Grayhill Single Deck Rotary Switches 24 User Manual

Single Deck Rotary Switches

.937 ± .020

(23,80 ± 0,51)

DIA.

.219 ± .005
(5,56 ± 0,13)

36° ± 5°

.564 ± .020
(14,33 ± 0,51)

COMMON

APPROX.

.750 (19,05) DIA. OVER

TERMINAL ENDS AT

INSERTION END

.109 ± .015
(2,77 ± 0,38)

.531 ± .020

(13,49 ± 0,51)

.050 ± .002
(1,27 ± 0,05)

.096 ± .003
(2,44 ± 0,08)

BASE TERMINAL
.020 ± .002
(0,51 ± 0,05)
COMMON TERMINAL
.016 ± .002
(0,41 ± 0,05)

.187 ± .005
(4,75 ± 0,13)

36° TYP.

REF.

.113 (2,87)
TYP.

.213
(5,41)
TYP.

.347 (8,81)
TYP.

.363 (9,22)
TYP.

.525
(13,34)
TYP.

.294 (7,47)
TYP.

.250 + .001/ – .002
(6,35 + 0,03/ – 0,05)
DIA.

1.015 ± .015

(25,78 ± 0,38)

DIA.

TERMINAL 9 IN LINE

WITH KEYWAY

BUSHING KEYWAY
.066 ± .002 (1,68 ± 0,05) WIDE
.036 ± .005 (0,91 ± 0,13) DEEP
FROM THE .375 (9,53) DIAMETER

3/8-32UNEF-2A
THREAD

.578 ± .030
(14,68 ± 0,76).250 ± .020

(6,35 ± 0,51)

.250 ± .020
(6,35 ± 0,51)

.312 ± .020
(7,93 ± 0,51)

7

8

9

10

1

2

3

4

6

5

C
L

OF

BUSHING

KEYWAY

ONE POLE

C

1

SERIES 24

1" Diameter, 1 Amp,
.580" Behind Panel

FEATURES

•PositiveDetentProvides

Operator Feedback

•StainlessSteelorPlastic

Shaft Option

•UnsurpassedPerformance

in Numerous Applications

DIMENSIONS in inches (and millimeters)

Solder Lug PC Mountable

Typical Terminal Detail ( PC

Mount)

Circuit Diagram

Solder Lug and PC Mount
(Switch is viewed from shaft end.)
Note: Common Terminal is
located above Base Terminal 10.

Terminal Location (PC Mount)

Rotary Switches

SPECIFICATIONS

Electrical Rating

Rated: To make and break the following loads:

1 amp at 115 Vac, resistive; 0.5 amp at 220 Vac
resistive; 1/4 amp, 115 Vac inductive; 1/50 amp,
115 Vdc inductive; 1/10 amp, 6 to 28 Vdc induc­tive; 1/10 amp, 115 Vdc resistive; 1 amp, 6 to 28
Vdc resistive; to carry 10 amps continuously.
Contact Resistance: 10 milliohms initial.
After 25,000 cycles of operation 20 milliohms
maximum.
Insulation Resistance: 50,000 Mohms
minimum initially
Voltage Breakdown: 1,000 Vac, (500 Vac, or
better after most environmental tests).
Life Expectancy: 100,000 mechanical cycles
of operation normally. NOTE: Actual life is deter­mined by a number of factors, including electrical
loading, rate of rotation, and environment, as
well as maximum contact resistance, minimum
insulation resistance, and minimum voltage
breakdown required at the end of life.

Materials and Finishes

Switch Base: Mel amine per (MIL-M-14)

ASTM-D-5948
Cover, Stop Washers, Bushing: Brass, tin/

zinc-plated

Contacts: Both shorting and non-shorting
wiping contacts have over 300 grams contact
force.

Retaining Rings, Stop Arms, and Thrust
Washers: Stainless steel

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

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

STANDARD OPTIONS

Special Terminals
RFI Grounding

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*
Lug style, plastic shaft: 24B36-01-1-X*
PC style, steel shaft: 24878-X*
PC style, plastic shaft: 24P36-01-1-X*

The X is replaced with the number of positions
required (02, 03, etc.) Complete the part number
by adding N for non-shorting contacts or S for
shorting contacts.

Available from your local Grayhill
Distributor.

For prices and discounts, contact a local

SalesOfce,anauthorizedlocal

Distributor or Grayhill.

Detent Balls: Steel, nickel-plated
Shafts: Stainless steel, or plastic
Detent: Opposing spring and ball in a hill and

valley raceway.

Detent Springs: Tinned music wire
Terminals (except common): Brass, tin

plated.
Rotor Contact: Steel shaft version—phosphor

bronze, silver-plated .0003" minimum. Plastic

shaft version—silver alloy.
Stator (Base) Contact: Brass, silver-plated
.0003" minimum

Common Plate, including Solder Lug or PC
Tab: Brass, silver-plated .0003" minimum
Rotor Mounting Plate: Nylon fabric-based

laminated phenolic per MIL-T-15047
Mounting Nut:Brass,tin/zinc-platedorstain-
less steel.

Additional Characteristics

Stop Strength: 12 in-lbs
Rotational Torque:12in-ozs
Shaft Flat Orientation: Opposite point of contact

(See circuit diagram.)
Environmental: These switches have passed
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.