Switch Accessories – 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 Switch Accessories

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Part #

Switch Cases / Switch Covers protect COVER-REC

51-925
EAO
1: £5.95
274In 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

274In Stock

£5.95

£5.63

£5.45

Quote

Min.: 1
Mult.: 1

Covers

Protective

16 mm Switches

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

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

Actuators

Stop Switches

Panel

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

Actuators

Stop Switches

Panel

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

Actuators

Maintained, Round

Panel Mount

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

Indicators

Lens

Pushbutton Switches

51 Series

Switch Fixings LENS REC FLT TPT RED

51-903.2
EAO
1: £3.16
34In 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

34In Stock

12Expected 16/02/2026

£3.16

£3.15

£3.09

£2.92

View

Min.: 1
Mult.: 1

Restricted Availability

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

Switch Fixings LENS REC FLT TPT YLW

51-903.4
EAO
1: £3.16
20In 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

20In Stock

£3.16

£2.99

£2.93

£2.92

£2.91

Min.: 1
Mult.: 1

Restricted Availability

Indicators

Lens

Pushbutton Switches

51 Series

Switch Fixings LENS REC FLT TPT GRN

51-903.5
EAO
1: £3.79
10In 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

10In Stock

15Expected 28/04/2026

£3.79

£3.16

£3.11

£3.05

Min.: 1
Mult.: 1

Restricted Availability

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

Switch Fixings ANTIROTATION LOCKING WSHR

51-910
EAO
1: £1.94
125In Stock
160Expected 19/02/2026

Mfr. Part No.
51-910

Mouser Part No
123-51-910

EAO

Switch Fixings ANTIROTATION LOCKING WSHR

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Datasheet

125In Stock

160Expected 19/02/2026

£1.94

£1.93

£1.88

£1.82

£1.78

Min.: 1
Mult.: 1

Hardware

Locking Washer

Keylock, Selector Switch

51 Series

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

Covers

Protective

16 mm Switches

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

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

Switch Actuators IND REC BLK SLDR

51-040.005
EAO
1: £11.07
16Expected 19/02/2026

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 19/02/2026

£11.07

£11.01

£10.62

£10.35

Quote

Min.: 1
Mult.: 1

Restricted Availability

Indicators

Indicator Actuator

Pushbutton Switches

51 Series

Panel Mount

Switch Fixings LENS REC FLT TPT CLR

51-903.7
EAO
1: £3.16
30Expected 19/02/2026

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 19/02/2026

£3.16

£2.99

£2.96

Min.: 1
Mult.: 1

Restricted Availability

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Lens

Pushbutton Switches

51 Series

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

Indicators

Indicator Actuator

Pushbutton Switches

51 Series

Panel Mount

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: £48.13
Non-Stocked Lead-Time 3 Weeks 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

Non-Stocked Lead-Time 3 Weeks

£48.13

£48.08

£45.70

View

Min.: 1
Mult.: 1

Restricted Availability

Actuators

Maintained, Rectangular

Illuminated Pushbuttons

31 Series

Panel Mount

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

Indicators

Indicator Actuator

Pushbutton Switches

51 Series

Panel Mount

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

Learn More

Datasheet

N/A

£50.44

£49.27

£48.10

£47.15

View

Min.: 1
Mult.: 1

Restricted Availability

Standard Switches

Maintained, Square

Panel Mount

Series 51 Switch Range

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