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Series 51 Switch Range

EAO Series 51 Switch Range is an oil and watertight, high-quality switch range that includes pushbuttons, indicators, illuminated selector switches, key locks, and "mono-block" stop switches. It is possible to choose up to 4NO/4NC snap-action switching elements per switch and low-level switching elements are also available. Both standard panel-mount (16mm cut-out) and flush-mount (22.5mm cut-out) styles are available from EAO.

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Part #

Keylock Switches KYLK RND MOM 3POS

51-378.AD
EAO
1: £108.59
7In Stock Restricted Availability

Mfr. Part No.
51-378.AD

Mouser Part No
123-51-378.AD

EAO

Keylock Switches KYLK RND MOM 3POS

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Datasheet

7In Stock

£108.59

£93.65

£89.18

£84.38

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators STP SWTC W-ANTI TWIST RELEASE 2N.C

51-252.026
EAO
1: £37.73
89In Stock Restricted Availability

Mfr. Part No.
51-252.026

Mouser Part No
123-51-252.026

EAO

Switch Actuators STP SWTC W-ANTI TWIST RELEASE 2N.C

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Datasheet

89In Stock

£37.73

£36.86

£36.60

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK SQ MNT 2POS

51-255.022D
EAO
1: £69.53
13In Stock Restricted Availability
24Expected 29/07/2026

Mfr. Part No.
51-255.022D

Mouser Part No
123-51-255.022D

EAO

Keylock Switches KYLK SQ MNT 2POS

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Datasheet

13In Stock

24Expected 29/07/2026

£69.53

£65.33

View

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-235.025D
EAO
1: £65.34
76In Stock Restricted Availability
22Expected 11/09/2026

Mfr. Part No.
51-235.025D

Mouser Part No
123-51-235.025D

EAO

Keylock Switches KYLK RND MNT 2POS

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Datasheet

76In Stock

22Expected 11/09/2026

£65.34

£63.74

£63.42

£62.14

View

Min.: 1
Mult.: 1

Restricted Availability

Panel Mount Indicator Housings & Hardware IND REC BLK QC

51-040.002
EAO
1: £11.07
27In Stock Restricted Availability
25Expected 17/08/2026

Mfr. Part No.
51-040.002

Mouser Part No
123-51-040.002

EAO

Panel Mount Indicator Housings & Hardware IND REC BLK QC

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Datasheet

27In Stock

25Expected 17/08/2026

£11.07

£10.81

£10.28

£10.12

View

Min.: 1
Mult.: 1

Restricted Availability

Panel Mount Indicator Housings & Hardware IND REC BLK SLDR

51-040.005
EAO
1: £11.07
3In Stock Restricted Availability
38Expected 27/07/2026

Mfr. Part No.
51-040.005

Mouser Part No
123-51-040.005

EAO

Panel Mount Indicator Housings & Hardware IND REC BLK SLDR

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Datasheet

3In Stock

38Expected 27/07/2026

£11.07

£11.06

£11.03

£10.82

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Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM SLGP QC

51-121.022
EAO
1: £38.98
50In Stock Restricted Availability

Mfr. Part No.
51-121.022

Mouser Part No
123-51-121.022

EAO

Switch Actuators LPB REC MOM SLGP QC

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Datasheet

50In Stock

£38.98

£35.86

£35.81

£35.14

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

51-121.025
EAO
1: £32.86
17In Stock Restricted Availability

Mfr. Part No.
51-121.025

Mouser Part No
123-51-121.025

EAO

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

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Datasheet

17In Stock

£32.86

£32.85

£32.10

£29.14

£28.99

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

51-122.025
EAO
1: £47.33
2In Stock Restricted Availability

Mfr. Part No.
51-122.025

Mouser Part No
123-51-122.025

EAO

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

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Datasheet

2In Stock

£47.33

£46.34

£45.36

£44.41

View

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-135.025D
EAO
1: £74.75
2In Stock Restricted Availability

Mfr. Part No.
51-135.025D

Mouser Part No
123-51-135.025D

EAO

Keylock Switches KYLK RND MNT 2POS

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Datasheet

2In Stock

£74.75

£74.74

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB SQ MOM SLGP SLDR

51-151.025
EAO
1: £33.95
11In Stock Restricted Availability

Mfr. Part No.
51-151.025

Mouser Part No
123-51-151.025

EAO

Switch Actuators LPB SQ MOM SLGP SLDR

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Datasheet

11In Stock

£33.95

£33.94

£33.22

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LPB ACTUATOR REC

51-165.0
EAO
1: £18.59
51In Stock Restricted Availability

Mfr. Part No.
51-165.0

Mouser Part No
123-51-165.0

EAO

Switch Fixings LPB ACTUATOR REC

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Datasheet

51In Stock

£18.59

£18.58

£18.24

£17.59

£17.36

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-235.022D
EAO
1: £72.72
19In Stock Restricted Availability
46On Order

Mfr. Part No.
51-235.022D

Mouser Part No
123-51-235.022D

EAO

Keylock Switches KYLK RND MNT 2POS

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Datasheet

19In Stock

46On Order

£72.72

£70.16

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators STP SWTC W-ANTI TWIST RELEASE 1N.C

51-256.026
EAO
1: £31.82
22In Stock Restricted Availability

Mfr. Part No.
51-256.026

Mouser Part No
123-51-256.026

EAO

Switch Actuators STP SWTC W-ANTI TWIST RELEASE 1N.C

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Datasheet

22In Stock

£31.82

£31.30

£31.21

£31.09

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR

51-261.025
EAO
1: £36.12
5On Order

Mfr. Part No.
51-261.025

Mouser Part No
123-51-261.025

EAO

Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR

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Datasheet

5On Order

£36.12

£35.28

£34.61

£33.49

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: £50.44
5In Stock Restricted Availability

Mfr. Part No.
51-262.025

Mouser Part No
123-51-262.025

EAO

Switch Actuators LPB REC MNT SLGP SLDR

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Datasheet

5In Stock

£50.44

£49.39

£48.34

£47.33

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: £43.34
3In Stock Restricted Availability

Mfr. Part No.
51-281.025

Mouser Part No
123-51-281.025

EAO

Switch Actuators LPB SQ MNT SLGP SLDR

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Datasheet

3In Stock

£43.34

£36.12

£35.19

£34.43

View

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK REC MNT 2POS

51-195.022D
EAO
1: £71.29
10In Stock Restricted Availability

Mfr. Part No.
51-195.022D

Mouser Part No
123-51-195.022D

EAO

Keylock Switches KYLK REC MNT 2POS

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Datasheet

10In Stock

£71.29

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM GD UNV LL

51-421.036
EAO
1: £36.08
20In Stock Restricted Availability
22Expected 31/08/2026

Mfr. Part No.
51-421.036

Mouser Part No
123-51-421.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

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Datasheet

20In Stock

22Expected 31/08/2026

£36.08

£35.74

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM GD UNV LL

51-423.036
EAO
1: £36.08
1In Stock Restricted Availability

Mfr. Part No.
51-423.036

Mouser Part No
123-51-423.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

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Datasheet

1In Stock

£36.08

£35.16

£34.15

£33.46

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM GD UNV LL

51-425.036
EAO
1: £23.15
17In Stock Restricted Availability

Mfr. Part No.
51-425.036

Mouser Part No
123-51-425.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

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Datasheet

17In Stock

£23.15

£23.14

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TLT WHT

51-901.9
EAO
1: £3.16
229In Stock Restricted Availability

Mfr. Part No.
51-901.9

Mouser Part No
123-51-901.9

EAO

Switch Bezels / Switch Caps LENS REC FLT TLT WHT

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Datasheet

229In Stock

£3.16

£3.15

£3.04

£2.94

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TPT RED

51-903.2
EAO
1: £3.16
132In Stock Restricted Availability

Mfr. Part No.
51-903.2

Mouser Part No
123-51-903.2

EAO

Switch Bezels / Switch Caps LENS REC FLT TPT RED

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Datasheet

132In Stock

£3.16

£3.15

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: £3.16
48In Stock Restricted Availability

Mfr. Part No.
51-903.3

Mouser Part No
123-51-903.3

EAO

Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG

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Datasheet

48In Stock

£3.16

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TPT YLW

51-903.4
EAO
1: £3.16
44In Stock Restricted Availability

Mfr. Part No.
51-903.4

Mouser Part No
123-51-903.4

EAO

Switch Bezels / Switch Caps LENS REC FLT TPT YLW

Learn More

Datasheet

44In Stock

£3.16

£3.15

Min.: 1
Mult.: 1

Restricted Availability

Series 51 Switch Range

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Series 51 Switch Range

All Results (44)

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