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 MNT 2POS

51-135.025D
EAO
1: £69.32
22In 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

22In Stock

£69.32

£67.02

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK SQ MNT 2POS

51-255.022D
EAO
1: £62.63
15In 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

15In Stock

£62.63

£57.91

£57.84

Quote

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MOM 3POS

51-378.AD
EAO
1: £108.59
8In 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

8In Stock

£108.59

£93.65

£89.18

£84.38

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Cases / Switch Covers protect COVER-REC

51-925
EAO
1: £5.95
302In Stock

Mfr. Part No.
51-925

Mouser Part No
123-51-925

EAO

Switch Cases / Switch Covers protect COVER-REC

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Datasheet

302In Stock

£5.95

£5.63

£5.45

Quote

Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM SLGP QC

51-121.022
EAO
1: £34.87
20In Stock Restricted Availability
21Expected 16/02/2026

Mfr. Part No.
51-121.022

Mouser Part No
123-51-121.022

EAO

Pushbutton Switches LPB REC MOM SLGP QC

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Datasheet

20In Stock

21Expected 16/02/2026

£34.87

£34.30

£33.95

£32.53

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB REC MOM SLGP SLDR

51-122.025
EAO
1: £45.30
4In Stock Restricted Availability

Mfr. Part No.
51-122.025

Mouser Part No
123-51-122.025

EAO

Pushbutton Switches LPB REC MOM SLGP SLDR

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Datasheet

4In Stock

£45.30

£45.28

£44.23

Quote

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB RND MOM SLGP SLDR

51-131.025
EAO
1: £32.86
8In Stock Restricted Availability

Mfr. Part No.
51-131.025

Mouser Part No
123-51-131.025

EAO

Pushbutton Switches LPB RND MOM SLGP SLDR

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Datasheet

8In Stock

£32.86

£32.02

£31.07

£30.45

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB SQ MOM SLGP QC

51-151.022
EAO
1: £36.62
14In Stock Restricted Availability

Mfr. Part No.
51-151.022

Mouser Part No
123-51-151.022

EAO

Pushbutton Switches LPB SQ MOM SLGP QC

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Datasheet

14In Stock

£36.62

£36.61

£35.57

£34.30

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB SQ MOM SLGP SLDR

51-151.025
EAO
1: £32.08
9In Stock Restricted Availability

Mfr. Part No.
51-151.025

Mouser Part No
123-51-151.025

EAO

Pushbutton Switches LPB SQ MOM SLGP SLDR

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Datasheet

9In Stock

£32.08

£32.07

£31.47

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LPB ACTUATOR REC

51-165.0
EAO
1: £18.59
3In 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

3In 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: £69.01
14In Stock Restricted Availability

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

14In Stock

£69.01

£67.56

£66.37

£66.36

View

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-236.025D
EAO
1: £78.03
4In Stock Restricted Availability

Mfr. Part No.
51-236.025D

Mouser Part No
123-51-236.025D

EAO

Keylock Switches KYLK RND MNT 2POS

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Datasheet

4In Stock

£78.03

£77.82

£76.02

£76.01

View

Min.: 1
Mult.: 1

Restricted Availability

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

51-252.026
EAO
1: £35.46
31In 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

31In Stock

£35.46

£35.05

£35.00

£34.99

View

Min.: 1
Mult.: 1

Restricted Availability

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

51-256.026
EAO
1: £30.91
47In 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

47In Stock

£30.91

£30.63

£29.73

£28.91

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: £48.13
2In 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

2In Stock

£48.13

£48.08

£45.70

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: £43.34
5In 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

5In Stock

£43.34

£36.12

£35.19

£34.43

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches 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

Pushbutton Switches 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

Pushbutton Switches LPB REC MOM GD UNV LL

51-425.036
EAO
1: £21.84
19In Stock Restricted Availability

Mfr. Part No.
51-425.036

Mouser Part No
123-51-425.036

EAO

Pushbutton Switches LPB REC MOM GD UNV LL

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Datasheet

19In Stock

£21.84

£21.43

£21.38

Quote

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TLT WHT

51-901.9
EAO
1: £3.16
304In Stock Restricted Availability

Mfr. Part No.
51-901.9

Mouser Part No
123-51-901.9

EAO

Switch Fixings LENS REC FLT TLT WHT

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Datasheet

304In Stock

£3.16

£3.12

£3.04

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TPT RED

51-903.2
EAO
1: £3.16
36In Stock Restricted Availability
12Expected 16/02/2026

Mfr. Part No.
51-903.2

Mouser Part No
123-51-903.2

EAO

Switch Fixings LENS REC FLT TPT RED

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Datasheet

36In Stock

12Expected 16/02/2026

£3.16

£3.15

£3.09

£2.92

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: £3.16
35In Stock Restricted Availability

Mfr. Part No.
51-903.3

Mouser Part No
123-51-903.3

EAO

Switch Fixings LENS RECT ORANGE TPT ORNG

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Datasheet

35In Stock

£3.16

£3.12

£3.04

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TPT YLW

51-903.4
EAO
1: £3.16
30In Stock Restricted Availability

Mfr. Part No.
51-903.4

Mouser Part No
123-51-903.4

EAO

Switch Fixings LENS REC FLT TPT YLW

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Datasheet

30In Stock

£3.16

£2.99

£2.93

£2.92

£2.91

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TPT GRN

51-903.5
EAO
1: £3.79
20In Stock Restricted Availability
15Expected 28/04/2026

Mfr. Part No.
51-903.5

Mouser Part No
123-51-903.5

EAO

Switch Fixings LENS REC FLT TPT GRN

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Datasheet

20In Stock

15Expected 28/04/2026

£3.79

£3.16

£3.11

£3.05

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TPT BL

51-903.6
EAO
1: £3.16
21In Stock Restricted Availability

Mfr. Part No.
51-903.6

Mouser Part No
123-51-903.6

EAO

Switch Fixings LENS REC FLT TPT BL

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Datasheet

21In Stock

£3.16

£3.12

£3.04

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings ANTIROTATION LOCKING WSHR

51-910
EAO
1: £1.94
150In Stock
160Expected 09/02/2026

Mfr. Part No.
51-910

Mouser Part No
123-51-910

EAO

Switch Fixings ANTIROTATION LOCKING WSHR

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Datasheet

150In Stock

160Expected 09/02/2026

£1.94

£1.93

£1.88

£1.82

£1.78

Min.: 1
Mult.: 1

Series 51 Switch Range

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