.hide-partial { max-height: none; } .show-more { display: none; }

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.

All Results (44)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Keylock Switches KYLK RND MOM 3POS

51-378.AD
EAO
1: NT$4,129.20
7In Stock

Mfr. Part #
51-378.AD

Mouser Part #
123-51-378.AD

EAO

Keylock Switches KYLK RND MOM 3POS

Learn More

Datasheet

7In Stock

NT$4,129.20

NT$3,560.62

NT$3,390.69

NT$3,208.58

View

Min.: 1
Mult.: 1

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

51-252.026
EAO
1: NT$1,434.72
89In Stock

Mfr. Part #
51-252.026

Mouser Part #
123-51-252.026

EAO

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

Learn More

Datasheet

89In Stock

NT$1,434.72

NT$1,401.38

NT$1,391.70

Min.: 1
Mult.: 1

Keylock Switches KYLK SQ MNT 2POS

51-255.022D
EAO
1: NT$2,643.94
37In Stock

Mfr. Part #
51-255.022D

Mouser Part #
123-51-255.022D

EAO

Keylock Switches KYLK SQ MNT 2POS

Learn More

Datasheet

37In Stock

NT$2,643.94

NT$2,484.05

View

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-235.025D
EAO
1: NT$2,484.41
76In Stock
22Expected 8/10/2026

Mfr. Part #
51-235.025D

Mouser Part #
123-51-235.025D

EAO

Keylock Switches KYLK RND MNT 2POS

Learn More

Datasheet

76In Stock

22Expected 8/10/2026

NT$2,484.41

NT$2,423.46

NT$2,411.63

NT$2,362.87

View

Min.: 1
Mult.: 1

Panel Mount Indicator Housings & Hardware IND REC BLK QC

51-040.002
EAO
1: NT$420.88
27In Stock
25Expected 8/10/2026

Mfr. Part #
51-040.002

Mouser Part #
123-51-040.002

EAO

Panel Mount Indicator Housings & Hardware IND REC BLK QC

Learn More

Datasheet

27In Stock

25Expected 8/10/2026

NT$420.88

NT$410.84

NT$391.12

NT$384.67

View

Min.: 1
Mult.: 1

Panel Mount Indicator Housings & Hardware IND REC BLK SLDR

51-040.005
EAO
1: NT$420.88
3In Stock
38On Order

Mfr. Part #
51-040.005

Mouser Part #
123-51-040.005

EAO

Panel Mount Indicator Housings & Hardware IND REC BLK SLDR

Learn More

Datasheet

3In Stock

38On Order

NT$420.88

NT$410.84

NT$391.12

NT$384.67

View

Min.: 1
Mult.: 1

Switch Actuators LPB REC MOM SLGP QC

51-121.022
EAO
1: NT$1,482.04
26In Stock

Mfr. Part #
51-121.022

Mouser Part #
123-51-121.022

EAO

Switch Actuators LPB REC MOM SLGP QC

Learn More

Datasheet

26In Stock

NT$1,482.04

NT$1,363.73

NT$1,361.58

NT$1,336.13

View

Min.: 1
Mult.: 1

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

51-121.025
EAO
1: NT$1,249.37
17In Stock

Mfr. Part #
51-121.025

Mouser Part #
123-51-121.025

EAO

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

Learn More

Datasheet

17In Stock

NT$1,249.37

NT$1,249.01

NT$1,220.69

NT$1,108.12

NT$1,102.39

Min.: 1
Mult.: 1

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

51-122.025
EAO
1: NT$1,799.67
2In Stock

Mfr. Part #
51-122.025

Mouser Part #
123-51-122.025

EAO

Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR

Learn More

Datasheet

2In Stock

NT$1,799.67

NT$1,753.78

NT$1,716.14

NT$1,653.76

Quote

Min.: 1
Mult.: 1

Switch Actuators LPB RND MOM SLGP SLDR

51-131.025
EAO
1: NT$1,249.37
9In Stock

Mfr. Part #
51-131.025

Mouser Part #
123-51-131.025

EAO

Switch Actuators LPB RND MOM SLGP SLDR

Learn More

Datasheet

9In Stock

NT$1,249.37

NT$1,241.49

NT$1,216.75

Quote

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-135.025D
EAO
1: NT$2,842.19
2In Stock

Mfr. Part #
51-135.025D

Mouser Part #
123-51-135.025D

EAO

Keylock Switches KYLK RND MNT 2POS

Learn More

Datasheet

2In Stock

NT$2,842.19

NT$2,841.83

Min.: 1
Mult.: 1

Switch Actuators LPB SQ MOM SLGP SLDR

51-151.025
EAO
1: NT$1,290.96
11In Stock

Mfr. Part #
51-151.025

Mouser Part #
123-51-151.025

EAO

Switch Actuators LPB SQ MOM SLGP SLDR

Learn More

Datasheet

11In Stock

NT$1,290.96

NT$1,290.60

NT$1,263.00

View

Min.: 1
Mult.: 1

Switch Hardware LPB ACTUATOR REC

51-165.0
EAO
1: NT$706.60
51In Stock

Mfr. Part #
51-165.0

Mouser Part #
123-51-165.0

EAO

Switch Hardware LPB ACTUATOR REC

Learn More

Datasheet

51In Stock

NT$706.60

NT$706.25

NT$693.34

NT$668.96

View

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-235.022D
EAO
1: NT$3,098.87
15In Stock
46On Order

Mfr. Part #
51-235.022D

Mouser Part #
123-51-235.022D

EAO

Keylock Switches KYLK RND MNT 2POS

Learn More

Datasheet

15In Stock

46On Order

NT$3,098.87

NT$2,771.92

NT$2,648.24

NT$2,597.69

View

Min.: 1
Mult.: 1

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

51-256.026
EAO
1: NT$1,209.94
20In Stock

Mfr. Part #
51-256.026

Mouser Part #
123-51-256.026

EAO

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

Learn More

Datasheet

20In Stock

NT$1,209.94

NT$1,189.86

NT$1,186.64

NT$1,181.97

View

Min.: 1
Mult.: 1

Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR

51-261.025
EAO
1: NT$1,373.41
5In Stock

Mfr. Part #
51-261.025

Mouser Part #
123-51-261.025

EAO

Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR

Learn More

Datasheet

5In Stock

NT$1,373.41

NT$1,341.51

NT$1,315.70

NT$1,273.39

Quote

Min.: 1
Mult.: 1

Switch Actuators LPB REC MNT SLGP SLDR

51-262.025
EAO
1: NT$1,917.98
5In Stock

Mfr. Part #
51-262.025

Mouser Part #
123-51-262.025

EAO

Switch Actuators LPB REC MNT SLGP SLDR

Learn More

Datasheet

5In Stock

NT$1,917.98

NT$1,877.82

NT$1,838.03

NT$1,799.31

View

Min.: 1
Mult.: 1

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: NT$1,648.02
3In Stock

Mfr. Part #
51-281.025

Mouser Part #
123-51-281.025

EAO

Switch Actuators LPB SQ MNT SLGP SLDR

Learn More

Datasheet

3In Stock

NT$1,648.02

NT$1,373.41

NT$1,337.92

NT$1,309.24

View

Min.: 1
Mult.: 1

Keylock Switches KYLK REC MNT 2POS

51-195.022D
EAO
1: NT$2,710.62
10In Stock

Mfr. Part #
51-195.022D

Mouser Part #
123-51-195.022D

EAO

Keylock Switches KYLK REC MNT 2POS

Learn More

Datasheet

10In Stock

NT$2,710.62

Quote

Min.: 1
Mult.: 1

Switch Actuators LPB REC MOM GD UNV LL

51-421.036
EAO
1: NT$1,371.98
12In Stock
22Expected 8/31/2026

Mfr. Part #
51-421.036

Mouser Part #
123-51-421.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

Learn More

Datasheet

12In Stock

22Expected 8/31/2026

NT$1,371.98

NT$1,371.62

NT$1,347.60

Min.: 1
Mult.: 1

Switch Actuators LPB REC MOM GD UNV LL

51-423.036
EAO
1: NT$1,371.98
1In Stock

Mfr. Part #
51-423.036

Mouser Part #
123-51-423.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

Learn More

Datasheet

1In Stock

NT$1,371.98

NT$1,336.85

NT$1,298.49

NT$1,272.32

Quote

Min.: 1
Mult.: 1

Switch Actuators LPB REC MOM GD UNV LL

51-425.036
EAO
1: NT$880.48
17In Stock

Mfr. Part #
51-425.036

Mouser Part #
123-51-425.036

EAO

Switch Actuators LPB REC MOM GD UNV LL

Learn More

Datasheet

17In Stock

NT$880.48

NT$864.70

NT$846.06

NT$823.12

Quote

Min.: 1
Mult.: 1

Switch Bezels / Switch Caps LENS REC FLT TLT WHT

51-901.9
EAO
1: NT$120.10
209In Stock

Mfr. Part #
51-901.9

Mouser Part #
123-51-901.9

EAO

Switch Bezels / Switch Caps LENS REC FLT TLT WHT

Learn More

Datasheet

209In Stock

NT$120.10

NT$119.74

NT$115.44

NT$111.85

Min.: 1
Mult.: 1

Switch Bezels / Switch Caps LENS REC FLT TPT RED

51-903.2
EAO
1: NT$120.10
120In Stock

Mfr. Part #
51-903.2

Mouser Part #
123-51-903.2

EAO

Switch Bezels / Switch Caps LENS REC FLT TPT RED

Learn More

Datasheet

120In Stock

NT$120.10

NT$119.74

Min.: 1
Mult.: 1

Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: NT$120.10
48In Stock

Mfr. Part #
51-903.3

Mouser Part #
123-51-903.3

EAO

Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG

Learn More

Datasheet

48In Stock

NT$120.10

Min.: 1
Mult.: 1

Series 51 Switch Range

All Results (44)

Customer Service Office

Company

Resources

Support

Series 51 Switch Range

All Results (44)

Electromechanical

Industrial Automation

Optoelectronics