31.903.2 - EAO - Product.Network

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Human Machine Interfaces

EAO Product Information

Series 31

Switches and Indicators

Contents

06.2009

Description......................................................................................................3

Product Assembly ..........................................................................................4

Devices raised mounting ...............................................................................5

Accessories.....................................................................................................7

Technical Data...............................................................................................12

Typical Applications.....................................................................................15

Application guidelines..................................................................................17

Marking..........................................................................................................18

Drawings........................................................................................................19

Index...............................................................................................................27

Product Assembly

06.2009

Indicator round, raised mounting

01 Lens

2LED

3 Switch housing

4 Front plate

5 Fixing nut

Illuminated pushbutton rectangular, raised mounting

01 Lens

2LED

3 Switch housing

4 Front plate

5 Fixing nut

06.2009

Description

General notes

The series 31 illuminated pushbuttons are equipped with snap-action or

low-level switching elements.

Besides the standard contacts (gold-plated silver) silver contacts for

switching elements 2.8 mm plug-in terminals can be supplied on

request.

The front dimensions of these units are 18 x 24 mm, 18 x 18 mm or

18 mm dia.

In addition to a number of illuminated pushbuttons, the customer can

choose from a range of other units and accessories having the same

front and mounting dimensions: Indicators, Flashers, Buzzers, etc. (For

keylock switches see series 51 or 61.)

Mounting

All switch actuators are mounted from the front by pushing them through

the mounting hole in the front panel. They are then fixed from the back

with a fixing nut and the mounting tool Typ-Nr. 01-907. Max. tightening

torque 50 Ncm.

For switching elements with 2.8 mm plug-in terminals, we offer plug-in

bases, which when soldered to a PCB enable a plug-in connection to

the button. The rectangular actuators are provided with an anti-twisting

device.

Lenses

The flat or concave lenses, made of Polymethyl Methacrylate, are

available in various colours, as well as translucent or transparent.

Marking

For further information about engraving, hot stamping and film inserts

see part Marking.

Illumination

The T1 3/4 Midget Groove incandescent (filament) lamp (6 ... 48 V)

ensures perfect illumination of the lenses, which are supplied in various

colours.

T1 3/4 Midget Groove Single-LED (6, 12, 24, 28, 48 V) are also available

in blue, green, red, white or yellow.

Luminosity and wave length scattering caused by the technology used

in the LED manufacturing processes may lead to visual differences in

our products.

For supply voltages above 48 V, it is necessary to use a voltage

reduction element (external series resistor or transformer).

Position indication

The status of a maintained action switch can be determinded by the

position of the lens.

Specimen order

We reserve the right to modify technical data

All dimensions in mm

Product Information Indicator :

- Indicator actuator, 18 x 24 mm, soldering

terminal 31-040.005

Essential accessories :

- Lens plastic blue, transparent, flush,

18 x 24 mm 31-903.6

- Single-LED, T1 3/4 MG, 24 VAC/DC, blau 10-2J12.1066

Devices raised mounting

06.2009

Essential Accessories:

d Lens plastic page 7

d Single-LED page 10

Continuation see next page

Diode (1N 4007): D = Diode, - = without

Terminals: UT = Universal terminal, S = Soldering terminal, S1 = Soldering terminal (also pluggable 2.8 x 0.5 mm)

Component layout from page 19, Mounting dimensions from page 20, Technical drawing from page 20, Circuit drawing from page 22

Continuation see next page

Further information in the Technical Data and Typical Applications

Terminals: S1 = Soldering terminal (also pluggable 2.8 x 0.5 mm), S = Soldering terminal

Mounting dimensions from page 20, Technical drawing from page 20, Circuit drawing from page 22

Indicator actuator

Front protection

Diode (1N 4007)

Terminals

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr. Ø 18 mm

Typ-Nr.

Component layout

Mounting dimensions

Technical drawing

Circuit drawing

Indicator actuator IP 40 1 D UT 31-703.006 31-701.006 4 1 7 33 0.006

2 D UT 31-704.006 31-702.006 4 1 7 34 0.006

-S31-050.005 31-040.005 31-030.005 174 0.004

S1 31-050.002 31-040.002 31-030.002 173 0.004

UT 31-051.006 31-041.006 31-031.006 4173 0.005

Buzzer

Front protection

Front cap

Terminals

a 18 x 24 mm

Typ-Nr.

Mounting dimensions

Technical drawing

Circuit drawing

Buzzer

Operation voltage : 10 ... 26 VDC IP 40 Plastic black S1 31-801.002 1310.015

Operation voltage : 10 ... 55 VAC, 10 ... 75 VDC IP 40 Plastic black S 31-810.005 1320.015

Devices raised mounting

06.2009

Essential Accessories:

d Lens plastic page 7

d Single-LED page 10

Continuation see next page

Power rating: Low level switching element 42 V, 100 mA; Snap action switching element 250 V, 5 A

Switching system: LL = Low level switching element, SA = Snap-action switching element

Contacts: NC = Normally closed, NO = Normally open

Diode (1N 4007): - = without, D = Diode

Switching action: MA = Maintained action, M = Momentary action

Terminals: UT = Universal terminal, S = Soldering terminal, S1 = Soldering terminal (also pluggable 2.8 x 0.5 mm)

Component layout from page 19, Mounting dimensions from page 20, Technical drawing from page 20, Circuit drawing from page 22

Illuminated pushbutton actuator

Front protection

Switching system

Contacts

Diode (1N 4007)

Switching action

Terminals

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr. Ø 18 mm

Typ-Nr.

Component layout

Mounting dimensions

Technical drawing

Circuit drawing

Illuminated

pushbutton actuator IP 40 LL 1 NC - MA UT 31-486.036 31-466.036 31-476.036 418140.007

MUT31-456.036 31-426.036 31-436.036 418280.007

1 NC + 1 NO - MA UT 31-483.036 31-463.036 31-473.036 418170.007

MUT31-453.036 31-423.036 31-433.036 418310.007

1 NO - MA UT 31-485.036 31-465.036 31-475.036 418160.007

MUT31-455.036 31-425.036 31-435.036 418300.007

2 NC - MA UT 31-482.036 31-462.036 31-472.036 418150.007

MUT31-452.036 31-422.036 31-432.036 418290.007

2 NO - MA UT 31-481.036 31-461.036 31-471.036 418180.007

MUT31-451.036 31-421.036 31-431.036 418320.007

SA 1 NC + 1 NO 1 D MA UT 31-717.0292 31-713.0292 31-747.0292 418110.008

MUT31-709.0292 31-705.0292 31-743.0292 418250.008

2 D MA UT 31-718.0292 31-714.0292 31-748.0292 418120.008

MUT31-710.0292 31-706.0292 31-744.0292 418260.008

-MAS31-281.0252 31-261.0252 31-271.0252 1 8 13 0.006

S1 31-281.022 31-261.022 31-271.022 1 8 10 0.006

MS31-151.0252 31-121.0252 31-131.0252 1 8 27 0.006

S1 31-151.022 31-121.022 31-131.022 1 8 24 0.006

2 NC + 2 NO 1 D MA UT 31-719.0292 31-715.0292 31-749.0292 4 1 8 7 0.010

MUT31-711.0292 31-707.0292 31-745.0292 418210.010

2 D MA UT 31-720.0292 31-716.0292 31-750.0292 4 1 8 8 0.010

MUT31-712.0292 31-708.0292 31-746.0292 418220.010

-MAS31-282.0252 31-262.0252 31-272.0252 1 8 9 0.008

MS31-152.0252 31-122.0252 31-132.0252 1 8 23 0.008

3 NC + 3 NO - MA S 31-283.0252 31-263.0252 31-273.0252 1 8 6 0.010

MS31-153.0252 31-123.0252 31-133.0252 1 8 20 0.010

4 NC + 4 NO - MA S 31-284.0252 31-264.0252 31-274.0252 1 8 5 0.012

MS31-154.0252 31-124.0252 31-134.0252 1 8 19 0.012

06.2009

Accessories

Continuation see next page

Technical drawing from page 20

Front

Lens plastic

Lens

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr. Ø 18 mm

Typ-Nr. e

Lens plastic

concave, illuminative blue transparent 31-954.6 31-904.6 0.001

colourless transparent 31-954.7 31-904.7 0.001

green transparent 31-954.5 31-904.5 0.001

orange transparent 31-954.3 31-904.3 0.001

red transparent 31-954.2 31-904.2 0.001

yellow transparent 31-954.4 31-904.4 0.001

concave, non-illuminative black opaque 31-952.0 31-902.0 0.001

grey opaque 31-902.8 0.001

flush, illuminative blue transparent 31-953.6 31-903.6 31-933.6 0.001

colourless transparent 31-953.7 31-903.7 31-933.7 0.001

green transparent 31-953.5 31-903.5 31-933.5 0.001

orange transparent 31-953.3 31-903.3 31-933.3 0.001

red transparent 31-953.2 31-903.2 31-933.2 0.001

smoked transparent 31-953.1 31-903.1 31-933.1 0.001

yellow transparent 31-953.4 31-903.4 31-933.4 0.001

flush, illuminative

(not recommended for film insert) blue translucent 31-951.6 31-901.6 31-931.6 0.001

colourless transparent 31-955.7 31-905.7 31-935.7 0.001

green translucent 31-951.5 31-901.5 31-931.5 0.001

green transparent 31-955.5 31-905.5 31-935.5 0.001

orange translucent 31-951.3 31-901.3 31-931.3 0.001

red translucent 31-951.2 31-901.2 31-931.2 0.001

red transparent 31-955.2 31-905.2 31-935.2 0.001

white translucent 31-951.9 31-901.9 31-931.9 0.001

yellow translucent 31-951.4 31-901.4 31-931.4 0.001

yellow transparent 31-955.4 31-905.4 31-935.4 0.001

flush, non-illuminative black opaque 31-951.0 31-901.0 31-931.0 0.001

grey opaque 31-951.8 31-901.8 31-931.8 0.001

Protective cover

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr.

Technical drawing

Protective cover

hinged, transparent, with means for sealing 31-920 5 0.002

31-925 6 0.002

06.2009

Accessories

front protection IP 67

Continuation see next page

Mounting dimensions from page 20, Technical drawing from page 20

matt chromium-plated

Continuation see next page

Technical drawing from page 20

Continuation see next page

Mounting dimensions from page 20

Front protective cap

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr.

Mounting dimensions

Technical drawing

Front protective cap

two-part PVC 31-923 240.003

Silikon 31-924.2 240.003

Protective guard

Typ-Nr.

Technical drawing

Protective guard

broad sides bent upwards 01-927 2 0.011

narrow ends bent upwards 01-926 1 0.011

Blind plug

b 18 x 18 mm

Typ-Nr.

a 18 x 24 mm

Typ-Nr. Ø 18 mm

Typ-Nr.

Mounting dimensions

Blind plug Plastic black 01-948.0 01-947.0 01-949.0 1 0.001

06.2009

Accessories

Continuation see next page

PCB plug-in base Pins right-angle : With the extendable mounting the distance between plug-in base and PCB can be

varied up to 3 mm.

Terminals: P = PCB terminal

Component layout from page 19

Continuation see next page

Backside

PCB plug-in base

Terminals

Typ-Nr.

Component layout

PCB plug-in base

16.4 mm dia. x 9.8 mm for Low level switching element, Pins axial P31-940 2 0.002

17.8 x 12.9 mm x 9.8 mm for Snap-action switching element 2.8 mm, Pins axial P 31-942 3 0.002

17.9 x 17.9 x 8.4 mm for Lo w level switching element, Pins bent at right-angle P 31-941 1 0.004

Flat receptacle

Typ-Nr. e

Flat receptacle

2.0 x 0.5 mm for Universal terminal 31-945 0.001

2.8 x 0.5 mm for Plug-in terminal 31-946 0.001

Insulation sleeve

Typ-Nr. e

Insulation sleeve

Cover Plug-in terminals for snap-action switching element 2.8 mm 01-928 0.001

for Flat receptacle 31-945 31-928 0.001

for Flat receptacle 31-946 31-929 0.001

Terminal cover

Typ-Nr. e

Terminal cover 01-929 0.010

06.2009

Accessories

Continuation see next page

Note:

AC operation through halve-wave rectifier possible, slight flicker ing can occure.

Illumination

Filament lamp

Socket Operating voltage/-current Typ-Nr. e

Filament lamp T1 3/4 MG 12 VAC/DC, 75 mA 10-1309.1309 0.001

14 VAC/DC, 80 mA 10-1310.1319 0.001

18 VAC/DC, 40 mA 10-1311.1249 0.001

24 VAC/DC, 35 mA 10-1312.1229 0.001

28 VAC/DC, 30 mA 10-1313.1209 0.001

28 VAC/DC, 40 mA 10-1313.1249 0.001

36 VAC/DC, 20 mA 10-1316.1179 0.001

36 VAC/DC, 30 mA 10-1316.1209 0.001

48 VAC/DC, 20 mA 10-1319.1179 0.001

48 VAC/DC, 25 mA 10-1319.1199 0.001

6 VAC/DC, 120 mA 10-1306.1349 0.001

6.3 VAC/DC, 200 mA 10-1307.1369 0.001

Single-LED

Socket Light colour Operating voltage/-current Typ-Nr. e

Single-LED T1 3/4 MG blue 12 VAC/DC, 7/14 mA 10-2J09.1066 0.002

24 VAC/DC, 7/14 mA 10-2J12.1066 0.002

28 VAC/DC, 7/14 mA 10-2J13.1066 0.002

48 VAC/DC, 4/8 mA 10-2J19.1046 0.002

6 VDC, 15 mA 10-2J06.3146 0.002

green 12 VAC/DC, 4/7 mA 10-2J09.1065 0.002

24 VAC/DC, 4/7 mA 10-2J12.1065 0.002

28 VAC/DC, 4/7 mA 10-2J13.1065 0.002

48 VAC/DC, 2/4 mA 10-2J19.1045 0.002

6 VDC, 7 mA 10-2J06.3145 0.002

red 12 VAC/DC, 7/14 mA 10-2J09.1062 0.002

24 VAC/DC, 7/14 mA 10-2J12.1062 0.002

28 VAC/DC, 7/14 mA 10-2J13.1062 0.002

48 VAC/DC, 4/8 mA 10-2J19.1042 0.002

6 VDC, 15 mA 10-2J06.3142 0.002

white diffuse 12 VAC/DC, 7/14 mA 10-2J09.1069 0.002

24 VAC/DC, 7/14 mA 10-2J12.1069 0.002

28 VAC/DC, 7/14 mA 10-2J13.1069 0.002

48 VAC/DC, 4/8 mA 10-2J19.1049 0.002

6 VDC, 15 mA 10-2J06.3149 0.002

yellow 12 VAC/DC, 7/14 mA 10-2J09.1064 0.002

24 VAC/DC, 7/14 mA 10-2J12.1064 0.002

28 VAC/DC, 7/14 mA 10-2J13.1064 0.002

48 VAC/DC, 4/8 mA 10-2J19.1044 0.002

6 VDC, 15 mA 10-2J06.3144 0.002

06.2009

Accessories

for lamp voltage reduction

Continuation see next page

Please keep to the country specific security rules.

for fitting with series resistors

Continuation see next page

CAUTION

A switching process might be released when replacing the lamp/LED !

Continuation see next page

for aligning buttons

Continuation see next page

Series resistor

Operating voltage Typ-Nr. e

Series resistor

10 kΩ, for filament lamp 48 VAC, 25 mA 230/240 V 02-904.7 0.003

2.7 kΩ, for filament lamp 48 VAC, 25 mA 110 V 02-904.0 0.003

3.3 kΩ, for filament lamp 48 VAC, 25 mA 125 V 02-904.1 0.003

4.7 kΩ, for filament lamp 48 VAC, 25 mA 145 V 02-904.3 0.003

Terminal plate empty

Typ-Nr. e

Terminal plate empty

10 spaces 125 x 60 x 15 mm 02-912.2 0.045

15 spaces 187.5 x 60 x 15 mm 02-912.3 0.090

5 spaces 62.5 x 60 x 15 mm 02-912.1 0.025

Assembling

Lens remover

Typ-Nr. e

Lens remover 02-905 0.011

Lamp remover

Typ-Nr. e

Lamp remover 61-9740.0 0.003

Mounting tool

Typ-Nr. e

Mounting tool

for Indicator 16 mm dia. 01-907 0.020

Dressing tool

Typ-Nr. e

Dressing tool 01-906 0.030

06.2009

Technical Data

Switching system

Self-cleaning, double-break, snap action switching system (with

contact gap 2 x 0.5 mm).

1 Normally closed or 1 Normally open contact per element.

Snap-action switching elements with soldering terminals at the

sides: Up to 4 switching element can be on a pushbutton (max. 4

Normally closed and 4 Normally open contacts).

Snap-action switching element with axial plug-in terminals 2.8 mm

stachable, only 1 switching element can be on a pushbutton.

Material

Material of contact

Gold plated silver

Switch housing

Axial plug-in-/soldering terminal 2.8 mm:

Diallylphthalate (DAP), Polyamide (PA66), Polysulfone, heat-

resistant and self-extinguishing

Soldering terminal: PA 6.6 Ultramide

Actuator housing

Polyetherimide, self-extinguishing

Mechanical characteristics

Terminals

Snap-action switching element with tinned soldering terminals at

the sides:

Max. wire diameter 2 wires à 1.2 mm

Max. wire cross-section of stranded cable 1 x 1 mm²

Snap-action switching element with axial plug-in terminals, which

can also be used as soldering terminals: Plug-in terminal 2.8 x 0.5

Soldering terminal:

Max. wire diameter 1 wire of 1.5 mm²

Max. wire cross-section of stranded cable 2 x 0.75 mm² or 1 x 1.0

mm²

Actuating force

2 N ... 5.5 N, depending on the number of switching elements

Actuating travel

3 mm

Rebound time

≤5ms

Mechanical lifetime

Momentary action 2 million cycles of operation

Maintained action 1 million cycles of operation

Electrical characteristics

Standards

IEC 61058, EN 61058

Rated voltage

250 VAC/VDC

Rated current

5 A

Contact resistance

Starting value (initial) ≤50 mΩ

Conventional free air thermal current

5 A

The maximum current in continuous operation and at ambient

temperature not exceeding the quoted maximum values.

Switch rating

250 VAC, 5 A (cosφ 1)

250 VAC, 3 A (cosφ 0,3)

Switch rating AC (cosφ 0,7)

Switch rating DC (inductive) L:R = 30 ms

Electric strength

2500 VAC, 50 Hz, 1 min. between all terminals and earth, as per

IEC 60512-2-11

Protection class

Environmental conditions

Storage temperature

-40 °C ... +85 °C

Service temperature

-25 °C ... +55 °C

For indicators and illuminated pushbuttons mounted as a block,

make sure the heat can escape freely.

Protection degree

Front as per:

IP 40

IP 65 with spray cover

Shock resistance

(Single impacts, semi-sinusoidal)

15 g for 11 ms, as per IEC 60512-4-3, IEC 60068-2-27

Vibration resistance

(sinusoidal)

10 g at 0-2000 Hz, amplitude 1.5 mm, as per IEC 60512-4-4, IEC

60068-2-6

Climate resistance

Standard condition, as per IEC 60068-2-3 and 2-30

Changing condition, as per IEC 60068-2-14 and 2-33

Approvals

Approbations

CB (IEC 61058)

CSA

ENEC (EN 61058)

Germanischer Lloyd

Declaration of conformity

Actuator with snap-action switching element

Voltage 125 VAC 250 VAC

Current 3 A 2 A

Voltage 24 VDC 60 VDC 110 VDC 220 VDC

Current 2 A 0.7 A 0.2 A 0.1 A

06.2009

Technical Data

Switching system

This low level switching element was designed for switching low

powers in electronic circuits. The mechanism assures reliable

switching of loads ranging from a few μA/μV up to 100 mA/42 VAC/

DC.

Single-break momentary contact, as normally open or normally

closed with 4 independent points of contact. 2 momentary contacts

per switching element; combination of normally open and normally

closed is possible.

Special features are the long life, extremely short rebound time and

stable contact resistance.

Material

Material of contact

Gold plated

Switch housing

Polysulfone, heat-resistant and self-extinguishing

Actuator housing

Polyetherimide, self-extinguishing

Mechanical characteristics

Terminals

The universal terminals permit these units to be mounted on printed

circuit boards (PCB). These terminals can also be used as

soldering or plug-in terminals.

For these terminals we can also supply a plug-in base which, when

soldered on to the board, enables the switch to be plugged in.

Soldering terminal:

Max. wire diameter 2 wires à 0.8 mm

Max. wire cross-section of stranded cable 1x 0.75 mm²

Plug-in terminal: 2.0 x 0.5 mm

Actuating force

3 N ... 3,5 N

Actuating travel

3 mm

Rebound time

Typ. <100 μs

Mechanical lifetime

Momentary action 5 million cycles of operation

Maintained action 1 million cycles of operation

Electrical cha rac te ris tic s

Standards

EN 61058

Contact resistance

Starting value (initial) ≤50 mΩ

Switch rating

10 μA, 100 μV to 100 mA at 42 VAC/VDC

Electric strength

2500 VAC, 50 Hz, 1 min. between all terminals and earth, as per

IEC 60512-2-11

Protection class

Environmental conditions

Storage temperature

-40 °C ... +85 °C

Service temperature

-25 °C ... +55 °C

For indicators and illuminated pushbuttons mounted as a block,

make sure the heat can escape freely.

Protection degree

Front as per:

IP 40

IP 65 with spray cover

Shock resistance

(Single impacts, semi-sinusoidal)

15 g for 11 ms, as per IEC 60512-4-3, IEC 60068-2-27

Vibration resistance

(sinusoidal)

10 g at 0-2000 Hz, amplitude 1.5 mm, as per IEC 60512-4-4, IEC

60068-2-6

Climate resistance

Standard condition, as per IEC 60068-2-3 and 2-30

Changing condition, as per IEC 60068-2-14 and 2-33

Actuator with low level switching element

06.2009

Technical Data

Switching system

Buzzer system

Electronic non-contacting buzzer

with IC oscillator

Material

Alarm buzzer case

Polyetherimide

Front bezel

Polyamide

Mechanical characteristics

Terminals

Soldering terminal

Electrical characteristics

Frequency (tone)

Approx. 2.8 kHz

Interval frequency

approx. 3 Hz

Sound pressure

88 dB (A) ±8 dB at a distance of 0.1 m

Volume variable with a 1 MΩ potentiometer or corresponding fixed

resistor

Operation Voltage/Current

Typ. 10 VAC ... 55 VAC, 25 mA

Typ. 10 VDC ... 75 VDC, 15 mA

Environmental conditions

Storage temperature

-40 °C ... +85 °C

Service temperature

-25 °C ... +55 °C

Protection degree

IP 40

Approvals

Approbations

Germanischer Lloyd

Declaration of conformity

Switching system

Buzzer system

Electronic non-contacting buzzer

with IC oscillator

Material

Alarm buzzer case

Polyetherimide

Front bezel

Polyamide

Mechanical characteristics

Terminals

Plug-in terminal 2.8 x 0.5 mm

Electrical characteristics

Frequency (tone)

ca. 2.0 kHz

Interval frequency

2 Hz

Sound pressure

88 db (A) ±8 dB at a distance of 0.1 m

Operation Voltage/Current

10 VDC ... 26 VDC, ≤20 mA

Environmental conditions

Storage temperature

-40 °C ... +85 °C

Service temperature

-25 °C ... +55 °C

Protection degree

IP 40

Approvals

Approbations

Germanischer Lloyd

Declaration of conformity

Buzzer Typ-Nr. 31-810.005 Buzzer Typ-Nr. 31-801.002

Typical Applications

06.2009

When indicators and illuminated pushbuttons equipped with diodes, the user is able to perform a lamp check or wire an alarm

circuit simply with a considerable saving of space.

Diode element

Typical Applications

06.2009

Depending on how terminals are connected,

the buzzer can operate with a continous tone

a(-) b(+) or with intermittent tone a(+) b(-).

Buzzer (31-801.002)

Buzzer (31-810.005)

10 - 26 VDC

8765

1234

8765

1234

8765

1234

8765

1234

1. Supply voltage I

Continuos tone

U = 10 - 35 VAC

U = 10 - 50 VDC

2. Supply voltage II

Continous tone

U = 35 - 55 VAC

U = 35 - 75 VDC

3. Intermittent tone

Interval aprox. 3 Hz

4. Volume control

Application guidelines

06.2009

When switching inductive loads such as relays, DC motors, and DC soleno ids, it is always important

to absorb surges (e.g. with a diode) to protect the contacts. When these inductive loads are switched

off, a counter emf can severely damage switch contacts and greatly shorten lifetime.

Fig. 1 shows an inductive load with a free-wheeling diode connected in parallel. This free-wheeling

diode provides a path for the inductor current to flow when the current is interrupted by the switch.

Without this free-wheeling diode, the voltage across the coil will be limited only by dielectric break-

down voltages of the circuit or parasitic elements of the coil. This voltage can be kilovolts in amplitude

even when nominal circuit voltages are low (e.g. 12 VDC) see Fig. 2.

The free-wheeling diode should be chosen so that the reverse breakdown voltage is greater than the

voltage driving the inductive load. The DC blocking voltage (VR) of the free-wheeling diode can be

found in the datasheet of a diode. The forward current should be equal or greater than the maximum

current flowing through the load.

To get an efficient protection, the free-wheeling diode must be connected as close as possible

to the inductive load!

Suppressor circuits

Sveral hundred

to several

thousend volts

ON OFF

e = L di

VDC

Switch

Free-wheeling

diode

Inductive

load

Counter emf

over load without free-wheeling diode

Fig. 2

Switching with inductive load

Fig. 1

Marking

06.2009

All dimensions in mm

General notes

1. Engraving

In addition to the most commonly used world

languages, in DIN 1451-3 close spacing, other

typefaces are available as Scandinavian,

Slavic, Greek, Russian and Polish.

Red, blue and black lenses are filled with white

colour. Other colour lenses are filled in black.

Standard height of letters is 2 mm. If the height

is not specified, we will supply 2 mm engraved

letters.

2. Hot stamping

For larger series it is worth considering

markings by means of hot stamping We will

pleased to advise you.

For letters and figures, typefaces with 2.5 mm,

3 mm and 4 mm are available.

3. Film inserts

Instead of using engraving the lenses can be

fitted with transparent film inserts, as an

alternative. For this purpose, though, it is

advisible to use transparent lenses.

In the case of use of a smoke-black lens the

fitted film becomes readable only if the lamp is

on.

To insert the film, the feet of the lens holder

have to be pushed together far enough to

enable the lens to be lift off easily.

The film thickness is 0.2 mm.

Important : Consider pushbutton mounting

orientation befor specifying engraving

characters !

Front size

(Lens) Film insert

max. size Height of letters

hNumber of lines Number of (target value)

capital letters per line Number of (target value)

small letters per line Image

18 dia.

(15.8 dia.) 12.8 dia. 2.5 3 6 6 B4

3.0 2 5 6 B4

4.0 2 3 4 B4

5.0 1 2 3 B4

6.0 1 2 2 B4

8.0 1 2 2 B4

18 x 18

(15.2 x 15.2) 12.7 x 12.7 2.5 4 7 - 8 8 B3

3.0 3 6 - 7 7 B3

4.0 2 4 - 5 5 B3

5.0 2 3 - 4 4 B3

6.0 1 3 3 - 4 B3

8.0 1 2 - 3 2 - 3 B3

18 x 24

(15.2 x 21.2) 12.7 x 18.7 2.5 4 11 12 B1

57 - 8 8 B2

3.0 3 9 - 10 10 - 11 B1

46 - 7 7 B2

4.0 2 7 7 - 8 B1

34 - 5 5 B2

5.0 2 5 - 6 6 B1

3 - 4 4 B2

6.0 1 4 - 5 5 B1

23 3 - 4 B2

8.0 1 3 - 4 3 - 4 B1

2 - 3 2 - 3 B2

B1 B2 B4B3

abc abc

abc

Film

Drawings

06.2009

1 PCB plug-in base page 9

2 PCB plug-in base page 9

3 PCB plug-in base page 9

4 Indicator actuator page 5 | Illuminated pushbutton actuator page 6

Component layout

b3421a

all holes

Switch

Extendable

mounting pins

Drilling plan (conductor side)

15.24

17.9

9.6

17.9

7.62

1.271.27

0.85

5 x 2.54

1.27 1.27

Ø1.0

Ø2.1 hole for

central mounting

with M2 screw,

if desired

all holes

Ø1.0

5.08

10.16

12.7

3.813.81

Ø2.1 hole for

central mounting

with M2 screw,

if desired all holes

Ø1.0

0.1

3.813.81

7.62

10.16

7.62

PCB layout (conductor side)Terminals (rearside)

Anti twist device

only 18 x 24 mm

10.16

5.08 2.54

7.62

3.81

18 mm dia. 18 x 18 mm 18 x 24 mm

Ø1.0

all holes

Drawings

06.2009

1 Indicator actuator page 5 | Buzzer page 5 | Illuminated pushbutton actuator page 6 | Blind plug page 8

2 Front protective cap page 8

1 Protective guard page 8

2 Protective guard page 8

Mounting dimensions

Technica l dra wi n g

24 min. 10.4

18 min.

+0.2

18 min.

+0.2

18 min.

+0.2

18 x 24 mm18 x 18 mm Ø18 mm

18 x 18 mm 18 x 24 mm

24 min.

+0.2

30 min.

24 min.

+0.2

26 12

24 12

Drawings

06.2009

3 Buzzer page 5

4 Front protective cap page 8

5 Protective cover page 7

6 Protective cover page 7

7 Indicator actuator page 5

18 x 24 mm

10.5

2.8 x 0.5

1.5 ... 6

30 13

24 x 30 mm 24 x 24 mm

20 14.5

25.5

10.5

23.5

24 14.5

25.5

10.5

23.5

18 x 24 mm 18 x 18 mm Ø 18 mm

LL1UU+D

23.5 26.5 36 -

361D, 2D

Soldering terminal

Universal terminal

Soldering terminal

(also pluggable)

Universal terminal

+ diodes

U+D

10.5

2.8 x 0.5

1.5 ... 6

Drawings

06.2009

8 Illuminated pushb utton actuator page 6

1 Buzzer page 5

2 Buzzer page 5

3 Indicator actuator page 5

4 Indicator actuator page 5

5 Illuminated pushb utton actuator page 6

Circuit drawing

Soldering terminal

Universal terminal

+ diode

Soldering terminal

(also pluggable)

U+D

10.5

2.8 x 0.5

1.5 ... 6 18 x 24 mm 18 x 18 mm Ø 18 mm

LU+DL1 U

1NC+1NO

2NC+2NO

3NC+3NO

4NC+4NO

1NC+1NO+D

2NC+2NO+D

36.5

51.5

43.5

1NC, 1NO, 1NC+1NO, 2NC, 2NO -

8765

1234

b+(x2)

a-(x1)

31x1-

24x2+

III

Drawings

06.2009

6 Illuminated pushbutton actuator page 6

7 Illuminated pushbutton actuator page 6

8 Illuminated pushbutton actuator page 6

9 Illuminated pushbutton actuator page 6

10 Illuminated pushbutton actuator page 6

11 Illuminated pushbutton actuator page 6

12 Illuminated pushbutton actuator page 6

13 Illuminated pushbutton actuator page 6

31x1-

24x2+

III

31a-

24b+

3(+)

4(-)

31a-

24b+

3(+)

4(-)

1(-)

2(+)

31x1-

24x2+

31a-

24b+

31a-

24b+

3(+)

4(-)

31a-

24b+

3(+)

4(-)

1(-)

2(+)

31x1-

24x2+

Drawings

06.2009

14 Illuminated pushbutton actuator page 6

15 Illuminated pushbutton actuator page 6

16 Illuminated pushbutton actuator page 6

17 Illuminated pushbutton actuator page 6

18 Illuminated pushbutton actuator page 6

19 Illuminated pushbutton actuator page 6

20 Illuminated pushbutton actuator page 6

21 Illuminated pushbutton actuator page 6

1a-

2b+

1a-

4b+

1a-

2b+

13a-

2b+

13a-

2b+

31x1-

24x2+

III

31x1-

24x2+

III

31a-

24b+

3(+)

4(-)

Drawings

06.2009

22 Illuminated pushbutton actuator page 6

23 Illuminated pushbutton actuator page 6

24 Illuminated pushbutton actuator page 6

25 Illuminated pushbutton actuator page 6

26 Illuminated pushbutton actuator page 6

27 Illuminated pushbutton actuator page 6

28 Illuminated pushbutton actuator page 6

29 Illuminated pushbutton actuator page 6

31a-

24b+

3(+)

4(-)

1(-)

2(+)

31x1-

24x2+

31x1-

24x2+

31a-

24b+

3(+)

4(-)

31a-

24b+

3(+)

4(-)

1(-)

2(+)

31x1-

24x2+

1a-

2b+

1a-

4b+

Drawings

06.2009

30 Illuminated pushbutton actuator page 6

31 Illuminated pushbutton actuator page 6

32 Illuminated pushbutton actuator page 6

33 Indicator actuator page 5

34 Indicator actuator page 5

1a-

2b+

13a-

2b+

13a-

2b+

b+(x2) 4(-)

a-(x1) 3(+)

b+(x2) 4(-)

a-(x1) 3(+)

2(+)

1(-)

Index from Typ-Nr.

06.2009

Typ-Nr. Page Typ-Nr. Page Typ-Nr. Page

01-906 ........................................11

01-907 ........................................11

01-926 ..........................................8

01-927 ..........................................8

01-928 ..........................................9

01-929 ..........................................9

01-947.0 .......................................8

01-948.0 .......................................8

01-949.0 .......................................8

02-904.0 .....................................11

02-904.1 .....................................11

02-904.3 .....................................11

02-904.7 .....................................11

02-905 ........................................11

02-912.1 .....................................11

02-912.2 .....................................11

02-912.3 .....................................11

10-1306.1349 .............................10

10-1307.1369 .............................10

10-1309.1309 .............................10

10-1310.1319 .............................10

10-1311.1249 .............................10

10-1312.1229 .............................10

10-1313.1209 .............................10

10-1313.1249 .............................10

10-1316.1179 .............................10

10-1316.1209 .............................10

10-1319.1179 .............................10

10-1319.1199 .............................10

10-2J06.3142 ............................. 10

10-2J06.3144 ............................. 10

10-2J06.3145 ............................. 10

10-2J06.3146 ............................. 10

10-2J06.3149 ............................. 10

10-2J09.1062 ............................. 10

10-2J09.1064 ............................. 10

10-2J09.1065 ............................. 10

10-2J09.1066 ............................. 10

10-2J09.1069 ............................. 10

10-2J12.1062 ............................. 10

10-2J12.1064 ............................. 10

10-2J12.1065 ............................. 10

10-2J12.1066 ............................. 10

10-2J12.1069 ............................. 10

10-2J13.1062 ............................. 10

10-2J13.1064 ............................. 10

10-2J13.1065 ............................. 10

10-2J13.1066 ............................. 10

10-2J13.1069 ............................. 10

10-2J19.1042 ............................. 10

10-2J19.1044 ............................. 10

10-2J19.1045 ............................. 10

10-2J19.1046 ............................. 10

10-2J19.1049 ............................. 10

31-030.002 ...................................5

31-030.005 ...................................5

31-031.006 ...................................5

31-040.002 ...................................5

31-040.005 ...................................5

31-041.006 ...................................5

31-050.002 ...................................5

31-050.005 ...................................5

31-051.006 ...................................5

31-121.022 ................................... 6

31-121.0252 ................................. 6

31-122.0252 ................................. 6

31-123.0252 ................................. 6

31-124.0252 ................................. 6

31-131.022 ................................... 6

31-131.0252 ................................. 6

31-132.0252 ................................. 6

31-133.0252 ................................. 6

31-134.0252 ................................. 6

31-151.022 ................................... 6

31-151.0252 ................................. 6

31-152.0252 ................................. 6

31-153.0252 ................................. 6

31-154.0252 ................................. 6

31-261.022 ................................... 6

31-261.0252 ................................. 6

31-262.0252 ................................. 6

31-263.0252 ................................. 6

31-264.0252 ................................. 6

31-271.022 ................................... 6

31-271.0252 ................................. 6

31-272.0252 ................................. 6

31-273.0252 ................................. 6

31-274.0252 ................................. 6

31-281.022 ................................... 6

31-281.0252 ................................. 6

31-282.0252 ................................. 6

31-283.0252 ................................. 6

31-284.0252 ................................. 6

31-421.036 ................................... 6

31-422.036 ................................... 6

31-423.036 ................................... 6

31-425.036 ................................... 6

31-426.036 ................................... 6

31-431.036 ................................... 6

31-432.036 ................................... 6

31-433.036 ................................... 6

31-435.036 ................................... 6

31-436.036 ................................... 6

31-451.036 ................................... 6

31-452.036 ................................... 6

31-453.036 ................................... 6

31-455.036 ................................... 6

31-456.036 ................................... 6

31-461.036 ................................... 6

31-462.036 ................................... 6

31-463.036 ................................... 6

31-465.036 ................................... 6

31-466.036 ................................... 6

31-471.036 ................................... 6

31-472.036 ................................... 6

31-473.036 ................................... 6

31-475.036 ................................... 6

31-476.036 ................................... 6

31-481.036 ................................... 6

31-482.036 ................................... 6

31-483.036 ................................... 6

31-485.036 ................................... 6

31-486.036 ................................... 6

31-701.006 ................................... 5

31-702.006 ................................... 5

31-703.006 ................................... 5

31-704.006 ...................................5

31-705.0292 .................................6

31-706.0292 .................................6

31-707.0292 .................................6

31-708.0292 .................................6

31-709.0292 .................................6

31-710.0292 .................................6

31-711.0292 .................................6

31-712.0292 .................................6

31-713.0292 .................................6

31-714.0292 .................................6

31-715.0292 .................................6

31-716.0292 .................................6

31-717.0292 .................................6

31-718.0292 .................................6

31-719.0292 .................................6

31-720.0292 .................................6

31-743.0292 .................................6

31-744.0292 .................................6

31-745.0292 .................................6

31-746.0292 .................................6

31-747.0292 .................................6

31-748.0292 .................................6

31-749.0292 .................................6

31-750.0292 .................................6

31-801.002 ...................................5

31-810.005 ...................................5

31-901.0 .......................................7

31-901.2 .......................................7

31-901.3 .......................................7

31-901.4 .......................................7

31-901.5 .......................................7

31-901.6 .......................................7

31-901.8 .......................................7

31-901.9 .......................................7

31-902.0 .......................................7

31-902.8 .......................................7

31-903.1 .......................................7

31-903.2 .......................................7

31-903.3 .......................................7

31-903.4 .......................................7

31-903.5 .......................................7

31-903.6 .......................................7

31-903.7 .......................................7

31-904.2 .......................................7

31-904.3 .......................................7

31-904.4 .......................................7

31-904.5 .......................................7

31-904.6 .......................................7

31-904.7 .......................................7

31-905.2 .......................................7

31-905.4 .......................................7

31-905.5 .......................................7

31-905.7 .......................................7

31-920 ..........................................7

31-923 ..........................................8

31-924.2 .......................................8

31-925 ..........................................7

31-928 ..........................................9

31-929 ..........................................9

31-931.0 .......................................7

31-931.2 .......................................7

31-931.3 .......................................7

Index from Typ-Nr.

06.2009

Typ-Nr. Page Typ-Nr. Page Typ-Nr. Page

31-931.4 .......................................7

31-931.5 .......................................7

31-931.6 .......................................7

31-931.8 .......................................7

31-931.9 .......................................7

31-933.1 .......................................7

31-933.2 .......................................7

31-933.3 .......................................7

31-933.4 .......................................7

31-933.5 .......................................7

31-933.6 .......................................7

31-933.7 .......................................7

31-935.2 .......................................7

31-935.4 .......................................7

31-935.5 .......................................7

31-935.7 .......................................7

31-940 ..........................................9

31-941 ..........................................9

31-942 ..........................................9

31-945 ..........................................9

31-946 ..........................................9

31-951.0 .......................................7

31-951.2 .......................................7

31-951.3 .......................................7

31-951.4 .......................................7

31-951.5 .......................................7

31-951.6 .......................................7

31-951.8 .......................................7

31-951.9 .......................................7

31-952.0 .......................................7

31-953.1 .......................................7

31-953.2 .......................................7

31-953.3 .......................................7

31-953.4 .......................................7

31-953.5 .......................................7

31-953.6 .......................................7

31-953.7 .......................................7

31-954.2 .......................................7

31-954.3 .......................................7

31-954.4 .......................................7

31-954.5 .......................................7

31-954.6 .......................................7

31-954.7 .......................................7

31-955.2 .......................................7

31-955.4 .......................................7

31-955.5 .......................................7

31-955.7 .......................................7

61-9740.0 ...................................11

EAO AG

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