Single Deck Rotary Switches
FEATURES
• Positive Detent Provides Operator
Feedback
• Stainless Steel or Plastic Shaft
Option
SERIES 24
1" Diameter, 1 Amp,
.580" Behind Panel
• Unsurpassed Performance in
Numerous Applications
DIMENSIONS In inches (and millimeters)
Solder Lug
PC Mountable
Circuit Diagram
.312 .020
Solder Lug and PC Mount
.250 .020
(7,93 0,51)
(Switch is viewed from shaft end.)
Note: Common Terminal is
located above Base Terminal 10.
.109 .015
(2,77 0,38)
(6,35 0,51)
.578 .030
(14,68 0,76)
.250 .020
(6,35 0,51)
C
L
8
2
OF
7
.250 + .001/ – .002
(6,35 + 0,03/ – 0,05)
DIA.
BUSHING
KEYWAY
9
6
4
APPROX.
1.015 .015
(25,78 0,38)
DIA.
.750 (19,05) DIA. OVER
TERMINAL ENDS AT
INSERTION END
5
C
1
10
.531 .020
(13,49 0,51)
1
BUSHING KEYWAY
3
.066 .002 (1,68 0,05) WIDE
.036 .005 (0,91 0,13) DEEP
FROM THE .375 (9,53) DIAMETER
ONE POLE
3/8-32UNEF-2A
THREAD
Terminal Location (PC Mount)
Typical Terminal Detail (PC
Mount)
.363 (9,22)
TYP.
.294 (7,47)
TYP.
.347 (8,81)
TYP.
.564 .020
(14,33 0,51)
BASE TERMINAL
.020 .002
(0,51 0,05)
COMMON TERMINAL
.016 .002
.525
(13,34)
TYP.
.187 .005
(4,75 0,13)
.937 .020
(23,80 0,51)
DIA.
COMMON
36° 5°
(0,41 0,05)
.213
(5,41)
TYP.
.050 .002
(1,27 0,05)
36° TYP.
REF.
.096 .003
(2,44 0,08)
.113 (2,87)
TYP.
.219 .005
(5,56 0,13)
Grayhill part number and date code marked on label. Customer part number marked on request.
SPECIFICATIONS
Electrical Rating
STANDARD OPTIONS
Special Terminals
Rated: To make and break the following loads: Retaining Rings, Stop Arms, and Thrust RFI Grounding
1 amp at 115 Vac, resistive; 0.5 amp at 220 Washers: Stainless steel
Vac resistive; 1/4 amp, 115 Vac inductive; 1/50 Detent Balls: Steel, nickel-plated
amp, 115 Vdc inductive; 1/10 amp, 6 to 28 Vdc Shafts: Stainless steel, or plastic
inductive; 1/10 amp, 115 Vdc resistive; 1 amp, Detent: Opposing spring and ball in a hill and
6 to 28 Vdc resistive; to carry 10 amps continu- valley raceway.
Not available through distributors.
ORDERING INFORMATION
Switches are single deck, one pole switches of
2 to 10 positions. They have plastic or steel
shaft, with solder lug or PC terminals, with either
shorting or non-shorting contacts (plastic shaft
PC mount in non-shorting only). Ten position
switches have continuous rotation; fixed stop
switch with a metal shaft is available by special
order. Base part numbers are as follows:
Lug style, steel shaft: 24001-X*
ously.
Detent Springs: Tinned music wire
Contact Resistance: 10 milliohms initial. Af- Terminals(exceptcommon):Brass,tinplated.
ter 25,000 cycles of operation 20 milliohms Rotor Contact: Steel shaft version—phosphor
maximum.
bronze, silver-plated .0003" minimum. Plastic
Insulation Resistance: 50,000 Mohms shaft version—silver alloy.
minimum initially
Stator (Base) Contact: Brass, silver-plated
Voltage Breakdown: 1,000 Vac, (500 Vac, or .0003" minimum
better after most environmental tests).
Common Plate, including Solder Lug or PC
Lug style, plastic shaft: 24B36-01-1-X*
PC style, steel shaft: 24878-X*
PC style, plastic shaft: 24P36-01-1-X*
Life Expectancy: 100,000 mechanical cycles Tab: Brass, silver-plated .0003" minimum
of operation normally. NOTE: Actual life is Rotor Mounting Plate: Nylon fabric-based
determined by a number of factors, including laminated phenolic per MIL-T-15047
electrical loading, rate of rotation, and environ- Mounting Nut: Brass, tin/zinc-plated or
ment, as well as maximum contact resistance, stainless steel.
The X is replaced with the number of positions
required (02, 03, etc.) Complete the part num-
ber by adding N for non-shorting contacts or S
for shorting contacts.
minimum insulation resistance, and minimum
voltage breakdown required at the end of life.
Additional Characteristics
Stop Strength: 12 in-lbs
Materials and Finishes
Rotational Torque: 12 in-ozs
Switch Base: Melamine per (MIL-M-14) Shaft Flat Orientation: Opposite point of con-
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
ASTM-D-5948
tact (See circuit diagram.)
Cover, Stop Washers, Bushing: Brass, tin/ Environmental: These switches have passed
zinc-plated
the following environmental testing: Altitude
and temperature, 100 hour salt spray; Vibration
10 to 500 cps; Shock 30-G; Humidity; Fungus.
PC Mount: PC Switches are furnished with 10
base terminals for mounting purposes.
Contacts: Both shorting and non-shorting
wiping contacts have over 300 grams
contact force.
Rotary
17
Grayhill, Inc.
•
561 Hillgrove Avenue
•
LaGrange, Illinois 60525-5997
•
USA
•
Phone: 708-354-1040
•
Fax: 708-354-2820
•
www.grayhill.com