EAO – Your Expert Partner for Human Machine Interfaces EAO Product Information Series 31
Switches and Indicators 31
Contents 31 Description ...................................................................................................... 3 Product Assembly .......................................................................................... 4 Devices raised mounting ............................................................................... 5 Accessories..................................................................................................... 7 Technical Data................................
31 Product Assembly Indicator round, raised mounting 0 1 1 2 3 4 5 Lens LED Switch housing Front plate Fixing nut 2 3 4 5 Illuminated pushbutton rectangular, raised mounting 0 1 2 3 4 5 4 06.
31 Description Specimen order Product Information 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.
31 Devices raised mounting Indicator actuator Essential Accessories: d Lens plastic page 7 d Single-LED page 10 4 4 31-030.005 31-030.002 31-031.006 4 Circuit drawing Ø 18 mm Typ-Nr. Technical drawing UT UT S S1 UT a 18 x 24 mm Typ-Nr. 31-701.006 31-702.006 31-040.005 31-040.002 31-041.006 Mounting dimensions 1D 2D - b 18 x 18 mm Typ-Nr. 31-703.006 31-704.006 31-050.005 31-050.002 31-051.
31 Devices raised mounting Illuminated pushbutton actuator Essential Accessories: d Lens plastic page 7 d Single-LED page 10 - 2 NC - 2 NO - 1 NC + 1 NO 1D 2D - M 2 NC + 2 NO 1D 2D - 3 NC + 3 NO - 4 NC + 4 NO - MA M MA M MA M MA M MA M 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Circuit drawing 1 NO Ø 18 mm Typ-Nr. 31-476.036 31-436.036 31-473.036 31-433.036 31-475.036 31-435.036 31-472.036 31-432.036 31-471.036 31-431.036 31-747.0292 31-743.0292 31-748.0292 31-744.0292 31-271.0252 31-271.
31 Accessories Front Lens plastic Continuation see next page Lens plastic concave, illuminative concave, non-illuminative flush, illuminative flush, illuminative (not recommended for film insert) flush, non-illuminative Lens blue transparent colourless transparent green transparent orange transparent red transparent yellow transparent black opaque grey opaque blue transparent colourless transparent green transparent orange transparent red transparent smoked transparent yellow transparent blue transluc
31 Accessories Front protective cap front protection IP 67 Front protective cap two-part a 18 x 24 mm Typ-Nr. Technical drawing b 18 x 18 mm Typ-Nr. 31-923 Front protective cap PVC Silikon Mounting dimensions Continuation see next page e 31-924.2 2 2 4 4 0.003 0.003 Mounting dimensions from page 20, Technical drawing from page 20 Protective guard matt chromium-plated Typ-Nr.
31 Accessories > Backside PCB plug-in base PCB plug-in base 16.4 mm dia. x 9.8 mm for Low level switching element, Pins axial 17.8 x 12.9 mm x 9.8 mm for Snap-action switching element 2.8 mm, Pins axial 17.9 x 17.9 x 8.4 mm for Low level switching element, Pins bent at right-angle P Typ-Nr. 31-940 P P 31-942 31-941 Component layout Terminals Continuation see next page e 2 0.002 3 1 0.002 0.
31 Accessories > Illumination Filament lamp Continuation see next page Socket Filament lamp T1 3/4 MG Operating voltage/-current 12 VAC/DC, 75 mA 14 VAC/DC, 80 mA 18 VAC/DC, 40 mA 24 VAC/DC, 35 mA 28 VAC/DC, 30 mA 28 VAC/DC, 40 mA 36 VAC/DC, 20 mA 36 VAC/DC, 30 mA 48 VAC/DC, 20 mA 48 VAC/DC, 25 mA 6 VAC/DC, 120 mA 6.3 VAC/DC, 200 mA e Typ-Nr. 10-1309.1309 10-1310.1319 10-1311.1249 10-1312.1229 10-1313.1209 10-1313.1249 10-1316.1179 10-1316.1209 10-1319.1179 10-1319.1199 10-1306.1349 10-1307.1369 0.
31 Accessories Series resistor for lamp voltage reduction Continuation see next page Series resistor 10 kΩ, for filament lamp 48 VAC, 25 mA 2.7 kΩ, for filament lamp 48 VAC, 25 mA 3.3 kΩ, for filament lamp 48 VAC, 25 mA 4.7 kΩ, for filament lamp 48 VAC, 25 mA e Operating voltage 230/240 V Typ-Nr. 02-904.7 0.003 110 V 125 V 145 V 02-904.0 02-904.1 02-904.3 0.003 0.003 0.003 Typ-Nr. 02-912.2 0.045 02-912.3 02-912.1 0.090 0.025 Please keep to the country specific security rules.
31 Technical Data Conventional free air thermal current 5A The maximum current in continuous operation and at ambient temperature not exceeding the quoted maximum values. Actuator with snap-action switching element 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.
31 Technical Data > Actuator with low level switching element 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.
31 Technical Data > > Buzzer Typ-Nr. 31-810.005 Switching system Buzzer system Electronic non-contacting buzzer with IC oscillator Material Buzzer Typ-Nr. 31-801.
31 Typical Applications Diode element 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. 0 15 06.
31 Typical Applications > Buzzer (31-801.002) Depending on how terminals are connected, the buzzer can operate with a continous tone a(-) b(+) or with intermittent tone a(+) b(-). 0 a b + 10 - 26 VDC > Buzzer (31-810.005) 0 8 7 6 5 8 7 6 5 1 2 3 4 1. Supply voltage I Continuos tone U = 10 - 35 VAC U = 10 - 50 VDC 16 06.2009 8 7 6 5 0 U U 8 7 6 5 1 2 3 4 2. Supply voltage II Continous tone U = 35 - 55 VAC U = 35 - 75 VDC 1 2 3 4 3. Intermittent tone Interval aprox. 3 Hz 1 2 3 4 4.
31 Application guidelines Suppressor circuits When switching inductive loads such as relays, DC motors, and DC solenoids, 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.
31 Marking General notes 0 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.
31 Drawings Component layout 1 PCB plug-in base page 9 Extendable mounting pins 3 1 4 2 a 9 4 3 b b 17.9 31 Switch a 42 9.6 17.9 1.27 Ø1.0 all holes 7.62 15.24 5 x 2.54 1.27 1.27 1.27 0.85 Drilling plan (conductor side) 2 PCB plug-in base page 9 3.81 3.81 Ø1.0 5.08 10.16 all holes Ø2.1 hole for central mounting with M2 screw, if desired 12.7 3 PCB plug-in base page 9 7.62 Ø2.1 hole for central mounting with M2 screw, if desired 10.16 3.81 7.62 3.81 + 0.1 Ø1.
31 Drawings Mounting dimensions 1 Indicator actuator page 5 | Buzzer page 5 | Illuminated pushbutton actuator page 6 | Blind plug page 8 .2 +0 0 .2 +0 0 16 .2 +0 0 16 16 18 min. 24 min. 18 min. 10.4 2 Front protective cap page 8 18 x 24 mm 24 min. 24 min. 18 x 18 mm .2 +0 0 .2 +0 0 16 16 24 min. 30 min. Technical drawing 18 1 Protective guard page 8 26 12 18 2 Protective guard page 8 24 12 20 06.2009 Ø18 mm 18 min. 2 18 min. 18 x 24 mm 18 min.
31 Drawings 2.8 x 0.5 3 Buzzer page 5 18 x 24 mm 1.5 ... 6 67 10.5 36 24 4 Front protective cap page 8 30 13 24 x 30 mm 24 x 24 mm 5 Protective cover page 7 32 25.5 23.5 10.5 10 14.5 20 6 Protective cover page 7 32 25.5 23.5 10.5 12 14.5 24 2.8 x 0.5 L1 10.5 3 U U+D Universal terminal + diodes Ø 18 mm Universal terminal 18 x 18 mm Soldering terminal (also pluggable) 18 x 24 mm 1.5 ... 6 Soldering terminal 7 Indicator actuator page 5 L L1 U U+D 23.5 26.
31 Drawings Universal terminal + diode 18 x 18 mm Universal terminal 18 x 24 mm Soldering terminal (also pluggable) Soldering terminal 8 Illuminated pushbutton actuator page 6 L L1 U U+D 1NC+1NO 29 36 - - 2NC+2NO 36.5 - - - 3NC+3NO 44 - - - 4NC+4NO Ø 18 mm 2.8 x 0.5 1.5 ... 6 3 L1 10.
31 Drawings 6 Illuminated pushbutton actuator page 6 1 3 1 I 2 3 1 II 2 4 3 x1- 4 x2+ III 2 4 7 Illuminated pushbutton actuator page 6 1 3 1 I 2 3 a- 3(+) 4 b+ 4(-) II 2 4 8 Illuminated pushbutton actuator page 6 1 1 3 2 3 a- 3(+) 1(-) 4 b+ 4(-) 2(+) II I 2 4 9 Illuminated pushbutton actuator page 6 1 1 3 2 3 x1- 4 x2+ II I 2 4 10 Illuminated pushbutton actuator page 6 1 3 a- 4 b+ I 2 11 Illuminated pushbutton actuator page 6 1 3 a- 3(+) 4
31 Drawings 14 Illuminated pushbutton actuator page 6 1 a- 2 b+ 15 Illuminated pushbutton actuator page 6 1 3 a- 2 4 b+ 16 Illuminated pushbutton actuator page 6 1 a- 2 b+ 17 Illuminated pushbutton actuator page 6 1 3 a- 2 4 b+ 18 Illuminated pushbutton actuator page 6 1 3 a- 2 4 b+ 19 Illuminated pushbutton actuator page 6 1 3 1 2 1 3 4 2 3 1 2 4 4 2 20 Illuminated pushbutton actuator page 6 1 3 1 2 1 3 4 2 3 x1- 4 x2+ III II I 2 4 21 Illuminated pu
31 Drawings 22 Illuminated pushbutton actuator page 6 1 3 1 I 2 3 a- 3(+) 1(-) 4 b+ 4(-) 2(+) II 2 4 23 Illuminated pushbutton actuator page 6 1 3 1 I 2 3 x1- 4 x2+ II 2 4 24 Illuminated pushbutton actuator page 6 1 3 x1- 4 x2+ I 2 25 Illuminated pushbutton actuator page 6 1 3 a- 3(+) 4 b+ 4(-) I 2 26 Illuminated pushbutton actuator page 6 1 3 a- 3(+) 1(-) 4 b+ 4(-) 2(+) I 2 27 Illuminated pushbutton actuator page 6 1 3 x1- 4 x2+ I 2 28 Illuminated
Drawings 30 Illuminated pushbutton actuator page 6 1 a- 2 b+ 31 Illuminated pushbutton actuator page 6 1 3 a- 2 4 b+ 32 Illuminated pushbutton actuator page 6 1 3 a- 2 4 b+ 33 Indicator actuator page 5 a-(x1) 3(+) b+(x2) 4(-) 34 Indicator actuator page 5 a-(x1) 3(+) 1(-) b+(x2) 4(-) 2(+) 26 06.
Index from Typ-Nr. 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 ......
Index from Typ-Nr. 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 ...................
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