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 #

Switch Cases / Switch Covers protect COVER-SQ

51-920
EAO
1: £5.95
85In Stock

Mfr. Part No.
51-920

Mouser Part No
123-51-920

EAO

Switch Cases / Switch Covers protect COVER-SQ

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Datasheet

85In Stock

£5.95

£5.73

£5.58

Quote

Min.: 1
Mult.: 1

Switch Fixings LENS RND FLT TPT RED

51-933.2
EAO
1: £3.95
15In Stock Restricted Availability

Mfr. Part No.
51-933.2

Mouser Part No
123-51-933.2

EAO

Switch Fixings LENS RND FLT TPT RED

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Datasheet

15In Stock

£3.95

£3.86

£3.76

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS RND FLT TPT GRN

51-933.5
EAO
1: £3.16
35In Stock Restricted Availability

Mfr. Part No.
51-933.5

Mouser Part No
123-51-933.5

EAO

Switch Fixings LENS RND FLT TPT GRN

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Datasheet

35In Stock

£3.16

£3.12

£3.04

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS SQ FLT TPT RED

51-953.2
EAO
1: £3.68
201In Stock Restricted Availability

Mfr. Part No.
51-953.2

Mouser Part No
123-51-953.2

EAO

Switch Fixings LENS SQ FLT TPT RED

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Datasheet

201In Stock

£3.68

£3.61

£3.52

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS SQ FLT TPT CLR

51-953.7
EAO
1: £3.68
143In Stock Restricted Availability

Mfr. Part No.
51-953.7

Mouser Part No
123-51-953.7

EAO

Switch Fixings LENS SQ FLT TPT CLR

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Datasheet

143In Stock

£3.68

£3.64

£3.46

£3.34

£3.29

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

£69.46

£67.73

£65.27

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC CCVE TPT CLR

51-904.7
EAO
1: £3.16
20In Stock Restricted Availability

Mfr. Part No.
51-904.7

Mouser Part No
123-51-904.7

EAO

Switch Fixings LENS REC CCVE TPT CLR

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Datasheet

20In Stock

£3.16

£3.12

£3.04

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators IND REC BLK SLDR

51-040.005
EAO
1: £11.07
16Expected 09/02/2026

Mfr. Part No.
51-040.005

Mouser Part No
123-51-040.005

EAO

Switch Actuators IND REC BLK SLDR

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Datasheet

16Expected 09/02/2026

£11.07

£11.01

£10.62

£10.35

Quote

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB REC MOM SLGP SLDR

51-121.025
EAO
1: £31.77
20Expected 16/02/2026

Mfr. Part No.
51-121.025

Mouser Part No
123-51-121.025

EAO

Pushbutton Switches LPB REC MOM SLGP SLDR

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Datasheet

20Expected 16/02/2026

£31.77

£31.08

£30.44

£29.86

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB REC MNT SLGP SLDR

51-261.025
EAO
1: £36.12
3Expected 13/02/2026

Mfr. Part No.
51-261.025

Mouser Part No
123-51-261.025

EAO

Pushbutton Switches LPB REC MNT SLGP SLDR

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Datasheet

3Expected 13/02/2026

£36.12

£35.19

£34.43

£33.76

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB REC MOM GD UNV LL

51-421.036
EAO
1: £34.04
5Expected 16/03/2026

Mfr. Part No.
51-421.036

Mouser Part No
123-51-421.036

EAO

Pushbutton Switches LPB REC MOM GD UNV LL

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Datasheet

5Expected 16/03/2026

£34.04

£34.03

£33.46

£33.45

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS REC FLT TPT CLR

51-903.7
EAO
1: £3.16
30Expected 09/02/2026

Mfr. Part No.
51-903.7

Mouser Part No
123-51-903.7

EAO

Switch Fixings LENS REC FLT TPT CLR

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Datasheet

30Expected 09/02/2026

£3.16

£2.99

£2.96

Min.: 1
Mult.: 1

Restricted Availability

Switch Fixings LENS SQ FLT TPT GRN

51-953.5
EAO
1: £3.68
77Expected 26/03/2026

Mfr. Part No.
51-953.5

Mouser Part No
123-51-953.5

EAO

Switch Fixings LENS SQ FLT TPT GRN

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Datasheet

77Expected 26/03/2026

£3.68

£3.61

£3.52

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators IND REC BLK QC

51-040.002
EAO
1: £10.59
6Expected 23/03/2026

Mfr. Part No.
51-040.002

Mouser Part No
123-51-040.002

EAO

Switch Actuators IND REC BLK QC

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Datasheet

6Expected 23/03/2026

£10.59

£10.03

£10.02

£9.93

£9.92

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators IND SQ BLK SLDR

51-050.005
EAO
1: £11.07
Lead-Time 13 Weeks Restricted Availability

Mfr. Part No.
51-050.005

Mouser Part No
123-51-050.005

EAO

Switch Actuators IND SQ BLK SLDR

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Datasheet

Lead-Time 13 Weeks

£11.07

£11.01

£10.62

£10.35

Quote

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KYLK RND MNT 2POS

51-235.025D
EAO
1: £64.00
Lead-Time 14 Weeks Restricted Availability

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

Lead-Time 14 Weeks

£64.00

£56.02

View

Min.: 1
Mult.: 1

Restricted Availability

Pushbutton Switches LPB REC MNT SLGP QC

51-261.022
EAO
1: £42.07
Non-Stocked Restricted Availability

Mfr. Part No.
51-261.022

Mouser Part No
123-51-261.022

EAO

Pushbutton Switches LPB REC MNT SLGP QC

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Datasheet

Non-Stocked

£42.07

£40.99

£39.85

£39.06

View

Min.: 1
Mult.: 1

Restricted Availability

Switch Actuators LPB SQ MNT SLGP SLDR

51-282.025
EAO
1: £50.44
N/A Restricted Availability

Mfr. Part No.
51-282.025

Mouser Part No
123-51-282.025

EAO

Switch Actuators LPB SQ MNT SLGP SLDR

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Datasheet

N/A

£50.44

£49.27

£48.10

£47.15

View

Min.: 1
Mult.: 1

Restricted Availability

Keylock Switches KEYLOCK RECT MNT 2POS

51-296.025D
EAO
1: £80.61
Non-Stocked Restricted Availability

Mfr. Part No.
51-296.025D

Mouser Part No
123-51-296.025D

EAO

Keylock Switches KEYLOCK RECT MNT 2POS

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Datasheet

Non-Stocked

£80.61

£78.56

£76.88

£75.36

View

Min.: 1
Mult.: 1

Restricted Availability

Series 51 Switch Range

Types of Electromechanical

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