Switches – Mouser Singapore

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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 Switches

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Results: 44

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Part #

Keylock Switches KYLK RND MNT 2POS

51-135.025D
EAO
1: $102.19
22In Stock

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

$102.19

$98.80

Min.: 1
Mult.: 1

Keylock Switches

DPST

Keylock Switches KYLK SQ MNT 2POS

51-255.022D
EAO
1: $92.34
15In Stock

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

$92.34

$85.39

$85.28

Quote

Min.: 1
Mult.: 1

Keylock Switches

DPST

Keylock Switches KYLK RND MOM 3POS

51-378.AD
EAO
1: $160.10
8In Stock

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

$160.10

$138.05

$131.47

$124.41

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Min.: 1
Mult.: 1

Keylock Switches

Switch Cases / Switch Covers protect COVER-REC

51-925
EAO
1: $8.77
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

$8.77

$8.30

$8.03

Quote

Min.: 1
Mult.: 1

Switch Cases / Switch Covers

Protective

Pushbutton Switches LPB REC MOM SLGP QC

51-121.022
EAO
1: $51.40
20In Stock
21Expected 16/2/2026

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 16/2/2026

$51.40

$50.57

$50.05

$47.96

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Min.: 1
Mult.: 1

Pushbutton Switches

DPST

ON - (OFF), OFF - (ON)

Panel Mount

Pushbutton Switches LPB REC MOM SLGP SLDR

51-122.025
EAO
1: $66.79
4In Stock

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

$66.79

$66.76

$65.22

$65.20

Quote

Min.: 1
Mult.: 1

Pushbutton Switches

4PST

ON - (OFF), OFF - (ON)

Panel Mount

Pushbutton Switches LPB RND MOM SLGP SLDR

51-131.025
EAO
1: $48.44
8In Stock

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

$48.44

$47.20

$45.80

$44.90

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Min.: 1
Mult.: 1

Pushbutton Switches

DPST

ON - (OFF), OFF - (ON)

Panel Mount

Pushbutton Switches LPB SQ MOM SLGP QC

51-151.022
EAO
1: $53.99
14In Stock

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

$53.99

$53.97

$52.44

$50.57

View

Min.: 1
Mult.: 1

Pushbutton Switches

DPST

ON - (OFF), OFF - (ON)

Panel Mount

Pushbutton Switches LPB SQ MOM SLGP SLDR

51-151.025
EAO
1: $47.30
9In Stock

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

$47.30

$47.29

$46.40

Quote

Min.: 1
Mult.: 1

Pushbutton Switches

DPST

ON - (OFF), OFF - (ON)

Panel Mount

Switch Fixings LPB ACTUATOR REC

51-165.0
EAO
1: $27.40
3In Stock

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

$27.40

$27.38

$26.88

$25.94

View

Min.: 1
Mult.: 1

Switch Hardware

Keylock Switches KYLK RND MNT 2POS

51-235.022D
EAO
1: $101.73
14In Stock

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

$101.73

$99.61

$97.84

$97.83

View

Min.: 1
Mult.: 1

Keylock Switches

DPST

Keylock Switches KYLK RND MNT 2POS

51-236.025D
EAO
1: $115.04
4In Stock

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

$115.04

$114.73

$112.08

$112.06

View

Min.: 1
Mult.: 1

Keylock Switches

DPST

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

51-252.026
EAO
1: $52.28
31In Stock

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

$52.28

$51.68

$51.60

$51.58

View

Min.: 1
Mult.: 1

Switch Actuators

Panel

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

51-256.026
EAO
1: $45.58
47In Stock

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

$45.58

$45.16

$43.84

$42.62

View

Min.: 1
Mult.: 1

Switch Actuators

Panel

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: $70.96
2In Stock

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

$70.96

$70.88

$67.37

View

Min.: 1
Mult.: 1

Switch Actuators

Maintained, Rectangular

Panel Mount

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: $63.90
5In Stock

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

$63.90

$53.25

$51.87

$50.76

View

Min.: 1
Mult.: 1

Switch Actuators

Maintained, Round

Panel Mount

Pushbutton Switches LPB REC MOM GD UNV LL

51-423.036
EAO
1: $53.20
1In Stock

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

$53.20

$51.83

$50.35

$49.33

Quote

Min.: 1
Mult.: 1

Pushbutton Switches

DPST

OFF - (ON)

Panel Mount

Pushbutton Switches LPB REC MOM GD UNV LL

51-425.036
EAO
1: $32.21
19In Stock

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

$32.21

$31.59

$31.53

Quote

Min.: 1
Mult.: 1

Pushbutton Switches

SPST

OFF - (ON)

Panel Mount

Switch Fixings LENS REC FLT TLT WHT

51-901.9
EAO
1: $4.66
304In Stock

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

$4.66

$4.60

$4.48

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings LENS REC FLT TPT RED

51-903.2
EAO
1: $4.66
36In Stock
12Expected 16/2/2026

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 16/2/2026

$4.66

$4.64

$4.56

$4.30

View

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: $4.66
35In Stock

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

$4.66

$4.60

$4.48

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings LENS REC FLT TPT YLW

51-903.4
EAO
1: $4.66
30In Stock

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

$4.66

$4.42

$4.32

$4.30

$4.28

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings LENS REC FLT TPT GRN

51-903.5
EAO
1: $5.59
20In Stock
15Expected 28/4/2026

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 28/4/2026

$5.59

$4.66

$4.59

$4.49

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings LENS REC FLT TPT BL

51-903.6
EAO
1: $4.66
21In Stock

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

$4.66

$4.60

$4.48

Min.: 1
Mult.: 1

Switch Hardware

Lens

Switch Fixings ANTIROTATION LOCKING WSHR

51-910
EAO
1: $2.86
150In Stock
160Expected 9/2/2026

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 9/2/2026

$2.86

$2.85

$2.77

$2.68

$2.63

Min.: 1
Mult.: 1

Switch Hardware

Locking Washer

Series 51 Switch Range

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