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ON - ON Interlock Switches

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Contact Form	Switch Function	Voltage Rating AC	Voltage Rating DC	Power Rating	Termination Style	Housing Material	IP Rating
Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMIF Banner Engineering 1: $625.29 7In Stock	Mfr. Part # SI-LS42DMMIF Mouser Part # 778-SI-LS42DMMIF	Banner Engineering	Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	7In Stock	$625.29	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Straight In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSI Banner Engineering 1: $592.80 2In Stock	Mfr. Part # SI-LS42DMSI Mouser Part # 778-SI-LS42DMSI	Banner Engineering	Interlock Switches Spring Locking: Straight In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	2In Stock	$592.80	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSG Banner Engineering 1: $557.70 4In Stock	Mfr. Part # SI-LS42DMSG Mouser Part # 778-SI-LS42DMSG	Banner Engineering	Interlock Switches Spring Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	4In Stock	$557.70	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC, 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMH Banner Engineering 1: $499.20 17In Stock	Mfr. Part # SI-LS42DMH Mouser Part # 778-SI-LS42DMH	Banner Engineering	Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC, 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	17In Stock	$499.20	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMI Banner Engineering 1: $530.40 5In Stock	Mfr. Part # SI-LS42DMI Mouser Part # 778-SI-LS42DMI	Banner Engineering	Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	5In Stock	$530.40	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DSH Banner Engineering 1: $499.20 8In Stock	Mfr. Part # SI-LS42DSH Mouser Part # 778-SI-LS42DSH	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	8In Stock	$499.20	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMG Banner Engineering 1: $557.70 1In Stock	Mfr. Part # SI-LS42DMMG Mouser Part # 778-SI-LS42DMMG	Banner Engineering	Interlock Switches Solenoid Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	1In Stock	$557.70	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMHF Banner Engineering 1: $601.90 2In Stock	Mfr. Part # SI-LS42DMMHF Mouser Part # 778-SI-LS42DMMHF	Banner Engineering	Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	2In Stock	$601.90	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Straight In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMI Banner Engineering 1: $592.80 1In Stock	Mfr. Part # SI-LS42DMMI Mouser Part # 778-SI-LS42DMMI	Banner Engineering	Interlock Switches Solenoid Locking: Straight In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	1In Stock	$592.80	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMJF Banner Engineering 1: $642.20 1In Stock	Mfr. Part # SI-LS42DMMJF Mouser Part # 778-SI-LS42DMMJF	Banner Engineering	Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	1In Stock	$642.20	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSH Banner Engineering 1: $557.70 3In Stock	Mfr. Part # SI-LS42DMSH Mouser Part # 778-SI-LS42DMSH	Banner Engineering	Interlock Switches Spring Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	3In Stock	$557.70	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSHF Banner Engineering 1: $601.90 1In Stock	Mfr. Part # SI-LS42DMSHF Mouser Part # 778-SI-LS42DMSHF	Banner Engineering	Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	1In Stock	$601.90	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Straight In-line; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing SI-LS42WMSG Banner Engineering 1: $687.70 1In Stock 2Expected 9/29/2026	Mfr. Part # SI-LS42WMSG Mouser Part # 778-SI-LS42WMSG	Banner Engineering	Interlock Switches Spring Locking: Straight In-line; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing	Datasheet	1In Stock 2Expected 9/29/2026	$687.70	Min.: 1 Mult.: 1		ON - ON	110 VAC/230 VAC		4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMJ Banner Engineering 1: $530.40 1In Stock	Mfr. Part # SI-LS42DMJ Mouser Part # 778-SI-LS42DMJ	Banner Engineering	Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	1In Stock	$530.40	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DSG Banner Engineering 1: $499.20 2In Stock	Mfr. Part # SI-LS42DSG Mouser Part # 778-SI-LS42DSG	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	2In Stock	$499.20	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DSI Banner Engineering 1: $530.40 3In Stock	Mfr. Part # SI-LS42DSI Mouser Part # 778-SI-LS42DSI	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	3In Stock	$530.40	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DSJ Banner Engineering 1: $530.40 2In Stock	Mfr. Part # SI-LS42DSJ Mouser Part # 778-SI-LS42DSJ	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 3 NC; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	2In Stock	$530.40	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing SI-LS42WSG Banner Engineering 1: $629.20 2In Stock 1Expected 9/29/2026	Mfr. Part # SI-LS42WSG Mouser Part # 778-SI-LS42WSG	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing	Datasheet	2In Stock 1Expected 9/29/2026	$629.20	Min.: 1 Mult.: 1		ON - ON	110 VAC/230 VAC		4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 110/230 V ac; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing SI-LS42WSH Banner Engineering 1: $629.20 2In Stock 1Expected 9/29/2026	Mfr. Part # SI-LS42WSH Mouser Part # 778-SI-LS42WSH	Banner Engineering	Interlock Switches Interlock Body, Spring Locking; Solenoid Voltage: 110/230 V ac; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing	Datasheet	2In Stock 1Expected 9/29/2026	$629.20	Min.: 1 Mult.: 1	SPDT	ON - ON	110 VAC/230 VAC		4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSIF Banner Engineering 1: $642.20 3Expected 9/29/2026	Mfr. Part # SI-LS42DMSIF Mouser Part # 778-SI-LS42DMSIF	Banner Engineering	Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC/1 NO; 1 NC; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	3Expected 9/29/2026	$642.20	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing SI-LS42WMSGF Banner Engineering 1: $737.10 3Expected 10/5/2026	Mfr. Part # SI-LS42WMSGF Mouser Part # 778-SI-LS42WMSGF	Banner Engineering	Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 110/230 V ac; Contact Configuration: 1 NC/1 NO; 1 NC/1NO; Dimensions: 170 x 43 x 46 mm; Plastic Housing	Datasheet	3Expected 10/5/2026	$737.10	Min.: 1 Mult.: 1		ON - ON	110 VAC/230 VAC		4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMSGF Banner Engineering 1: $601.90 3Expected 9/29/2026	Mfr. Part # SI-LS42DMSGF Mouser Part # 778-SI-LS42DMSGF	Banner Engineering	Interlock Switches Spring Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	3Expected 9/29/2026	$601.90	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMG Banner Engineering 1: $499.20 3Expected 9/29/2026	Mfr. Part # SI-LS42DMG Mouser Part # 778-SI-LS42DMG	Banner Engineering	Interlock Switches Interlock Body, Solenoid Locking; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	3Expected 9/29/2026	$499.20	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMGF Banner Engineering 1: $601.90 Non-Stocked Lead-Time 1 Week	Mfr. Part # SI-LS42DMMGF Mouser Part # 778-SI-LS42DMMGF	Banner Engineering	Interlock Switches Solenoid Locking: Flexible In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 1 NC/1 NO; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	Non-Stocked Lead-Time 1 Week	$601.90	Min.: 1 Mult.: 1		ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67
Interlock Switches Solenoid Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing SI-LS42DMMH Banner Engineering 1: $557.70 Non-Stocked Lead-Time 3 Weeks	Mfr. Part # SI-LS42DMMH Mouser Part # 778-SI-LS42DMMH	Banner Engineering	Interlock Switches Solenoid Locking: Standard In-line; Solenoid Voltage: 24 V ac/dc; Contact Configuration: 2 NC; 1 NC/1 NO; Dimensions: 170 x 43 x 45 mm; Plastic Housing	Datasheet	Non-Stocked Lead-Time 3 Weeks	$557.70	Min.: 1 Mult.: 1	SPDT	ON - ON	24 VAC	24 VDC	4.4 VA	Wire Lead	Thermoplastic (TP)	IP67

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