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

Series 51 Electromechanical

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Electromechanical

List Images

Results: 288

Applied Filters:

Tradename = Series 51

Reset All

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 IND RND BLK UNV LL

51-196.025D
EAO
1: $125.24
5In Stock

Mfr. Part #
51-196.025D

Mouser Part #
123-51-196.025D

EAO

Keylock Switches IND RND BLK UNV LL

Datasheet

5In Stock

$125.24

$125.19

$122.25

$122.23

View

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-235.022D
EAO
1: $112.35
14In Stock

Mfr. Part #
51-235.022D

Mouser Part #
123-51-235.022D

EAO

Keylock Switches KYLK RND MNT 2POS

Learn More

Datasheet

14In Stock

$112.35

$110.00

$108.05

$108.03

View

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MNT 2POS

51-236.025D
EAO
1: $127.04
4In Stock
15Expected 2026-02-27

Mfr. Part #
51-236.025D

Mouser Part #
123-51-236.025D

EAO

Keylock Switches KYLK RND MNT 2POS

Learn More

Datasheet

4In Stock

15Expected 2026-02-27

$127.04

$126.70

$123.77

$123.75

View

Min.: 1
Mult.: 1

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

51-252.026
EAO
1: $57.73
31In 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

31In Stock

$57.73

$57.07

$56.98

$56.96

View

Min.: 1
Mult.: 1

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

51-256.026
EAO
1: $50.33
22In 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

22In Stock

$50.33

$49.87

$48.41

$47.06

View

Min.: 1
Mult.: 1

Switch Actuators 16mm, STP SWTC,

51-259.025
EAO
1: $57.82
38In Stock

Mfr. Part #
51-259.025

Mouser Part #
123-51-259.025

EAO

Switch Actuators 16mm, STP SWTC,

Learn More

Datasheet

38In Stock

$57.82

$57.32

$55.44

$55.41

View

Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MNT SLGP SLDR

51-261.025
EAO
1: $58.81
3In Stock

Mfr. Part #
51-261.025

Mouser Part #
123-51-261.025

EAO

Pushbutton Switches LPB REC MNT SLGP SLDR

Learn More

Datasheet

3In Stock

$58.81

$57.29

$56.06

$54.97

View

Min.: 1
Mult.: 1

Switch Actuators KYLK SQ MNT 2POS

51-281.022F
EAO
1: $67.48
2In Stock

Mfr. Part #
51-281.022F

Mouser Part #
123-51-281.022F

EAO

Switch Actuators KYLK SQ MNT 2POS

Datasheet

2In Stock

$67.48

$65.74

$63.92

$62.66

View

Min.: 1
Mult.: 1

Switch Actuators LPB SQ MNT SLGP SLDR

51-281.025
EAO
1: $70.56
5In Stock

Mfr. Part #
51-281.025

Mouser Part #
123-51-281.025

EAO

Switch Actuators LPB SQ MNT SLGP SLDR

Learn More

Datasheet

5In Stock

$70.56

$58.81

$57.29

$56.06

View

Min.: 1
Mult.: 1

Keylock Switches LPB REC MNT SPST LL

51-295.022D
EAO
1: $108.75
1In Stock

Mfr. Part #
51-295.022D

Mouser Part #
123-51-295.022D

EAO

Keylock Switches LPB REC MNT SPST LL

Datasheet

1In Stock

$108.75

$108.71

$106.48

$106.47

View

Min.: 1
Mult.: 1

Keylock Switches KYLK RND MOM 3POS DPST 5A 250VAC Solder Lug Flat Key 90 deg Index 3 Positions Gold Plate Non Illuminated

51-378.F22D
EAO
1: $158.37
9In Stock

Mfr. Part #
51-378.F22D

Mouser Part #
123-51-378.F22D

EAO

Keylock Switches KYLK RND MOM 3POS DPST 5A 250VAC Solder Lug Flat Key 90 deg Index 3 Positions Gold Plate Non Illuminated

Datasheet

9In Stock

$158.37

$155.08

$150.61

$147.61

View

Min.: 1
Mult.: 1

Keylock Switches LENS REC CCVE ORNG

51-415.036D
EAO
1: $113.59
7In Stock

Mfr. Part #
51-415.036D

Mouser Part #
123-51-415.036D

EAO

Keylock Switches LENS REC CCVE ORNG

Datasheet

7In Stock

$113.59

$113.56

$107.47

$107.45

View

Min.: 1
Mult.: 1

Pushbutton Switches CNT ELE1NCRE

51-422.036
EAO
1: $61.91
1In Stock

Mfr. Part #
51-422.036

Mouser Part #
123-51-422.036

EAO

Pushbutton Switches CNT ELE1NCRE

Datasheet

1In Stock

$61.91

$60.31

$59.02

$57.85

Quote

Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM GD UNV LL

51-423.036
EAO
1: $58.74
1In Stock

Mfr. Part #
51-423.036

Mouser Part #
123-51-423.036

EAO

Pushbutton Switches LPB REC MOM GD UNV LL

Learn More

Datasheet

1In Stock

$58.74

$57.24

$55.60

$54.48

Quote

Min.: 1
Mult.: 1

Pushbutton Switches LPB REC MOM GD UNV LL

51-425.036
EAO
1: $35.57
19In Stock

Mfr. Part #
51-425.036

Mouser Part #
123-51-425.036

EAO

Pushbutton Switches LPB REC MOM GD UNV LL

Learn More

Datasheet

19In Stock

$35.57

$34.89

$34.81

Quote

Min.: 1
Mult.: 1

Pushbutton Switches KYLK REC POS MNT LL

51-453.036
EAO
1: $58.74
2In Stock

Mfr. Part #
51-453.036

Mouser Part #
123-51-453.036

EAO

Pushbutton Switches KYLK REC POS MNT LL

Datasheet

2In Stock

$58.74

$57.24

$55.60

$53.57

View

Min.: 1
Mult.: 1

Pushbutton Switches ACTUPBNIMOFLB

51-455.036
EAO
1: $37.70
5In Stock

Mfr. Part #
51-455.036

Mouser Part #
123-51-455.036

EAO

Pushbutton Switches ACTUPBNIMOFLB

Datasheet

5In Stock

$37.70

$36.95

$36.06

$35.24

Quote

Min.: 1
Mult.: 1

Pushbutton Switches LPB SQ MOM SLGP SLDR

51-483.036
EAO
1: $67.48
4In Stock

Mfr. Part #
51-483.036

Mouser Part #
123-51-483.036

EAO

Pushbutton Switches LPB SQ MOM SLGP SLDR

Datasheet

4In Stock

$67.48

$65.74

$63.92

$62.66

View

Min.: 1
Mult.: 1

Switch Hardware LED T1-34 6V 6-CHIP

51-901.2
EAO
1: $5.14
19In Stock
18On Order

Mfr. Part #
51-901.2

Mouser Part #
123-51-901.2

EAO

Switch Hardware LED T1-34 6V 6-CHIP

Datasheet

19In Stock

18On Order

$5.14

$5.08

$4.94

Min.: 1
Mult.: 1

Switch Hardware LVR-ROTARY MNT GD LL

51-901.5
EAO
1: $4.91
13In Stock

Mfr. Part #
51-901.5

Mouser Part #
123-51-901.5

EAO

Switch Hardware LVR-ROTARY MNT GD LL

Datasheet

13In Stock

$4.91

$4.80

Min.: 1
Mult.: 1

Switch Hardware LPB REC MOM SLVR QC

51-901.6
EAO
1: $5.14
49In Stock

Mfr. Part #
51-901.6

Mouser Part #
123-51-901.6

EAO

Switch Hardware LPB REC MOM SLVR QC

Datasheet

49In Stock

$5.14

$5.08

$4.94

Min.: 1
Mult.: 1

Switch Hardware LENS REC FLT TLT WHT

51-901.9
EAO
1: $5.14
304In Stock

Mfr. Part #
51-901.9

Mouser Part #
123-51-901.9

EAO

Switch Hardware LENS REC FLT TLT WHT

Learn More

Datasheet

304In Stock

$5.14

$5.08

$4.94

Min.: 1
Mult.: 1

Switch Hardware LENS RND FLAT RED

51-903.1
EAO
1: $5.14
19In Stock

Mfr. Part #
51-903.1

Mouser Part #
123-51-903.1

EAO

Switch Hardware LENS RND FLAT RED

Datasheet

19In Stock

$5.14

$5.08

$4.94

Min.: 1
Mult.: 1

Switch Hardware LENS REC FLT TPT RED

51-903.2
EAO
1: $5.14
22In Stock
60Expected 2026-04-06

Mfr. Part #
51-903.2

Mouser Part #
123-51-903.2

EAO

Switch Hardware LENS REC FLT TPT RED

Learn More

Datasheet

22In Stock

60Expected 2026-04-06

$5.14

$5.13

$5.03

$4.74

View

Min.: 1
Mult.: 1

Switch Hardware LENS RECT ORANGE TPT ORNG

51-903.3
EAO
1: $5.14
17In Stock

Mfr. Part #
51-903.3

Mouser Part #
123-51-903.3

EAO

Switch Hardware LENS RECT ORANGE TPT ORNG

Learn More

Datasheet

17In Stock

$5.14

$5.08

$4.94

Min.: 1
Mult.: 1

Series 51 Electromechanical

Types of Electromechanical

Mouser Electronics®

Company

Resources

Support