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
DIMENSIONS
In inches (and millimeters)
PC Mount Style
A
.500
Ø
± .015
(12,70
± 0,25)
POS. 1
.250 ± .015
(6,35 ± 0,38)
.375 ± .015
(9,53 ± 0,38)
.377
± .020
(9,58
± 0,51)
PC TERMINAL DETAIL
.110 ± .015
(2,79 ± 0,38)
.110
± .015
(2,79
± 0,38)
.250 ± .015
(6,35 ± 0,38)
Ø .125 ± .002
(3,18 ± 0,06)
GRAYHILL
2 1 10 9
.203 ± .003
(5,16 ± 0,08)
ACROSS
BUSHING
FLATS
.016 ± .004
(0,4 ± 0,10)
.016 ± .004 SQ.
(0,4 ± 0,10)
FOR REAR
VIEWS, SEE
FOLLOWING
PAGE.
.046 ± .004
(1,2 ± 0,10)
PC COMMON
.110 ± .015
(2,79 ± 0,38)
1/4-28 UNEF-2A
THREAD
ANGLE OF
THROW
Ø .025 ± .002
(0,64 ± 0,05)
ANGLE
A
30°
36°
Rotary Switches
.094 ± .010
(2,39 ± 0,25)
105°
108°
Grayhill part number and date code marked on label.
Customer part number marked on request.
Solder Lug Style
SOLDER LUG TERMINAL DETAIL
.203 ± .003
(5,16 ± 0,08)
ACROSS
BUSHING
FLATS
.375 ± .015
(9,53 ± 0,38)
Ø .125 ± .002
(3,18 ± 0,06)
.094 ± .010
(2,39 ± 0,25)
30°
36°
FOR REAR
VIEWS, SEE
FOLLOWING
PAGE.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
.016 ± .004
(0,41 ± 0,10)
.020 ± .004
(0,51 ± 0,10)
.046 ± .004
(1,17 ± 0,10)
SOLDER LUG COMMON
1/4-28 UNF-2A
THREAD
ANGLE
A
105°
108°
.063 ± .005
(1,60 ± 0,13)
.125 ± .015
(3,18 ± 0,38)
GRAYHILL
2 1 10 9
POS. 1
ANGLE OF
THROW
.480 ± .020
(12,19 ± 0,51)
.250 ± .015
(6,35 ± 0,38)
A
.500
Ø
± .015
(12,70
± 0,38)
.250 ± .015
(6,35 ± 0,38)
.125 ± .015
(3,18 ± 0,38)
Ø .062 ± .002
(1,58 ± 0,51)
Grayhill part number and date code marked on label.
Customer part number marked on request.
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
J-22
Single Deck Rotary Switches
CIRCUIT DIAGRAMS AND REAR VIEWS: PC Mountable AND Solder Lug Terminals
Circuit as Viewed From Shaft End
Rear View
.366 ± .015
(9,30 ± 0,38)
DIA. CIRCLE
OF CENTERS
.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
15°
POS. 1
30° TYP.
9
.190 ± .015 (4,83 ± 0,38)
DIA. CIRCLE OF CENTERS
(PC MOUNT AND
SOLDER LUG)
9
12
6
1
COMMON LOCATION
FOR 1 POLE SWITCH
9
1
8
POS. 1
A
Solder Lug
Terminals
.184 ± .015
(4,67 ± 0,38)
.126 ± .015
(3,20 ± 0,38)
3
7
1
2
3
PC Mount
Terminals
4
FOUR POLES
10
4
36° TYP.
2
8
5
ONE POLE
1
C1
5
9
6
DIMENSION A
DIA. CIRCLE OF CENTERS
C2
3
7
12
C4
6
TWO POLES
.340 ± .015
(8,64 ± 0,38) DIA.
CIRCLE OF CENTERS
11
C3
7
2
4
10
8
12
C1
5
COMMON LOCATION
FOR 1 POLE SWITCH
3
4
10
C2
6
Dimension
30° Angle
of Throw
2
5
11
7
COMMON LOCATION
FOR 2 POLE SWITCH
11
7
ONE POLE
8
18°
10
8
9
10
C2
6
1
C1
5
4
36° Angle
of Throw
2
3
TWO POLES
Materials and Finishes
Electrical Ratings
Chart shown for non-shorting (break before make)
contacts, resistive load.
CURRENT - MILLIAMPS
Rotary Switches
SPECIFICATIONS
300
200
100
Additional Characteristics
0
0
10
20
30
CYCLES x 1000
115 Vac 0r 30 Vdc
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 loadlife 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
J-23
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.
Contact Type and Forces: Shorting or nonshorting 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 mNm), depending on the number of poles.
Bushing Mounting: Required for switches with
stops, and recommended for switches without
stops.
Meets MIL-S-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.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
Housing: Zinc die cast, zinc-plated with chromate
treatment.
Mounting Nut: Brass, zinc-plated with chromate
treatment.
Lockwasher: Spring steel, zinc-plated with
chromate treatment.
Panel Seal: Silicone rubber
Shaft and Stop Arm: Zinc die cast, zinc-plated
with chromate treatment.
Retaining Ring: 302 Stainless steel, passivated
Shaft Seal: Silicone rubber
Stop Pins: 303 Stainless steel, passivated
Detent Rotor: Molded thermoplastic
Detent Spring: Tinned music wire
Detent Balls: Steel, nickel-plated
Contact Spring: Stainless steel, passivated
Rotor Contact: Brass, silver over nickel plate
Common Ring: Brass, gold over silver over
nickel plate
Terminals: Brass, gold over silver over nickel
plate
Switch Base: Molded thermoset plastic
Mounting Hardware: One mounting nut .089"
thick by .375" across flats and one internal tooth
lockwasher are supplied with the switch.
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 an O-ring 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.
SEAL
Shaft and
Panel Seal
SCREWDRIVER SLOTTED SHAFT: Option
.125 ± .015
(3,18 ± 0,38)
.050 ± .005
(1,27 ± 0,13)
.032 ± .005
(0,81 ± 0,13)
A
Series 56 rotary switches are
available with a screwdriver
slotted shaft with dimensions
as shown. Available in the
styles, angles of throw and pole/
positions combinations shown
in the choice and limitations
chart.
Screwdriver
Slotted Shaft
ADJUSTABLE STOP SWITCHES
Adjustable
Stop
desired to limit the shaft rotation. All dimensions
are identical to the fixed stop switch counterpart.
ACCESSORY: Non-Turn Washer
In Inches (and millimeters)
ADJUSTABLE
STOP PINS
ADJUSTABLE
STOP PINS
REMOVABLE
STICKER FOR
ADJUSTMENT
OF STOPS
REMOVABLE
SEAL WASHER
FOR ADJUSTMENT
OF STOPS
.400
± .005
DIA.
(10,16
± 0,13)
.025
± .001
(0,64
± 0,03)
90° ± 1°
.250 ± .003
(6,35 ± 0,08)
CL
SUGGESTED ADJUSTABLE STOP SUBSTITUTION GUIDE
Fixed Stop
Style
56A
56S
56P
56SP
Adjustable Stop
Style Equivalent
Fixed Stop
Style
56D
56SD
56DP
56SDP
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
56B
56BS
56BP
56BSP
Adjustable Stop
Style Equivalent
56BD
56BSD
56BDP
56BSDP
.060 ± .001
(1,52 ± 0,25)
.015
(0,38)
RADIUS
MAX.
.125
± .005
(3,16
± 0,13)
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.
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
J-24
Rotary Switches
Two stop pins and an adhesive backed sticker
or seal washer are provided. Sticker is
temporarily removed to locate stop pins as
Single Deck Rotary Switches
CHOICES AND LIMITATIONS: Series 56
A = Standard, 1/8" Shaft
B = Screwdriver Slot Shaft
D = Adjustable Stop (Adj. Stop)
Style
Designation
1
Solder Lug
Terminals
A
X
S
X
P = PC Mount Terminals
S = Shaft/Panel Seal (S/P Seal)
FEATURES
PC Mount Shaft/Panel
Seal
Terminals
X
SP
X
X
SD
X
Angle
Of
Throw
Number
Of
Poles
Number Of
Positions
Per Pole
Shorting Or
Non-Shorting
Contacts
30°
1
2
4
02 thru 12
02 thru 06
02 or 03
N or S
N or S
N or S
36°
1
2
02 thru 10
02 thru 05
N or S
N or S
B
X
P
D
Screwdriver
Adjustable Slotted Shaft
Stops1
Equivalent
BS
BP
X
BSP
X
DP
X
SDP
X
X
X
BD
X
BSD
X
BDP
X
BSDP
Adjustable stop versions allow selection of 2 positions to the maximum number of positions per pole.
ACCESSORIES
ORDERING INFORMATION
Control knobs available, see page I-57.
Series
Style: Letters from Choices Chart
Angle of Throw: 30 or 36°
STANDARD OPTIONS
Rotary Switches
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.
J-25
56A36–01–1–10N–F
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
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 position 1 and the last position. Leave blank if not applicable.
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
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com