Grayhill Single Deck Rotary Switches 24 Series User Manual download pdf

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Rotary Switches

Single Deck 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 induc-

tive; 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 deter-

mined 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: Melamine 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 part number and date code marked on label. Customer part number marked on request.

Typical Terminal Detail (PC

Mount)

Terminal Location (PC Mount)

Solder Lug PC Mountable

DIMENSIONS in inches (and millimeters)

.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)

Circuit Diagram

Solder Lug and PC Mount

(Switch is viewed from shaft end.)

Note: Common Terminal is

located above Base Terminal 10.

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)

SERIES 24

1" Diameter, 1 Amp,

.580" Behind Panel

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.

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.

FEATURES

•PositiveDetentProvides

Operator Feedback

•StainlessSteelorPlastic

Shaft Option

•UnsurpassedPerformance

in Numerous Applications

BUSHING

KEYWAY

ONE POLE

Summary of Contents

Page 1 - SERIES 24

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayh

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Grayhill Single Deck Rotary Switches 24 Series User Manual

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