44HS30-02-1-12N 데이터 시트보기 (PDF) - Grayhill Inc

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44HS30-02-1-12N

Multi-Deck Rotary Switches

Grayhill Inc 

Multi-Deck Rotary Switches

Military Qualified

Single Shaft Switches

The military styles of the single shaft Series

42 and 44 rotary switches are qualified to MIL-

DTL-3786/4, specifically SR04-1. Qualification

includes two temperature ranges. Unsealed

styles M, MB, MG and MBG are qualified for -65

to 85°C. Unsealed styles H, HB, HG and HBG,

plus sealed styles HS, HBS, HGS and HBGS

are qualified for -65°C to 125°C. Qualification

includes low level switching and shaft grounding

as specified in MIL-DTL-3786. Qualification

includes 30°, 36°, 45°, 60° and 90° angles of throw

with solder lug terminals. The military styles are

dimensionally the same as the standard styles

with two exceptions. The location of the common

for the 3-pole switch differs (see circuit diagrams)

and the non-turn tab for styles HS, HBS, HGS

and HBGS differs per the Shaft and Panel Seal

description following.

Two Switches, Concentric Shafts

The M style of the concentric shaft Series 43

and 54 switches is qualified to MIL-DTL-3786/4,

specifically SR04-2. Unsealed switches are

qualified for -65°C to 85°C in 30°, 36°, 45°,

60° and 90° throws. The standard and military

styles of the concentric switches have the same

dimensions with the exception of the location of

the 3 pole common (see circuit diagrams). The

30° and 36° throws are described in the ordering

information. If the 45°, 60° and 90° throws are

required, they can be provided in Section A of

the Series 54 Rotary Switches; see Standard

Options, page J-9.

Add-A-Pot Switches

The military style of the add-a-pot Series 54

switch is qualified to MIL-DTL-3786/4, specifically

SR04-3. These unsealed switches are qualified

for -65°C to 85°C in 30°, 45°, 60° and 90° throws.

The dimensions of the military style add-a-pot

switches are not the same as the standard add-

a-pot switches; see drawings.

All Qualified Switches

Complete electrical ratings and characteristics

for all of these qualified switches are listed on

the following pages. Standard variations such

as terminals, shaft and/or bushing length etc.,

which do not affect performance, can be marked

as qualified product. Adjustable stops cannot

be qualified. Contact Grayhill for details about

variations.

Military qualified switches may be ordered by the

military M number listed in MIL-DTL-3786/4 or

by the Grayhill part number. They will be marked

to specifications.

Military Qualified Shaft and

Panel Seal:

Styles HS, HBS, HGS and HBGS

The shaft is sealed to the bushing by an internal

O-ring per MIL-P-5516B. The bushing is sealed

to the panel with a silicone rubber washer and

a stainless steel backing washer. The combined

uncompressed thickness is 0.055" (1,40). Since

this switch has a flat cover, a non-turn washer is

supplied (see Panel Seal Kit). If using it, mount

it in front of the panel.

Specifications:

Electrical Ratings

Standard Style

Rated: To make and break the following

loads:

115 Vac resistive

6-28 Vdc resistive

115 Vac inductive

115 Vdc inductive

6-28 Vdc inductive

115 Vdc resistive

Angle of Throw

30° or 36° 45° or 60° 90°

1 amp

5 amps 5 amps

1 amp

1 amp 2 amps

0.25 amp 2 amps 2 amps

0.02 amp

—

—

0.10 amp

—

—

0.10 amp

—

—

To carry 10 amps continuously.

Contact Resistance: 50 milliohms maximum

Insulation Resistance: 1,000 megaohms

minimum

Voltage Breakdown: 1,000 Vac initially (500

Vac or better after most environmental tests)

Life Expectancy: 100,000 mechanical cycles

of operation. Note: Actual life is determined

by a number of factors, including electrical

loading, rate of rotation and environment, as

well as maximum voltage breakdown required

at the end of life.

UL Recognition–

Styles UA, UD, UM, UP, US and USP

Grayhill styles A and M and their variations (D, P,

S and SP) of the Series 42, 43, 44 and 54 rotary

switches have been tested by Underwriters

Laboratories. The letter U in the style indicates

proper marking as required by Underwriters

Laboratories. These switches are recognized

under file number E35289.The UL rating for the

Series 42, 43, 44 and 54 is as follows:

Electrical Parameters: style UA = 1.0 ampere

at 125 Vac. Style UM = 1.0 ampere at 125 Vac

and also .5 ampere at 125 Vac, inductive load,

0.75 to 0.8 power factor.

Rating based on the following criteria:

Overload: 50 operations at 150% rated AC

load

Endurance: 6000 operations at the rated load

with 1000 Vac dielectric strength before and

after test

Temperature Rise: Not to exceed 30°C when

carrying rated AC load after test.

Note: all dimensional drawings for the standard

style Series 42, 43, 44 and 54 also apply to these

switches, with the exception that switches are

marked per specifications.

Electrical Ratings

Military Style

General Rating: This rating is based on standard

Grayhill tests of the Military style switch done at

ambient conditions. It is provided for comparison

to the Standard Style switch.

Charts shown for non-shorting contacts (break

before make)

7

6

5

VOLTAGE 115 VAC

4

RESISTIVE

3

2

1

0

0 10

25

50

CyCLES x 1,000

1.7

1.5

1.2

VOLTAGE 30 VDC

RESISTIVE

1.0

.75 INDUCTIVE

.50 (2.8 HENRIES)

.20

0

0 10

25

50

CyCLES x 1,000

Voltage and Load: As listed in the chart

One cycle is 360° rotation and a return through

all switch positions to the starting position.The

data for the curves was measured at sea level,

25°C and 68% relative humidity.

The Series 42, 43, 44 and 54, style M, H and

HS switches are made to meet requirements

of MIL-DTL-3786, style SR04. Diallyl phthalate

molded parts and the design of internal

switching elements provide exceptional

performance.

Curves shown are typical load-life curves for

Series 42, 43, 44 and 54, style M, H and HS

switches with 30° or 36° angles of throw. They

show the numbers of cycles of rotational life

expectancy for the types of loads shown.Thus,

with a 5 amp, 115 Vac resistive load, 10,000

cycles of life is expected. If the load is reduced

to 3 amps, life is increased to 25,000 cycles.The

larger angles of throw (45°, 60° or 90°) switch

larger currents for a like number of cycles.

Life limiting or failure criteria for these curves

are:

Contact Resistance: 50 milliohms

maximum

Insulation Resistance: 1,000 megaohms

minimum between mutually insulated parts

Voltage Breakdown: 1,000 Vac minimum

between mutually insulated parts. These

switches will carry 10 amps with maximum

contact temperature rise of 20°C. Life can

be predicted by Grayhill if less critical life

characteristics, elevated temperature or

reduced pressure is involved.

MIL-S-3786 Electrical Values

Military Style

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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