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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Switch Fixings LPB ACTUATOR REC 51-165.0 EAO 1: $27.61 51In Stock	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	Datasheet	51In Stock	$27.61 $27.59 $26.90 $25.91 View $24.24 $23.02	Min.: 1 Mult.: 1
Keylock Switches KYLK RND MOM 3POS 51-378.AD EAO 1: $156.64 7In Stock	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	Datasheet	7In Stock	$156.64 $135.08 $128.63 $123.79	Min.: 1 Mult.: 1
Switch Actuators LPB SQ MOM SLGP QC 51-151.022 EAO 1: $52.82 80In Stock	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	Datasheet	80In Stock	$52.82	Min.: 1 Mult.: 1
Keylock Switches KYLK RND MNT 2POS 51-235.022D EAO 1: $102.83 61In Stock	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	Datasheet	61In Stock	$102.83 $98.11 $95.24 Quote Quote	Min.: 1 Mult.: 1
Keylock Switches KYLK RND MNT 2POS 51-236.025D EAO 1: $116.28 29In Stock	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	Datasheet	29In Stock	$116.28 $113.61 $111.44 $107.83 View Quote	Min.: 1 Mult.: 1
Switch Actuators STP SWTC W-ANTI TWIST RELEASE 2N.C 51-252.026 EAO 1: $54.43 70In 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 Learn More about EAO series 51 switches	Datasheet	70In Stock	$54.43 $54.29 $52.67 $52.25	Min.: 1 Mult.: 1
Keylock Switches KYLK SQ MNT 2POS 51-255.022D EAO 1: $102.83 34In Stock	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	Datasheet	34In Stock	$102.83 $99.39 $98.89 $96.36 View Quote	Min.: 1 Mult.: 1
Keylock Switches KYLK RND MNT 2POS 51-235.025D EAO 1: $94.25 37In Stock 32Expected 18/12/2026	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	Datasheet	37In Stock 32Expected 18/12/2026	$94.25 $94.02 $91.16 $89.91 View $87.46 Quote	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps ANTIROTATION LOCKING WSHR 51-910 EAO 1: $2.80 825In Stock	Mfr. Part No. 51-910 Mouser Part No 123-51-910	EAO	Switch Bezels / Switch Caps ANTIROTATION LOCKING WSHR Learn More about EAO series 51 switches	Datasheet	825In Stock	$2.80 $2.72	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps LENS SQ FLT TPT RED 51-953.2 EAO 1: $5.30 519In Stock	Mfr. Part No. 51-953.2 Mouser Part No 123-51-953.2	EAO	Switch Bezels / Switch Caps LENS SQ FLT TPT RED Learn More about EAO series 51 switches	Datasheet	519In Stock	$5.30 $4.95 $4.75 $4.69	Min.: 1 Mult.: 1
Switch Actuators LPB REC MOM SLGP QC 51-121.022 EAO 1: $52.82 37In Stock	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	Datasheet	37In Stock	$52.82 $51.60 $51.58 $50.56 View Quote	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial LPB REC MOM SLGP SLDR 51-121.025 EAO 1: $48.82 16In Stock	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	Datasheet	16In Stock	$48.82 $47.31 $45.55 $43.97 View $42.99 $41.82	Min.: 1 Mult.: 1
Switch Actuators LPB SQ MOM SLGP SLDR 51-151.025 EAO 1: $48.97 1In Stock	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	Datasheet	1In Stock	$48.97 $47.91 View Quote	Min.: 1 Mult.: 1
Switch Actuators STP SWTC W-ANTI TWIST RELEASE 1N.C 51-256.026 EAO 1: $45.90 14In 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 Learn More about EAO series 51 switches	Datasheet	14In Stock	$45.90 $45.34 $44.84 $40.50	Min.: 1 Mult.: 1
Switch Actuators LPB REC MNT SLGP QC 51-261.022 EAO 1: $60.68 4In Stock	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	Datasheet	4In Stock	$60.68 $60.67 $59.36 View Quote	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial LPB REC MNT SLGP SLDR 51-261.025 EAO 1: $53.67 4In Stock	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	Datasheet	4In Stock	$53.67 $53.43 $51.45 $50.37 View $48.57 Quote	Min.: 1 Mult.: 1
Keylock Switches KYLK RND MNT 2POS 51-135.025D EAO 1: $107.82 2In Stock	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	Datasheet	2In Stock	$107.82 $107.81 $105.35 $103.33 View $100.00 Quote	Min.: 1 Mult.: 1
Keylock Switches KYLK REC MNT 2POS 51-195.022D EAO 1: $102.83 10In Stock	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	Datasheet	10In Stock	$102.83 $102.82 View Quote	Min.: 1 Mult.: 1
Switch Actuators LPB SQ MNT SLGP SLDR 51-281.025 EAO 1: $62.52 3In Stock	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	Datasheet	3In Stock	$62.52 $52.10 $50.76 $49.67 View $48.69 Quote	Min.: 1 Mult.: 1
Switch Actuators LPB REC MOM GD UNV LL 51-421.036 EAO 1: $52.05 34In Stock	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	Datasheet	34In Stock	$52.05 $51.44 View Quote	Min.: 1 Mult.: 1
Switch Actuators LPB REC MOM GD UNV LL 51-423.036 EAO 1: $52.05 1In Stock	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	Datasheet	1In Stock	$52.05 $50.71 $49.26 $48.27 Quote Quote	Min.: 1 Mult.: 1
Switch Actuators LPB REC MOM GD UNV LL 51-425.036 EAO 1: $33.40 7In Stock	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	Datasheet	7In Stock	$33.40 $32.80 $32.10 $31.23 Quote Quote	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps LENS REC FLT TLT WHT 51-901.9 EAO 1: $4.56 153In Stock	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	Datasheet	153In Stock	$4.56 $4.46 $4.26	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps LENS REC FLT TPT RED 51-903.2 EAO 1: $4.56 97In Stock	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	Datasheet	97In Stock	$4.56 $4.53	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps LENS RECT ORANGE TPT ORNG 51-903.3 EAO 1: $4.56 15In Stock	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	Datasheet	15In Stock	$4.56 $4.46 $4.26	Min.: 1 Mult.: 1

Series 51 Switch Range

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Series 51 Switch Range

Types of Electromechanical