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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PLN) Filter the results in the table by unit price based on your quantity.	Qty.
Switch Fixings LPB ACTUATOR REC 51-165.0 EAO 1: 93,68 zł 51In Stock Restricted Availability	Mfr. Part No. 51-165.0 Mouser Part No 123-51-165.0	EAO	Switch Fixings LPB ACTUATOR REC Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	51In Stock	93,68 zł 93,63 zł 92,66 zł 90,86 zł View 90,24 zł Quote	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK RND MOM 3POS 51-378.AD EAO 1: 547,32 zł 7In Stock Restricted Availability	Mfr. Part No. 51-378.AD Mouser Part No 123-51-378.AD	EAO	Keylock Switches KYLK RND MOM 3POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	7In Stock	547,32 zł 471,99 zł 449,46 zł 432,52 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB SQ MOM SLGP QC 51-151.022 EAO 1: 184,58 zł 75In Stock Restricted Availability	Mfr. Part No. 51-151.022 Mouser Part No 123-51-151.022	EAO	Switch Actuators LPB SQ MOM SLGP QC Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	75In Stock	184,58 zł	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK RND MNT 2POS 51-235.022D EAO 1: 359,30 zł 61In Stock Restricted Availability	Mfr. Part No. 51-235.022D Mouser Part No 123-51-235.022D	EAO	Keylock Switches KYLK RND MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	61In Stock	359,30 zł 342,80 zł 332,77 zł Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK RND MNT 2POS 51-236.025D EAO 1: 406,30 zł 29In Stock Restricted Availability	Mfr. Part No. 51-236.025D Mouser Part No 123-51-236.025D	EAO	Keylock Switches KYLK RND MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	29In Stock	406,30 zł 396,97 zł 389,40 zł 376,77 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators STP SWTC W-ANTI TWIST RELEASE 2N.C 51-252.026 EAO 1: 190,17 zł 75In 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 Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	75In Stock	190,17 zł 189,68 zł 184,05 zł 182,56 zł	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK SQ MNT 2POS 51-255.022D EAO 1: 359,30 zł 34In Stock Restricted Availability	Mfr. Part No. 51-255.022D Mouser Part No 123-51-255.022D	EAO	Keylock Switches KYLK SQ MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	34In Stock	359,30 zł 347,29 zł 345,53 zł 336,69 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK RND MNT 2POS 51-235.025D EAO 1: 329,30 zł 37In Stock Restricted Availability 32Expected 12/18/2026	Mfr. Part No. 51-235.025D Mouser Part No 123-51-235.025D	EAO	Keylock Switches KYLK RND MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	37In Stock 32Expected 12/18/2026	329,30 zł 328,50 zł 318,52 zł 314,16 zł View 305,58 zł Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Cases / Switch Covers protect COVER-REC 51-925 EAO 1: 29,96 zł 604In Stock	Mfr. Part No. 51-925 Mouser Part No 123-51-925	EAO	Switch Cases / Switch Covers protect COVER-REC Learn More about EAO series 51 switches	Datasheet	604In Stock	29,96 zł	Min.: 1 Mult.: 1
Switch Actuators LPB REC MOM SLGP QC 51-121.022 EAO 1: 184,58 zł 37In Stock Restricted Availability	Mfr. Part No. 51-121.022 Mouser Part No 123-51-121.022	EAO	Switch Actuators LPB REC MOM SLGP QC Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	37In Stock	184,58 zł 180,31 zł 180,22 zł 176,66 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR 51-121.025 EAO 1: 165,62 zł 16In Stock Restricted Availability	Mfr. Part No. 51-121.025 Mouser Part No 123-51-121.025	EAO	Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	16In Stock	165,62 zł 163,81 zł 159,15 zł 148,68 zł 146,12 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB SQ MOM SLGP SLDR 51-151.025 EAO 1: 171,12 zł 11In Stock Restricted Availability	Mfr. Part No. 51-151.025 Mouser Part No 123-51-151.025	EAO	Switch Actuators LPB SQ MOM SLGP SLDR Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	11In Stock	171,12 zł 167,42 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators STP SWTC W-ANTI TWIST RELEASE 1N.C 51-256.026 EAO 1: 160,38 zł 14In 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 Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	14In Stock	160,38 zł 158,44 zł 156,68 zł 141,50 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB REC MNT SLGP QC 51-261.022 EAO 1: 212,04 zł 4In Stock Restricted Availability	Mfr. Part No. 51-261.022 Mouser Part No 123-51-261.022	EAO	Switch Actuators LPB REC MNT SLGP QC Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	4In Stock	212,04 zł 211,99 zł 207,42 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR 51-261.025 EAO 1: 182,03 zł 4In Stock Restricted Availability	Mfr. Part No. 51-261.025 Mouser Part No 123-51-261.025	EAO	Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	4In Stock	182,03 zł 181,98 zł 177,36 zł 173,58 zł View 167,29 zł Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB SQ MNT SLGP SLDR 51-281.025 EAO 1: 218,46 zł 3In Stock Restricted Availability	Mfr. Part No. 51-281.025 Mouser Part No 123-51-281.025	EAO	Switch Actuators LPB SQ MNT SLGP SLDR Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	3In Stock	218,46 zł 182,03 zł 177,36 zł 173,54 zł View 170,10 zł Quote	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK RND MNT 2POS 51-135.025D EAO 1: 376,73 zł 2In Stock Restricted Availability	Mfr. Part No. 51-135.025D Mouser Part No 123-51-135.025D	EAO	Keylock Switches KYLK RND MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	2In Stock	376,73 zł 376,68 zł 368,10 zł 361,06 zł View 349,40 zł Quote	Min.: 1 Mult.: 1 Restricted Availability
Keylock Switches KYLK REC MNT 2POS 51-195.022D EAO 1: 359,30 zł 10In Stock Restricted Availability	Mfr. Part No. 51-195.022D Mouser Part No 123-51-195.022D	EAO	Keylock Switches KYLK REC MNT 2POS Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	10In Stock	359,30 zł 359,26 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB REC MOM GD UNV LL 51-421.036 EAO 1: 181,85 zł 34In Stock Restricted Availability	Mfr. Part No. 51-421.036 Mouser Part No 123-51-421.036	EAO	Switch Actuators LPB REC MOM GD UNV LL Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	34In Stock	181,85 zł 179,74 zł View Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB REC MOM GD UNV LL 51-423.036 EAO 1: 181,85 zł 1In Stock Restricted Availability	Mfr. Part No. 51-423.036 Mouser Part No 123-51-423.036	EAO	Switch Actuators LPB REC MOM GD UNV LL Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	1In Stock	181,85 zł 177,19 zł 172,13 zł 168,65 zł Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Actuators LPB REC MOM GD UNV LL 51-425.036 EAO 1: 116,69 zł 12In Stock Restricted Availability	Mfr. Part No. 51-425.036 Mouser Part No 123-51-425.036	EAO	Switch Actuators LPB REC MOM GD UNV LL Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	12In Stock	116,69 zł 114,62 zł 112,16 zł 109,12 zł Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Switch Bezels / Switch Caps LENS REC FLT TLT WHT 51-901.9 EAO 1: 15,93 zł 184In Stock Restricted Availability	Mfr. Part No. 51-901.9 Mouser Part No 123-51-901.9	EAO	Switch Bezels / Switch Caps LENS REC FLT TLT WHT Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	184In Stock	15,93 zł 15,58 zł 14,87 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Bezels / Switch Caps LENS REC FLT TPT RED 51-903.2 EAO 1: 15,93 zł 107In Stock Restricted Availability	Mfr. Part No. 51-903.2 Mouser Part No 123-51-903.2	EAO	Switch Bezels / Switch Caps LENS REC FLT TPT RED Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	107In Stock	15,93 zł 15,84 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG 51-903.3 EAO 1: 15,93 zł 15In Stock Restricted Availability	Mfr. Part No. 51-903.3 Mouser Part No 123-51-903.3	EAO	Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	15In Stock	15,93 zł 15,58 zł 14,87 zł	Min.: 1 Mult.: 1 Restricted Availability
Switch Bezels / Switch Caps LENS REC FLT TPT YLW 51-903.4 EAO 1: 15,93 zł 14In Stock Restricted Availability 85On Order	Mfr. Part No. 51-903.4 Mouser Part No 123-51-903.4	EAO	Switch Bezels / Switch Caps LENS REC FLT TPT YLW Learn More about EAO series 51 switches Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	14In Stock 85On Order On Order Ship Dates Mfr. No: 51-903.4 Stock: 14 Can Dispatch Immediately On Order: 45 Expected 11/2/2026 40 Expected 11/9/2026 Factory Lead Time: 15 Weeks	15,93 zł 15,88 zł 15,31 zł 14,70 zł View 14,39 zł 14,30 zł	Min.: 1 Mult.: 1 Restricted Availability

Series 51 Switch Range

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Series 51 Switch Range

Types of Electromechanical