Harsh Environment Key Pilot Switches

	Number of Positions Number of Positions

	For Panel Cutout Diameter For Panel Cutout Diameter

	Switch Action Switch Action

Stays Switched
(Maintained)

Springs Back (Momentary)

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

2 Off (Normally Open)

1 Off (Normally Open) and
1 On (Normally Closed)

1 On (Normally Closed)

2 On (Normally Closed)

2 Off (Normally Open) and
2 On (Normally Closed)

	Switching Voltage Switching Voltage

120V AC

125V AC

24V DC

	Number of Terminals Number of Terminals

	Environment Environment

High-
Pressure
Washdown

Submersible

	Wire Connection Type Wire Connection Type


Screw Terminals	Quick- Disconnect Terminals

	Key Removal Position Key Removal Position

Left

Center

Right

	Component Component

Key Actuator

Contact Block with Mounting
Latch

Contact Block

	Maximum Voltage Maximum Voltage

	Switching Current Switching Current

2.5A

	Number of Circuits Controlled Number of Circuits Controlled

	Actuator Base Material Actuator Base Material

Plastic

Metal

	Industry Designation Industry Designation

	Specifications Met Specifications Met

CSA

CE Marked

CCC Marked

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Environmental Rating Environmental Rating

	Terminal Numbering Terminal Numbering

	For Actuator Type For Actuator Type

Key

Lever

Push Button

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Key Number Key Number

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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51 Products

Choosing an Electrical Switch

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

Choose an actuator and contact block to make your own switch. All switches are rated NEMA 4 and 13.

Flush and projecting switches are rated IP66.

Key actuators 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
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
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
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.

00000

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

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

Choose an actuator and contact block to make your own switch. Actuators are rated NEMA 3S, 4X and 13 for protection from dust, outdoor environments, corrosion, oil, and washdowns. Use legend plates (not included) to label switches. BACO Controls switches are only compatible with BACO manufactured legend plates.

Key actuators 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.

Mounting tools make it easier to install switches in crowded panels.

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

Key Actuators

2 Position
Switch Action	Dia.	For Max. No. of Contact Blocks	No. of Keys Included	Key Removal Position	Environmental Rating	Specifications Met	Manufacturer	Actuator Color		Each
Springs Back (Momentary)	1 3/16"	6	2	Left	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	UL Recognized Component, C-UL Recognized Component, UL 508	BACO Controls	Black	0000000	000000
Stays Switched (Maintained)	1 3/16"	6	2	Left	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	UL Recognized Component, C-UL Recognized Component, UL 508	BACO Controls	Black	0000000	00000
3 Position
Springs Back (Momentary)	1 3/16"	6	2	Center	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	UL Recognized Component, C-UL Recognized Component, UL 508	BACO Controls	Black	0000000	00000
Springs Back (Momentary), Stays Switched (Maintained)	1 3/16"	6	2	Center	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	UL Recognized Component, C-UL Recognized Component, UL 508	BACO Controls	Black	0000000	00000
Stays Switched (Maintained)	1 3/16"	6	2	Center	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	UL Recognized Component, C-UL Recognized Component, UL 508	BACO Controls	Black	0000000	00000

Replacement Key	0000000	Pkg.	000000
Mounting Tool	0000000	Each	00000

Contact Blocks with Mounting Latch

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 600V DC	1 11/16"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	000000
1	1 On (Normally Closed)	2	SPST-NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 11/16"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	00000
2	2 Off (Normally Open)	4	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 11/16"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	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 600V DC	1 11/16"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	00000
2	2 On (Normally Closed)	4	DPST-NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 11/16"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	00000
4	2 Off (Normally Open) and 2 On (Normally Closed)	8	4PST-2NO/2NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	2"	Screw Terminals	IP20	UL Listed, C-UL Listed, CE Marked	0000000	00000

Replacement Contact Retaining Clip

000000

Each

00000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Environmental Rating	Specifications Met		Each
1	1 Off (Normally Open)	2	SPST-NO	IP20	UL Listed, C-UL Listed, CE Marked	000000	00000
1	1 On (Normally Closed)	2	SPST-NC	IP20	UL Listed, C-UL Listed, CE Marked	000000	0000

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
Stays Switched (Maintained)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	2	Left, Right	501CH	NEMA 4, NEMA 13	00000000	000000
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
Stays Switched (Maintained)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	2	Center, Left, Right	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

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
1	1 Off (Normally Open)	Stays Switched (Maintained)	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, Right	00000000	00000
2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-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, Right	00000000	00000
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
2	2 Off (Normally Open)	Stays Switched (Maintained)	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	Left, Center, Right	00000000	00000

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

30 mm Panel-Mount Key Switches

These switches require a key to turn circuits on or off, limiting access to sensitive equipment. Rated NEMA 6, 13, and IP66, they're protected from washdowns and oil/coolant spraying. All are keyed alike, so they open with the same key. They include enough contact blocks to control the number of circuits listed.

Additional contact blocks (sold separately) can be added to control more circuits, or to replace the included contact block.

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

2 Position with Metal Base
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	For Max. No. of Contact Blocks	No. of Keys Included	Key Removal Position		Each
With Screw Terminals
1	1 Off (Normally Open)	Stays Switched (Maintained)	2	SPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 5/16"	1 5/8"	4	2	Left	0000000	0000000
2	1 Off (Normally Open) and 1 On (Normally Closed)	Stays Switched (Maintained)	4	DPST-1NO/1NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 5/16"	1 5/8"	4	2	Left	0000000	000000

Replacement Key

00000000

Each

000000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Environmental Rating	Specifications Met		Each
1	1 Off (Normally Open)	2	SPST-NO	IP20	CSA Certified, EN 60947-1, EN 60947-5-1, EN 60947-5-4, IEC 60947-1, IEC 60947-5-1, IEC 60947-5-4	0000000	000000
1	1 On (Normally Closed)	2	SPST-NC	IP20	CSA Certified, EN 60947-1, EN 60947-5-1, EN 60947-5-4, IEC 60947-1, IEC 60947-5-1, IEC 60947-5-4	0000000	00000
2	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	IP20	CSA Certified, EN 60947-1, EN 60947-5-1, EN 60947-5-4, IEC 60947-1, IEC 60947-5-1, IEC 60947-5-4	0000000	00000

22 mm Panel-Mount Key Switches

Limit access to sensitive equipment—these switches require a key to actuate. They're rated IP66, IP69K, NEMA 3S, NEMA 4X, and NEMA 13, and are UL and C-UL Recognized Components. Switches include enough contact blocks to control the number of circuits listed. Contact blocks are rated IP20 and are UL and C-UL Listed. Use BACO legend plates (not included) to label switches.

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

Additional contact blocks (sold separately) can be added to control more circuits, or to replace the included contact block.

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	No. of Keys Included	Key Removal Position	Manufacturer		Each
With Screw Terminals
1	1 Off (Normally Open)	Stays Switched (Maintained)	2	SPST-NO	Black	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 3/16"	1 11/16"	6	2	Left	BACO Controls	000000	000000

Mounting Tool	0000000	Each	000000
Replacement Key	0000000	Pkg.	00000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation		Each
1	1 Off (Normally Open)	2	SPST-NO	000000	00000
1	1 On (Normally Closed)	2	SPST-NC	000000	0000