Electromechanical – Mouser United Kingdom

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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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Types of Electromechanical

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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

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Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-235.022D
EAO
1: £81.50
34In Stock Restricted Availability
27On 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

34In Stock

27On Order

£81.50

£72.90

£69.65

£68.32

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Min.: 1
Mult.: 1

Restricted Availability

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

51-252.026
EAO
1: £37.73
83In 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

83In Stock

£37.73

£36.86

£36.60

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK SQ MNT 2POS

51-255.022D
EAO
1: £71.29
37In Stock Restricted Availability

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

37In Stock

£71.29

£68.91

£68.43

£66.64

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Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-235.025D
EAO
1: £65.34
45In Stock Restricted Availability
22On Order

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

45In Stock

22On Order

£65.34

£63.74

£63.42

£62.14

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Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM SLGP QC

51-121.022
EAO
1: £36.62
26In 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

26In Stock

£36.62

£35.69

£35.20

£34.60

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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

£46.12

£45.13

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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

£33.11

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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

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

51-256.026
EAO
1: £31.82
10In 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

10In Stock

£31.82

£31.30

£31.21

£31.09

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Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MNT SLGP QC

51-261.022
EAO
1: £42.07
5In Stock Restricted Availability

Mfr. Part No.
51-261.022

Mouser Part No
123-51-261.022

EAO

Switch Actuators LPB REC MNT SLGP QC

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Datasheet

5In Stock

£42.07

£42.06

£41.03

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR

51-261.025
EAO
1: £36.12
5In Stock Restricted Availability

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

5In Stock

£36.12

£36.11

£35.19

£34.44

View

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

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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 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

£73.04

£71.64

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

£70.01

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MOM GD UNV LL

51-421.036
EAO
1: £36.08
25In Stock Restricted Availability
9Expected 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

25In Stock

9Expected 31/08/2026

£36.08

£36.07

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

£22.74

£22.25

£21.65

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TLT WHT

51-901.9
EAO
1: £3.16
179In 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

179In Stock

£3.16

£3.15

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TPT RED

51-903.2
EAO
1: £3.16
117In 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

117In Stock

£3.16

£3.12

£3.06

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

£3.15

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

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Datasheet

44In Stock

£3.16

£3.15

Min.: 1
Mult.: 1

Restricted Availability

Switch Bezels / Switch Caps LENS REC FLT TPT GRN

51-903.5
EAO
1: £3.79
52In Stock Restricted Availability
111Expected 07/09/2026

Mfr. Part No.
51-903.5

Mouser Part No
123-51-903.5

EAO

Switch Bezels / Switch Caps LENS REC FLT TPT GRN

Learn More

Datasheet

52In Stock

111Expected 07/09/2026

£3.79

£3.65

£3.16

£3.15

View

Min.: 1
Mult.: 1

Restricted Availability

Series 51 Switch Range

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