Hand Off Auto Switches | McMaster-Carr

	For Panel Cutout Diameter For Panel Cutout Diameter

	Switching Voltage Switching Voltage

120V AC

125V AC

24V DC

	Number of Circuits Controlled Number of Circuits Controlled

	Actuator Color Actuator Color

	Black		Gray
	Red		Green
	White		Yellow

	Switch Starting Position Switch Starting Position

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

2 Off (Normally Open)

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

	Environment Environment

High-
Pressure
Washdown

Hazardous

	Illumination Illumination

Not Illuminated

Illuminated

	Number of Terminals Number of Terminals

	Industry Designation Industry Designation

DPST-1NO/1NC

DPST-NO

4PST-2NO/2NC

	Environmental Rating Environmental Rating

NEC Class I Division 2
Groups A, B, C, D

NEC Class I Divisions
1, 2 Groups C, D

NEC Class II Divisions
1, 2 Groups E, F, G

NEC Class III
Divisions 1, 2

	Switching Current Switching Current

2.5A

10A

	Wire Connection Type Wire Connection Type


Screw Terminals	Quick- Disconnect Terminals

	Lever Length Lever Length

	Maximum Voltage Maximum Voltage

	Diameter Diameter

	Terminal Numbering Terminal Numbering

1-2, 3-4

3-4, 3-4

13-14, 23-24

	Actuator Base Material Actuator Base Material

Metal

Plastic

	Switch Position Switch Position

Center

Left

Right

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

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

CE Marked

CSA

CCC Marked

	For Maximum Number of Contact Blocks For Maximum Number of Contact Blocks

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

RoHS Compliant with
Exemptions

RoHS Compliant

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

REACH Compliant

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37 Products

Choosing an Electrical Switch

Metal 30 mm Panel-Mount Lever Switches

Rated NEMA 4, 13, and IP66, these switches are protected from washdowns and oil/coolant spraying. They include enough contact blocks to control the number of circuits listed. The contact block is rated IP20.

Three-position switches are off in the center position.

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.

3 Position
Lever Lg.	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	Actuator Color		Each
With Screw Terminals
15/16"	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"	2 3/4"	4	Black	000000	0000000
15/16"	4	2 Off (Normally Open) and 2 On (Normally Closed)	Stays Switched (Maintained)	8	4PST-2NO/2NC	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 5/16"	2 3/4"	4	Black	000000	000000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Specifications Met		Each
1	1 Off (Normally Open)	2	SPST-NO	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	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	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

Plastic 22 mm Panel-Mount Lever Switches

These switches are rated IP66, IP69K, NEMA 3S, NEMA 4X, and NEMA 13, and are UL and C-UL Recognized Components. They include enough contact blocks to control the number of circuits listed. Contact blocks are rated IP20 and are UL and C-UL Listed.

Three-position switches are off in the center position.

Illuminated switches include a bulb. If wiring the switch and the bulb to the same circuit, the circuit voltage must not exceed bulb voltage.

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 replace the included contact block.

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

Not Illuminated

Black Switch

Gray Switch

Green Switch

Red Switch

3 Position with Screw Terminals
Lever Lg.	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	Choose an Actuator Color	Manufacturer		Each
7/8"	2	2 Off (Normally Open)	Stays Switched (Maintained)	4	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 3/16"	1 11/16"	6	Black, Gray, Green, Red	BACO Controls	00000000	000000
1 1/4"	2	2 Off (Normally Open)	Stays Switched (Maintained)	4	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	1 3/16"	1 11/16"	6	Black, Gray, Green, Red	BACO Controls	00000000	00000

Illuminated

Illuminated Green Switch

Illuminated Red Switch

Illuminated Black Switch

3 Position with Screw Terminals
Lever Lg.	No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Bulb Voltage	Dia.	Dp. Behind Panel	For Max. No. of Contact Blocks	Choose an Actuator Color	Manufacturer		Each
7/8"	2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	120V AC	1 3/16"	1 11/16"	4	Black, Green, Red	BACO Controls	00000000	000000
7/8"	2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	240V AC	1 3/16"	1 11/16"	4	Black, Green, Red	BACO Controls	00000000	00000
1 1/4"	2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	24V AC 24V DC	1 3/16"	1 11/16"	4	Black	BACO Controls	00000000	00000
1 1/4"	2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	120V AC	1 3/16"	1 11/16"	4	Black	BACO Controls	00000000	00000

Mounting Tools

		Each
	0000000	000000

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
2	1 Off (Normally Open) or 1 On (Normally Closed)	4	DPST-1NO/1NC	0000000	00000

16 mm Panel-Mount Lever Switches

Rated NEMA 4, 13, and IP65, they’re protected from washdowns and oil/coolant spraying.

Three-position switches are off in the center position.

Add a bulb (sold separately) to illuminate switches. If wiring the switch and the bulb to the same circuit, the circuit voltage must not exceed bulb voltage.

Use removal tools (sold separately) to replace bulbs and contact blocks.

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.

3 Position with Plastic Base
Lever Lg.	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	Quick-Disconnect Tab Wd.	Choose an Actuator Color		Each
With Quick-Disconnect Terminals
9/16"	2	2 Off (Normally Open)	Stays Switched (Maintained)	6	DPST-NO	2.5 A @ 125 V AC, 6 A @ 24 V DC	250V DC 250V AC	11/16"	1 11/16"	2	0.11"	Black, Green, Red, White, Yellow	00000000	000000

Bulb Removal Tool	Each	00000
Contact Block Removal Tool	Each	00000
Mounting Wrench	Each	0000

Bulbs

Voltage	Color	Light Technology		Each
28V AC	Frosted	LED	000000000	000000
48V AC, 48V DC	Frosted	LED	000000000	00000

Hazardous Location Enclosed Lever Switches

Use these switches where ignitable gas, dust, and fibers may be present. They're UL and C-UL listed for hazardous locations.

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

									Mounting
Actuator Color	Message (Switch Position)	No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Fasteners Included	No. of Holes	Hole Dia.		Each
3 Positions
With Screw Terminals
Gray	Hand (Left), Off (Center), Auto (Right)	2	1 Off (Normally Open) and 1 On (Normally Closed)	Stays Switched (Maintained)	4	DPST-1NO/1NC	10 A @ 120 V AC	600V AC	No	2	5/16"	0000000	0000000

Plastic Enclosed Lever Switches

Rated NEMA 3S, 4X and 13, these switches are protected from corrosion, washdowns, and oil/coolant spraying.

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

									Mounting
Actuator Color	Message (Switch Position)	No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Fasteners Included	No. of Holes	Hole Dia.	Environmental Rating		Each
3 Position
With Screw Terminals
Black	Hand (Left), Off (Center), Auto (Right)	2	2 Off (Normally Open)	Stays Switched (Maintained)	4	DPST-NO	6 A @ 120 V AC, 2.5 A @ 24 V DC	600V AC 600V DC	No	2	3/16"	NEMA 3S, NEMA 4X, NEMA 13	0000000	000000

Replacement Contact Blocks

For Switches with 2 Circuits Controlled
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	0000000	00000

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.

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

Lever Actuators

3 Positions
Lg.	Switch Action	Dia.	For Max. No. of Contact Blocks	Environmental Rating	Specifications Met	Actuator Color		Each
1"	Stays Switched (Maintained)	1 3/16"	6	NEMA 4, NEMA 13, IP66	UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	Black	00000000	000000
1 7/16"	Stays Switched (Maintained)	1 3/16"	6	NEMA 4, NEMA 13, IP66	UL Recognized Component, CSA Certified, CE Marked, CCC Marked, UL 508	Black	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.

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

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

Lever Actuators

3 Position
Lever Lg.	Switch Action	Dia.	For Max. No. of Contact Blocks	Environmental Rating	Manufacturer	Choose an Actuator Color		Each
7/8"	Stays Switched (Maintained)	1 3/16"	6	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	BACO Controls	Black, Red	0000000	000000
1 1/4"	Stays Switched (Maintained)	1 3/16"	6	NEMA 3S, NEMA 4X, NEMA 13, IP69K, IP66, IK05	BACO Controls	Black, Red	0000000	00000

Mounting Tool

0000000

Each

000000

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.

Switch guards protect flush and projecting switches from accidental activation.

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

Lever Actuators

3 Position
Lever Lg.	Switch Action	Switching Current @ Voltage	Max. Voltage	Dia.	For Max. No. of Contact Blocks	Environmental Rating	Actuator Color		Each
1 1/4"	Stays Switched (Maintained)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	NEMA 4, NEMA 13	Black	00000000	000000
1 9/16"	Stays Switched (Maintained)	6 A @ 120 V AC, 5 A @ 24 V DC	600V AC/600V DC	1 1/8"	4	NEMA 4, NEMA 13	Black	00000000	00000

Plastic Legend Plates with Message

With Insert

With Keyway Notch

With Insert and Keyway Tab

These plates come engraved with your choice of message. Slip them over control board buttons and panel lights to identify their function and mark system components. Note: The plates manufactured from BACO Controls are only compatible with BACO control board buttons and panel lights.

Plates with an insert allow you to swap out your message without replacing the plate.

For Panel Cutout Dia.	Keyway Type	Ht.	Wd.	Insert Color	Material	Manufacturer	Choose a Message		Each
22 mm (7/8")	Without Keyway	1 3/4"	1 3/16"	Black	Polyamide Plastic	BACO Controls	Close, Down, Forward, Hand-Off-Auto, Jog, Off, Off-On, On, Open, Reset, Reverse, Run, Start, Stop, Stop-Start, Up	00000000	00000
22 mm (7/8")	Without Keyway	1 3/4"	1 3/16"	Red	Polyamide Plastic	BACO Controls	Close, Down, Forward, Hand-Off-Auto, Jog, Off, Off-On, On, Open, Reset, Reverse, Run, Start, Stop, Stop-Start, Up	00000000	0000
30 mm (1 3/16")	Notch	1 3/4"	1 3/4"	__	Polystyrene Plastic	__	Close, Down, Forward, Hand-Off-Auto, Off, Off-On, On, Open, Reset, Reverse, Run, Start, Start-Stop, Stop, Up	00000000	0000
30 mm (1 3/16")	Tab	2 1/8"	1 1/2"	Black	Polyamide Plastic	BACO Controls	Close, Down, Forward, Hand-Off-Auto, Jog, Off, Off-On, On, Open, Reset, Reverse, Run, Start, Stop, Stop-Start, Up	00000000	0000

Metal Legend Plates with Message

These plates come engraved with your choice of message. Slip them over control board buttons and panel lights to identify their function and mark system components. Made of aluminum, these plates are lightweight and corrosion resistant.

For Panel Cutout Dia.	Keyway Type	Ht.	Wd.	Material	Choose a Message		Each
30 mm (1 3/16")	Notch	1 7/16"	2"	Aluminum	Close, Down, Forward, Hand-Off-Auto, Jog, Man.-Auto, Off, Off-On, On, On-Off-Auto, Open, Reset, Reverse, Run, Start, Start-Stop, Stop, Up	000000000	00000