
REF.

TERMINALS ARE
.016 ± .003 (0,41 ± 0,08) SQ.

TERMINAL SEALANT
IN STYLE T

COMMON Ø .025 ± .002
(0,64 ± 0,06) AND EXTEND
TO SAME PLANE AS
POSITION TERMINALS

.125 ± .015
(3,18 ± 0,38)

.020 ± .003

(0,51 ± 0,08)

.020 ± .004
(0,51 ± 0,10)

.062 ± .003

(1,57 ± 0,08)

.171 ± .015
(4,34 ± 0,38)

Ø .025 ± .002

(0,64 ± 0,05)

GRAYHILL

91012

+.001- .002

Ø.125

.375±.015
(9,53±0,38)

.250±.015
(6,35±0,38)

DIMENSION "B"

.125±.015
(3,18±0,38)

1/4-28 UNF-2A
THREAD

.250±.015
(6,35±0,38)

TERMINAL
SEALANT
IN STYLE "T"

(3,18 + 0,03 -0,05)

.064 ± .005
(1,63 ± 0,13)

.020 ± .004
(0,51 ± 0,10)

.062 ± .004
(1,57 ± 0,10)

.032 ± .004
(0,81 ± 0,10)

.064 ± .005
(1,63 ± 0,13)

.016 ± .004
(0,41 ± 0,10)

.046 ± .004
(1,17 ± 0,10)

.021 ± .004
(0,53 ± 0,10)

GRAYHILL

91012

Ø.125 + .001 - .002
(3,18 + 0,03 - 0,05)

.375±.015
(9,53±0,38)

.250±.015
(6,35±0,38)

1/4-28 UNF-2A
THREAD

.250±.015
(6,35±0,38)

TERMINAL
SEALANT
IN STYLE "T"

.658±.015
(16,71±0,38)

.153±.015
(3,89±0,38)

.234±.015
(5,94±0,38)

SERIES 50 SERIES 51

0.5" Diameter, 200mA,
.698" Behind Panel

FEATURES

•OptionalCompleteSealfor

PC Board Assembly and Cleaning

•Small1/2"Diameter

•Choiceof22.5°,30°,36°,45°,60°

and 90° Angles of Throw

•Upto4Poleson1Deck

•Upto16PositionsPerSwitch

•PCorSolderLugTermination

•PositiveShaftGroundingfor

EMI/RFI Shielding

DIMENSIONS in inches (and millimeters)

PC Mount Style

Side View

All others as shown at left

Rotary Switches

Angle of Angle Angle of Angle
Throw A Throw A

22.5° 101.25° 45° 112.5°
30° 105° 60° 120°
36° 108° 90° 135°

Solder Lug Style

PC TERMINAL DETAIL

Grayhill part number and date code
marked on label. Customer part
number marked on request. Military
part number marked when required.

Dimension Series 50 Series 51

.500 ± .015 .562 ± .015

D

(12,70 ± 0,38) (14,27 ± 0,38)

Front view same as
PC Mount style.

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com

All angles of throw, except 22.5°

Dimension Style T All Others All 22.5°

.576 ± .015 .537 ± .015 .537 ± .015

B

(14,63 ± 0,38) (13,64 ± 0,38) (13,64 ± 0,38)

SOLDER LUG TERMINAL DETAIL

All angles of throw, except 22.5°

SOLDER LUG TERMINAL DETAIL 22.5°

PC COMMON DETAIL

All angles of throw, except 22.5°

Single Deck Rotary Switches

PC MOUNT

.500 ± .015
(12,7 ± 0,13)
DIA. CIRCLE
OF CENTERS

.156 ± .015
(3,96 ± 0,13)

LOCATION
OF COMMONS
2 POLES

COMMON TERMINAL
(1 POLE)

11.25˚

22.5˚

POS. 1

DIM. A ±
.005 (0,13)

POLE 1

POS. 1

THREE POLES
Dimension A, diameter circle of common centers,
is .175 (4,45) for Solder Lug and .232 (5,89) for PC.

7

8

9

10

14

15

16

13

11

12

1

2

3

4

5

6

C2

C1

7

8

9

10

11

12

1

2

3

4

5

6

7

8

9

10

11

12

1

2

34

5

6

C2

C1

7

8

9

10

11

12

1

2

34

5

6

C3

C2

C1

7

8

9

10

11

12

1

2

34

5

6

C3

C4

C2

C1

6

7

8

9

10

1

2

3

4

5

C2

C1

6

7

8

9

10

1

2

3

4

5

5

6

7

8

1

2

3

4

5

6

7

8

1

2

3

4

C2

C1

1

2

3

4

5

6

1

2

3

4

5

6

C2

C1

3

4

1

2

3

4

1

2

C2

C1

7

8

9

10

14

15

16

13

11

12

1

2

3

4

5

6

COMMON TERMINAL
(1 POLE)

SOLDER LUG

.382 ± .015 (9,70 ± 0,13)
DIAMETER CIRCLE OF
TERMINAL CENTERS

.156 ± .015
(3,96 ± 0,13)

LOCATION
OF COMMONS
2 POLES

11.25˚

22.5˚

POS. 1

COMMON TERMINAL (1 POLE)

.382 ± .005 (9,70 ± 0,13)
DIAMETER CIRCLE OF
TERMINAL CENTERS

.156 ± .005 (3,96 ± 0,13)

LOCATION OF COMMONS
2 POLES

30˚

15˚

POS. 1

18˚

36˚

.320 ± .015 (8,13 ± 0,38) DIAMETER
CIRCLE OF TERMINAL CENTERS

LOCATION OF COMMONS
2 POLES

COMMON TERMINAL (1 POLE)

POS. 1

.125 ± .015
(3,18 ± 0,38)

45˚

22.5˚

.320 ± .015 (8,13 ± 0,38) DIAMETER
CIRCLE OF TERMINAL CENTERS

LOCATION OF COMMONS
2 POLES

COMMON TERMINAL (1 POLE)

POS. 1

.125 ± .015
(3,18 ± 0,38)

60˚

30˚

LOCATION OF COMMONS
2 POLES

POS. 1

.125 ± .015
(3,18 ± 0,38)

COMMON TERMINAL (1 POLE)

.320 ± .015 (8,13 ± 0,38) DIAMETER
CIRCLE OF TERMINAL CENTERS

45˚

90˚

LOCATION OF COMMONS
2 POLES

POS. 1

.125 ± .015
(3,18 ± 0,38)

COMMON TERMINAL (1 POLE)

.320 ± .015 (8,13 ± 0,38)
DIAMETER CIRCLE OF
TERMINAL CENTERS

.175 ± .005
(4,45 ± 0,13)
DIAMETER
CIRCLE OF
COMMON
CENTERS

FOUR POLES

POS. 1

POLE 1

CIRCUIT DIAGRAMS AND REAR VIEWS: Solder Lug and PC Mount

Rear View

Circuit as Viewed From Shaft End

TWO POLESONE POLE

ONE POLE

THREE POLES

TWO POLES

FOUR POLES

22.5° Angle
of Throw

30° Angle
of Throw

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com

ONE POLE

ONE POLE

ONE POLE

Rotary Switches

36° Angle
of Throw

TWO POLESONE POLE

45° Angle
of Throw

TWO POLES

60° Angle
of Throw

TWO POLES

90° Angle
of Throw

TWO POLES

SPECIFICATIONS

POS. 1

CIRCLE SHOWING

DIMENSIONS OF

HOLE TO BE CUT

IN PANEL.

POS. 1

POS. 1

Ø0.254

Ø0.280

Ø0.380

0.208

0.240

0.350

1/8"Shaft

"E" Style

"K" Style

3/8-32 UNEF-2A

THREAD

.250
±.015

.375
±.015

+.001

-.002

.250

.250
±.015

.340
±.005

.219
±.004

Single Deck Rotary Switches

Military Qualification

The dimensions for qualified switches are
the same as those indicated in the drawings
of standard switches. Switches with standard
variations, such as shaft and bushing length,
which do not affect switch performance, can be
marked as qualified product. Contact Grayhill
for complete information on variations.

36°, 45°, 60°, 90° (Series 50): The C and M
style switches are qualified to MIL-S-3786/20.
They include the following:
Solder lug or PC terminals
With or without panel seal
Series 50 qualified switches may be ordered
by the ‘M’ number or by the Grayhill part
number.
30° (Series 51): The C and M style switches
are qualified to MIL-S-3786/35. They include
the following:
Solder lug or PC terminals
With or without panel seal
Series 51 qualified switches may be ordered
by the ‘M’ number or by the Grayhill part
number.

SPECIFICATIONS: Other

Electrical Ratings

Life Expectancy: With the limiting criteria stated

here, the Series 50 and 51 with non-shorting
contacts will switch the following loads at
atmospheric and reduced pressures for 25,000
cycles of operations. One cycle is 360° rotation
clockwise and 360° return.

At 85°C, atmospheric pressure
200 mA, 28 Vdc resistive
150 mA, 115 Vac resistive
30 mA, 28 Vdc inductive
100 mA, 28 Vdc lamp load
75 mA, 220 Vac lamp load

At 25°C, reduced pressure (70,000 feet)
200 mA, 28 Vdc resistive
150 mA, 115 Vac resistive
75 mA, 220 Vac resistive
Contact Resistance: 20 milliohms maximum,
(10 milliohms initially).

Insulation Resistance: 1,000 Mohms
minimum between mutually insulated parts.
Voltage Breakdown: 600 Vac minimum
between mutually insulated parts at standard
atmospheric pressure.
Life Expectancy: Listed for the voltage source
and make and break current levels. Contact
Grayhill for more information if any of the
following is true: the life limiting criteria are
more critical than those listed; longer operation
is required; a larger make and break current is
required; the operating environment includes
elevated temperatures or reduced pressures.
Contact Carry Rating: Switch will carry
6 amperes continuously with a maximum
contact temperature rise of 20°C.

Rotary Switches

Additional Characteristics

Contact Type and Forces: Shorting or non-

shorting wiping contacts with over 80 grams
of contact force.
Shaft Flat Orientation: Flat op posite
contacting position of pole number one (see
circuit diagrams).
Terminals: Switches have the full circle of
terminals, regardless of number of active
position.

Stop Strength: 7.5 pound-inches minimum
Rotational Torque: 8–24 ounce-inches,

depending on the number of poles.

PROCESS SEALED–Style T

Switch can be mounted on PC board with other
components and subjected to wave soldering
and conventional board cleaning techniques. No
secondary wiring or soldering is necessary.

Bushing is o-ring sealed; epoxy potting seals the
terminals and the rear of the switch. Designed
for PC assembly, this sealing technique can also
be applied to solder lug terminal switches. A
bushing to panel seal can also be added to the
process sealed versions. Military qualified ver­sions are available, see ordering information.

Materials and Finishes

Switch Base: Thermoset
Detent Rotor: Nylon
Shaft, Stop Blades, Stop Arm, Thrust washer,
and Retaining Ring: Stainless steel
Detent Balls: Steel, nickel-plated
Bushing:Zinc,tin-zincplated
Detent and Contact Springs: Stainless steel
Common Ring: Brass, gold-plated over silver

plate.
Terminals: Brass, gold-plated over silver plate
and nickel plate

1/4" SHAFT: Style K

Rotor Contact: Precious metal alloy, gold-

plated

Panel Seal: Silicone rubber
Shaft Seal: Fluorosilicone
Mounting Nuts:Brass,tin-zincplated
Mounting Hardware: One mounting nut .089"

thick by .375" across flats and one internal tooth
lockwasher are supplied with the switch.
Maximum Mounting Torque: 15in-lbs

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com