Series
51
Series 51
Versatile. Attractive and compact.
https://eao.com/
51
Information about the Series
Key advantages
§
Compact construction
§
Various configuration options
§
Reliable and proven
§
Timeless and modern design
§
Raised or flush mounting
§
Low back panel depth (Stop Switch)
Mounting cut-outs
§
16.2 mm
Ø
§
22.3 mm
Ø
§
21.2 mm x 21.2
§
21.2 mm x 27.2
mm
mm
Terminal
§
Soldering terminal
§
Plug-in terminal
§
Soldering/plug-in terminal
§
PCB (with PCB plug-in base)
Typical application areas
§
Food and beverages
§
Special vehicles
§
Buildings services and
§
Public transportation
§
Medical engineering
automation
Lens Material
§
Aluminium
§
Plastic
Functions
§
Pushbutton
§
Illuminated pushbutton
§
Selector switch
§
Keylock switch
§
Indicator
§
Stop switch
Markings
§
Engraving
§
Laser marking
§
Hot stamping
§
Film insert/marking
§
Pad printing
§
Screen print
plate
Design
§
Flush
§
Raised
Approvals
§
CB (IEC 61058)
§
CSA
§
CQC
§
ENEC (EN 61058)
§
DNV GL (vormals Germanischer
§
UL
IP front protection
§
IP65
Lloyd)
Raitings
§
VAC (100 mA)
42
§
250 VAC (5 A)
Conformities
§
CE
§
2014/30/EU
§
2014/35/EU
§
2011/65/EU
§
2006/42/EU
(EMC)
(LVD)
(RoHS)
(MD)
572
eao.com
§
01/2019
Index
Flush design
Pushbutton round
Illuminated pushbutton square
Illuminated pushbutton rectangular
Illuminated pushbutton round
Selector switch 2 positions square
Selector switch 2 positions round
Keylock switch 2 positions square
Keylock switch 2 positions rectangular
Keylock switch 2 positions round
Keylock switch 3 positions square
Keylock switch 3 positions rectangular
Keylock switch 3 positions round
Indicator square
Indicator rectangular
Indicator round
Raised design
Illuminated pushbutton square
Illuminated pushbutton rectangular
Illuminated pushbutton round
Mushroom-head pushbutton
Selector switch 2 positions, round
Selector switch 3 positions, round
Keylock switch 2 positions square
Keylock switch 2 positions rectangular
Keylock switch 2 positions round
Keylock switch 3 positions square
Keylock switch 3 positions rectangular
Keylock switch 3 positions round
Indicator square
Indicator rectangular
Indicator round
Stop switch
Components
Accessories
Technical data
Marking
Application guidelines
51
574
577
580
583
586
589
592
595
598
601
603
605
607
609
611
613
616
619
622
624
628
630
633
636
639
641
643
645
647
649
651
653
662
669
674
675
01
02
03
04
09
14
17
18
19
22
31
41
45
51
56
57
61
70
71
82
84
92
96
01/2019
§
eao.com
573
51
Flush design
01
02
03
04
2
36.5 ... 59
Pushbutton round, IP65
1.5 ... 4
B
44
L
A
C
41
3
Equipment consisting of (schematic overview)
Lens
Page 653
Actuator
09
14
17
18
19
22
Product can differ from the current configuration.
Dimensions [mm]
A = Solder terminal
B = Plug-in terminal 2.8 mm x 0.5 mm
C = Universal terminal 2.0 mm x 0.5 mm
Front bezel set
Page 658
Fixing nut
Each Part Number listed below includes all the
black components shown in the 3D-drawing.
To obtain a complete unit, please select the red
components from the pages shown.
Mounting cut-outs [mm]
31
41
45
51
56
Maintained
Actuator, Front dimension Ø 25 mm
Switching action
Momentary
Contacts
1 NC / 1 NO
1 NC / 1 NO
2 NC / 2 NO
3 NC / 3 NO
4 NC / 4 NO
1 NC / 1 NO
1 NC / 1 NO
2 NC / 2 NO
3 NC / 3 NO
4 NC / 4 NO
Momentary
2 NO
2 NC
1 NC / 1 NO
1 NO
1 NC
Maintained
2 NO
2 NC
1 NC / 1 NO
1 NO
1 NC
Terminal
Plug-in terminal
Soldering terminal
Soldering terminal
Soldering terminal
Soldering terminal
Plug-in terminal
Soldering terminal
Soldering terminal
Soldering terminal
Soldering terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Universal terminal
Switching system
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Snap-action switching element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Low-level element
Part No.
51-151.022F
51-151.0252F
51-152.0252F
51-153.0252F
51-154.0252F
51-281.022F
51-281.0252F
51-282.0252F
51-283.0252F
51-284.0252F
51-451.036F
51-452.036F
51-453.036F
51-455.036F
51-456.036F
51-481.036F
51-482.036F
51-483.036F
51-485.036F
51-486.036F
Wiring
diagram
247
247
251
253
255
250
250
252
254
256
245
243
239
241
237
246
244
240
242
238
Com-
ponent
Layout
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
57
61
70
71
82
84
92
96
574
Contacts: NC = Normally closed, NO = Normally open
eao.com
§
01/2019
Flush design
Wiring diagrams
1
1
1
3
1
3
1
1
51
01
1
3
02
03
2
2
2
4
2
4
2
2
2
4
04
Wiring diagram 237
Wiring diagram 238
Wiring diagram 239
Wiring diagram 240
Wiring diagram 241
Wiring diagram 242
Wiring diagram 243
1
3
1
3
1
3
1
I
3
1
I
3
1
I
3
1
II
3
09
14
2
4
2
4
2
4
2
4
2
4
2
4
2
4
17
18
19
22
Wiring diagram 244
Wiring diagram 245
Wiring diagram 246
Wiring diagram 247
Wiring diagram 250
Wiring diagram 251
1
I
3
1
II
3
1
I
3
1
II
3
1
III
3
1
I
3
1
II
3
1
III
3
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
31
Wiring diagram 252
Wiring diagram 253
Wiring diagram 254
1
I
3
1
II
3
1
III
3
1
IV
3
1
I
3
1
II
3
1
III
3
1
IV
3
41
45
2
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
51
56
57
61
70
71
82
84
92
96
Wiring diagram 255
Wiring diagram 256
01/2019
§
eao.com
575
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