Momentary Key Pilot Switches

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Contact Block with Mounting Latch

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29 Products

Choosing an Electrical Switch

30 mm Panel-Mount Build-Your-Own Metal Switches

Choose an actuator and contact block to make your own switch. All switches are rated for protection from washdowns and oil/coolant spraying. NEMA 4X rated switches are also protected from corrosion. Use legend plates (not included) to label switches.

Key actuators are keyed alike, so they will all open with the same key.

Switch guards protect flush and projecting switches from accidental activation.

For technical drawings and 3-D models, click on a part number.

Key Actuators

2 Position
Switch Action	Switching Current @ Voltage	Max. Voltage	Dia.	For Max. No. of Contact Blocks	No. of Keys Included	Key Removal Position	Key Number	Environmental Rating		Each
Springs Back (Momentary)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	2	Left	501CH	NEMA 4, NEMA 13	00000000	0000000
3 Position
Springs Back (Momentary)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	2	Center	501CH	NEMA 4, NEMA 13	00000000	000000

Replacement Key

00000000

Each

00000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dp. Behind Panel	Wire Connection Type		Each
1	1 Off (Normally Open)	2	SPST-NO	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC 600V DC	1 3/4"	Screw Terminals	00000000	000000
1	1 On (Normally Closed)	2	SPST-NC	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC 600V DC	1 3/4"	Screw Terminals	00000000	00000
2	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC 600V DC	1 3/4"	Screw Terminals	00000000	00000

22 mm Panel-Mount Build-Your-Own Metal Switches

Choose an actuator and contact block to make your own switch. All switches are IP and NEMA rated for protection from dust, washdown, and chemicals. For an easy way to tell switches apart without labels, choose them based on their actuator color.

Key actuators prevent accidental activation because they require a key to turn on and off. They are keyed alike, so they will all open with the same key.

Contact blocks with mounting latch accept additional contact blocks to control more circuits.

For technical drawings and 3-D models, click on a part number.

Key Actuators

2 Positions
Switch Action	Dia.	For Max. No. of Contact Blocks	Key Removal Position	Environmental Rating	Specifications Met	Actuator Color		Each
Springs Back (Momentary)	1 3/16"	6	Right	NEMA 4, NEMA 13, IP66	UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	Black	0000000	000000
3 Positions
Springs Back (Momentary), Stays Switched (Maintained)	1 3/16"	6	Left	NEMA 4, NEMA 13, IP66	UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	Black	0000000	00000

Replacement Keys

00000000

Pkg.

000000

Contact Blocks with Mounting Latch for Lever and Key Actuators

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dp. Behind Panel	Wire Connection Type	Environmental Rating	Specifications Met		Each
1	1 Off (Normally Open)	2	SPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC	1 13/16"	Screw Terminals	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	000000
2	2 Off (Normally Open)	4	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC	1 13/16"	Screw Terminals	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	00000
2	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC	1 13/16"	Screw Terminals	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	00000

Contact Blocks with Mounting Latch for Push-Button, Lever, and Key Actuators

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dp. Behind Panel	Wire Connection Type	Environmental Rating	Specifications Met		Each
1	1 On (Normally Closed)	2	SPST-NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC	1 13/16"	Screw Terminals	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	000000
2	2 On (Normally Closed)	4	DPST-NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC	1 13/16"	Screw Terminals	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	00000

Contact Blocks

For Actuator Style	No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Environmental Rating	Specifications Met		Each
Push Button, Lever, Key	1	1 On (Normally Closed)	2	SPST-NC	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	000000
Lever, Key	1	1 Off (Normally Open)	2	SPST-NO	IP20	UL Listed, UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	00000000	00000

3/4" Panel-Mount Key Switches

With Screw Terminals

With Wire Leads

Prevent accidental activation and limit access—these switches require a key to turn circuits on or off. All fit into a standard panel cutout.

Keyed alike switches all open with the same key.

Keyed differently switches each open with a unique key.

Keyed differently/master keyed switches are keyed differently but can be used with a master key (sold separately).

For technical drawings and 3-D models, click on a part number.

Switches													Replacement Keys
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	No. of Keys Included	Key Removal Position		Each		Each
2 Position with Metal Base
Keyed Alike with Screw Terminals
1	1 Off (Normally Open)	Springs Back (Momentary)	2	SPST-NO	6 A @ 120 V AC	240V AC	7/8"	1 3/4"	2	Center	0000000	000000	0000000	00000
Keyed Alike with Wire Leads
1	1 Off (Normally Open)	Springs Back (Momentary)	2	SPST-NO	7 A @ 28 V DC/28 V AC	28V DC 28V AC	7/8"	1 1/8"	2	Center	00000000	00000	00000000	0000
Keyed Differently with Wire Leads
1	1 Off (Normally Open)	Springs Back (Momentary)	2	SPST-NO	7 A @ 28 V DC/28 V AC	28V DC 28V AC	7/8"	1 1/8"	2	Center	00000000	00000	00000000	0000

Switches													Master Keys
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	No. of Keys Included	Key Removal Position		Each		Each
2 Position with Metal Base
Keyed Differently/Master Keyed with Wire Leads
1	1 Off (Normally Open)	Springs Back (Momentary)	2	SPST-NO	7 A @ 28 V DC/28 V AC	28V DC 28V AC	7/8"	1 1/8"	2	Center	00000000	000000	00000000	00000

16 mm Panel-Mount Key Switches

Limit access to sensitive equipment—these switches require a key to actuate. Rated NEMA 4, 13, and IP65, they're protected from washdowns and oil/coolant spraying. All are keyed alike, so they open with the same key.

Mounting wrenches (sold separately) make it easier to install switches in crowded panels.

For technical drawings and 3-D models, click on a part number.

2 Position with Plastic Base
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Actuator Color	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	For Max. No. of Contact Blocks	Quick-Disconnect Tab Wd.	No. of Keys Included	Key Removal Position		Each
With Quick-Disconnect Terminals
1	1 Off (Normally Open)	Springs Back (Momentary)	4	SPST-NO	Black	2.5 A @ 125 V AC, 6 A @ 24 V DC	250V DC 250V AC	11/16"	1 11/16"	3	0.11"	2	Center	00000000	000000
3 Position with Plastic Base
With Quick-Disconnect Terminals
2	2 Off (Normally Open)	Springs Back (Momentary)	6	DPST-NO	Black	2.5 A @ 125 V AC, 6 A @ 24 V DC	250V DC 250V AC	11/16"	1 11/16"	2	0.11"	2	Center	00000000	00000

Mounting Wrench	00000000	Each	00000
Replacement Key	00000000	Each	00000
Contact Block Removal Tool	00000000	Each	00000