Single Deck Rotary Switches
SERIES 56
0.5" Diameter, 200mA,
.355" Behind Panel
FEATURES
• Requires Minimum Distance Behind
the Panel
• Adjustable Stop Types Provide
Prototypes Immediately
• Industrial Quality, Economically
Priced
• RoHS Compliant
DIMENSIONS
in inches (and millimeters)
PC Mount Style
.250 ± .015
(6,35 ± 0,38)
.375 ± .015
(9,53 ± 0,38)
.250 ± .015
(6,35 ± 0,38)
.377
± .020
(9,58
± 0,51)
.110
± .015
(2,79
± 0,38)
FOR REAR
VIEWS, SEE
FOLLOWING
PAGE.
PC TERMINAL DETAIL
.203 ± .003
(5,16 ± 0,08)
ACROSS
BUSHING
FLATS
A
.500
Ø
± .015
(12,70
± 0,25)
.110 ± .015
(2,79 ± 0,38)
.016 ± .004
(0,4 ± 0,10)
POS. 1
Ø .125 ± .002
(3,18 ± 0,06)
GRAYHILL
2 1 10 9
.016 ± .004 SQ.
(0,4 ± 0,10)
.046 ± .004
(1,2 ± 0,10)
PC COMMON
.110 ± .015
(2,79 ± 0,38)
1/4-28 UNF-2A
THREAD
.500
Ø
± .015
(12,70
± 0,38)
GRAYHILL
2 1 10 9
Rotary Switches
.094 ± .010
(2,39 ± 0,25)
ANGLE OF ANGLE
THROW
A
30°
36°
105°
108°
Ø .025 ± .002
(0,64 ± 0,05)
Grayhill part number and date code marked on label.
Customer part number marked on request.
Solder Lug Style
.203 ± .003
(5,16 ± 0,08)
ACROSS
BUSHING
FLATS
A
.250 ± .015
(6,35 ± 0,38)
.375 ± .015
(9,53 ± 0,38)
.250 ± .015
(6,35 ± 0,38)
.480 ± .020
(12,19 ± 0,51)
.125 ± .015
(3,18 ± 0,38)
FOR REAR
VIEWS, SEE
FOLLOWING
PAGE.
SOLDER LUG TERMINAL DETAIL
.063 ± .005
(1,60 ± 0,13)
.016 ± .004
(0,41 ± 0,10)
.020 ± .004
(0,51 ± 0,10)
.046 ± .004
(1,17 ± 0,10)
POS. 1
Ø .125 ± .002
(3,18 ± 0,06)
SOLDER LUG COMMON
.094 ± .010
(2,39 ± 0,25)
ANGLE OF
THROW
30°
36°
ANGLE
A
105°
108°
1/4-28 UNF-2A
THREAD
.125 ± .015
(3,18 ± 0,38)
Grayhill part number and date code marked on label.
Customer part number marked on request.
Ø .062 ± .002
(1,58 ± 0,51)
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
CIRCUIT DIAGRAMS AND REAR VIEWS: PC Mountable AND Solder Lug Terminals
Rear View
.366 ± .015
(9,30 ± 0,38)
DIA. CIRCLE
OF CENTERS
.190 ± .015 (4,83 ± 0,38)
DIA. CIRCLE OF CENTERS
15°
(PC MOUNT AND
POS. 1
SOLDER LUG)
30° TYP.
COMMON LOCATION
FOR 2 POLE SWITCH
Circuit as Viewed From Shaft End
.366 ± .015
(9,30 ± 0,38)
DIA. CIRCLE
OF CENTERS
.190 ± .015 (4,83 ± 0,38)
DIA. CIRCLE OF CENTERS
(PC MOUNT AND
SOLDER LUG)
8
7
6
5
9
10
11
12
1
15°
POS. 1
30° TYP.
30° Angle
of Throw
4
3
2
ONE POLE
8
COMMON LOCATION
FOR 1 POLE SWITCH
9
10
C2
11
12
1
7
6
8
9
C3
C2
10
C4
C1
11
12
1
2
7
6
5
C1
4
3
2
5
4
3
.340 ± .015
(8,64 ± 0,38) DIA.
CIRCLE OF CENTERS
DIMENSION A
DIA. CIRCLE OF CENTERS
TWO POLES
FOUR POLES
7
6
5
4
8
9
10
1
6
5
7
8
C2
C1
9
10
1
POS. 1
18°
36° TYP.
36° Angle
of Throw
COMMON LOCATION
FOR 2 POLE SWITCH
COMMON LOCATION
FOR 1 POLE SWITCH
3
2
4
3
2
Dimension
A
PC Mount
Terminals
.184 ± .015
(4,67 ± 0,38)
Solder Lug
Terminals
.126 ± .015
(3,20 ± 0,38)
ONE POLE
TWO POLES
Rotary Switches
SPECIFICATIONS
Electrical Ratings
CURRENT - MILLIAMPS
Chart shown for non-shorting (break before make)
contacts, resistive load.
300
200
100
0
0
10
20
30
CYCLES x 1000
115 Vac 0r 30 Vdc
elevated temperatures or reduced pressures.
Contact Carry Rating:
Switch will carry 6
amperes continuously with a maximum
contact temperature rise of 20°C.
Materials and Finishes
Additional Characteristics
One cycle is 360° rotation clockwise and 360°
return. The data for the curve was measured at
sea level, 25°C and 68% relative humidity with
the life limiting criteria which follows.
Contact Resistance:
100 milliohms maximum,
(15 milliohms initially).
Insulation Resistance:
10,000 Mohms
minimum between mutually insulated parts
(50,000 Mohms initially).
Voltage Breakdown:
600 Vac minimum
between mutually insulated parts at standard
atmospheric pressure.
Life Expectancy:
As determined from the
load-life curve for the current to be switched.
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
Contact Type and Forces:
Shorting or non-
shorting wiping contacts with over 25 grams of
contact force.
Shaft Flat Orientation:
Flat opposite contacting
position of pole number one (see circuit
diagrams).
Terminals:
Switches have the full circle of
terminals, regardless of number of active
positions.
Stop Strength:
7.5 lb-in. minimum
Rotational Torque:
3.5 to 9 oz-in. (21-53
mN-m), depending on the number of poles.
Bushing Mounting:
Required for switches with
stops, and recommended for switches without
stops.
Meets MIL-DTL-3786 for:
High and medium shock; Vibration (10 to 2,000
Hz); Thermal shock (-65° to 85 ° C); Salt spray;
Explosion; Stop strength (7.5 in-lbs. minimum (.85
N-m); Terminal strength; Sealed styles withstand
water pressure of 15 PSI minimum (103 KPa)
without leakage.
Housing:
Zinc die cast. Tin Zinc or Sulfamate
Nickel Plated
Mounting Nut:
Brass. Tin Zinc or Sulfamate
Nickel Plated
Lockwasher:
Spring steel, zinc plated
Panel Seal:
Silicone rubber
Shaft and Stop Arm:
Machined, 303 Stainless
Steel, or Cold Formed, 430 Stainless Steel
Retaining Ring:
Stainless steel
Shaft Seal:
Fluorosilicone rubber
Stop Pins:
Stainless steel
Detent Rotor:
Molded thermoplastic
Detent Spring:
Music wire
Detent Balls:
Steel, nickel-plated
Contact Spring:
Stainless steel
Rotor Contact:
Brass or zinc alloy, silver over
nickel plate
Common Ring:
Brass, gold over silver over
nickel plate
Terminals:
Brass, gold over silver over nickel
plate
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
SHAFT AND PANEL SEAL: Style S
Panel is sealed by a flat rub-
ber seal washer at the base of
bushing. Shaft is sealed by an
O-ring inside the bushing. After
the switch is mounted, seals do
not alter the dimensions of the
unsealed style.
Shaft and
Panel Seal
SCREWDRIVER SLOTTED SHAFT: Option
Series 56 rotary switches are
available with a screwdriver
slotted shaft with dimensions as
shown. Available in the styles,
angles of throw and pole/posi-
tions combinations shown in
the choice and limitations chart.
Screwdriver
Slotted Shaft
ADJUSTABLE STOP SWITCHES
Two stop pins and an adhesive backed sticker or
seal washer are provided. Sticker is temporarily
removed to locate stop pins as desired to limit
the shaft rotation. All dimensions are identical
to the fixed stop switch counterpart.
Adjustable
Stop
Rotary Switches
ACCESSORY: Non-Turn Washer
In Inches (and millimeters)
.400
± .005
DIA.
(10,16
± 0,13)
.250 ± .003
(6,35 ± 0,08)
.025
± .001
(0,64
± 0,03)
90° ± 1°
.015
(0,38)
RADIUS
MAX.
.125
± .005
(3,16
± 0,13)
ADJUSTABLE
STOP PINS
REMOVABLE
STICKER FOR
ADJUSTMENT
OF STOPS
ADJUSTABLE
STOP PINS
REMOVABLE
SEAL WASHER
FOR ADJUSTMENT
OF STOPS
.060 ± .001
(1,52 ± 0,25)
SUGGESTED ADJUSTABLE STOP SUBSTITUTION GUIDE
Fixed Stop
Style
56A
56S
56P
56SP
Adjustable Stop
Style Equivalent
56D
56SD
56DP
56SDP
Fixed Stop
Style
56B
56BS
56BP
56BSP
Adjustable Stop
Style Equivalent
56BD
56BSD
56BDP
56BSDP
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.
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
CHOICES AND LIMITATIONS: Series 56
A = Standard, 1/8" Shaft
B = Screwdriver Slot Shaft
D = Adjustable Stop (Adj. Stop)
P = PC Mount Terminals
S = Shaft/Panel Seal (S/P Seal)
Style
Designation
A
S
P
SP
X
SD
DP
SDP
1
Solder Lug
Terminals
X
X
FEATURES
PC Mount Shaft/Panel
Seal
Terminals
X
X
X
X
X
Adjustable
Stops
1
Screwdriver
Slotted Shaft
Equivalent
B
BS
BP
BSPD
Angle
Number
Of
Of
Throw Poles
1
2
4
Number Of
Positions
Per Pole
02 thru 12
02 thru 06
02 or 03
Shorting Or
Non-Shorting
Contacts
N or S
N or S
N or S
30°
BD
X
X
X
BSD
BDP
BSDP
36°
1
2
02 thru 10
02 thru 05
N or S
N or S
X
X
X
X
X
Adjustable stop versions allow selection of 2 positions to the maximum number of positions per pole.
STANDARD OPTIONS
Available from your local Grayhill Distributor
For prices and discounts, contact a local Sales
Office, an authorized local Distributor, or Grayhill.
Not available thru Distributors when Intermixing
of shorting and non-shorting contacts. Contact
Grayhill.
ORDERING INFORMATION
Series
Style:
Letters from Choices Chart
Angle of Throw:
30 or 36°
56A36S–01–1–10N–F
Stop Arrangement:
The suffix C or F must be added to a one
pole per deck switch with the maximum number of positions to
indicate continuous rotation (C) or fixed stops (F) between posi-
tion 1 and the last position.
Type of Contacts:
N = Non-shorting, S = Shorting
Positions Per Pole:
02 as a minimum to the maximum
allowable for the angle of throw and number of poles per the
Choices Chart. Use the letters AJ in this location if adjustable
stop switch is to be ordered.
Poles per Deck:
Limited by angle of throw. See chart
Number of Decks:
01 only
Shafts:
S= Machined, Blank= Cold Formed
Rotary Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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