Electromechanical – 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 Electromechanical

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Part #

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 KYLK SQ MNT 2POS

51-255.022D
EAO
1: $92.45
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

$92.45

$85.46

$85.44

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Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM SLGP QC

51-121.022
EAO
1: $53.06
57In Stock

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

57In Stock

$53.06

$51.97

$50.32

$49.71

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Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-235.025D
EAO
1: $95.73
83In Stock

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

83In Stock

$95.73

$95.72

$95.69

$90.27

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Min.: 1
Mult.: 1

Switch Cases / Switch Covers protect COVER-REC

51-925
EAO
1: $8.77
297In Stock
300Expected 30/4/2026

Mfr. Part No.
51-925

Mouser Part No
123-51-925

EAO

Switch Cases / Switch Covers protect COVER-REC

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Datasheet

297In Stock

300Expected 30/4/2026

$8.77

$8.76

$8.73

$8.67

Quote

Min.: 1
Mult.: 1

Switch Actuators IND REC BLK SLDR

51-040.005
EAO
1: $16.32
15In Stock

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

15In Stock

$16.32

$16.24

$15.67

$15.25

Quote

Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM SLGP SLDR

51-121.025
EAO
1: $47.93
17In Stock

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

17In Stock

$47.93

$47.62

$47.33

$47.07

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Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM SLGP SLDR

51-122.025
EAO
1: $68.12
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

$68.12

$68.08

$67.50

$66.61

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Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-135.025D
EAO
1: $110.20
2In 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

2In Stock

$110.20

$110.19

Min.: 1
Mult.: 1

Pushbutton Switches LPB SQ MOM SLGP SLDR

51-151.025
EAO
1: $50.05
15In 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

15In Stock

$50.05

$49.64

$49.39

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-236.025D
EAO
1: $116.72
8In 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

8In Stock

$116.72

$116.55

$113.97

$113.95

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Min.: 1
Mult.: 1

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

51-252.026
EAO
1: $55.63
21In Stock
36Expected 6/4/2026

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

21In Stock

36Expected 6/4/2026

$55.63

Min.: 1
Mult.: 1

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

51-256.026
EAO
1: $46.91
22In 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

22In Stock

$46.91

$45.62

$45.30

$44.83

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Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MNT SLGP SLDR

51-261.025
EAO
1: $53.25
3In Stock

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

3In Stock

$53.25

$52.26

$51.42

$50.72

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Min.: 1
Mult.: 1

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: $73.31
5In 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

5In Stock

$73.31

$73.28

$73.17

$72.42

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Min.: 1
Mult.: 1

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: $63.90
3In 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

3In Stock

$63.90

$53.25

$51.87

$50.76

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Min.: 1
Mult.: 1

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 LPB REC MOM GD UNV LL

51-425.036
EAO
1: $34.14
7In Stock
10Expected 6/4/2026

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

7In Stock

10Expected 6/4/2026

$34.14

$33.47

$33.44

Quote

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TLT WHT

51-901.9
EAO
1: $4.66
149In Stock
110Expected 8/6/2026

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

149In Stock

110Expected 8/6/2026

$4.66

$4.64

$4.43

$4.32

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TPT RED

51-903.2
EAO
1: $4.66
69In Stock
70Expected 14/4/2026

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

69In Stock

70Expected 14/4/2026

$4.66

$4.64

$4.60

$4.53

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Min.: 1
Mult.: 1

Switch Fixings LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: $4.66
13In Stock
35Expected 13/4/2026

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

13In Stock

35Expected 13/4/2026

$4.66

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TPT YLW

51-903.4
EAO
1: $4.66
32In Stock
35Expected 13/4/2026

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

32In Stock

35Expected 13/4/2026

$4.66

$4.63

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TPT GRN

51-903.5
EAO
1: $4.66
3In Stock
76Expected 11/5/2026

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

3In Stock

76Expected 11/5/2026

$4.66

$4.60

$4.59

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TPT BL

51-903.6
EAO
1: $4.66
10In 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

10In Stock

$4.66

$4.60

$4.48

Min.: 1
Mult.: 1

Switch Fixings LENS REC FLT TPT CLR

51-903.7
EAO
1: $4.66
28In Stock

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

28In Stock

$4.66

$4.64

$4.63

$4.61

Min.: 1
Mult.: 1

Series 51 Switch Range

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