Conveyor Stop Switches | McMaster-Carr

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27 Products

Choosing a Proximity Switch

Choosing an Electrical Switch

One Direction

One Direction with Power and Tension Indicator

One Direction with
Emergency Stop Button,
Power and Tension Indicator

Two Direction

Immediately cut power by pulling a cable. These switches are often used to turn off production lines and material handling systems in an emergency. All have positive-force, snap-open contacts that open a circuit when actuated, even if a spring fails or the contacts stick. The contacts will remain open until you tension the cable and reset the switch.

Two-direction switches can be used with tension springs (not included) to open contacts and stop machinery if the cable breaks.

Switches with a power indicator illuminate when the cable has been pulled.

Switches with a tension indicator let you visually confirm that tension is set correctly in the system.

Switches with an emergency stop button can be shut off either by their button or cable. They’re often installed where equipment may block access to the cable.

Accessory kits (sold separately) simplify the installation of a new switch.

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

Switches
									Mounting					Accessory Kits
For Max. Cable Lg., ft.	No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Actuation Force, lbs.	Conduit Trade Size	Fasteners Included	No. of Holes	Hole Dia.		Each	Includes		Each
With Screw Terminals
1 Direction (IP65, NEMA 4)
15	1	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	10 A @ 120 V AC	400V AC	18	1/2	No	4	1/4"	00000000	0000000	Cable, Clamps, Tension Screws, Thimbles	00000000	0000000
30	1	1 Off (Normally Open) or 1 On (Normally Closed)	3	SPDT	10 A @ 120 V AC	380V AC	27	1/2	No	4	1/4"	00000000	000000	Cable, Clamps, Tension Screws, Thimbles	00000000	000000
75	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	10 A @ 120 V AC	380V AC	45	1/2	No	4	1/4"	00000000	000000	Cable, Clamps, Tension Screws, Thimbles	00000000	000000
1 Direction with Power Indicator and Tension Indicator (IP67, NEMA 4, NEMA 13)
250	1	1 Off (Normally Open) or 1 On (Normally Closed)	3	SPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	300V AC/250V DC	40	1/2	No	4	1/4"	00000000	000000	__	000000	00
1 Direction with Emergency Stop Button, Power Indicator and Tension Indicator (IP67, NEMA 4, NEMA 13)
250	1	1 Off (Normally Open) or 1 On (Normally Closed)	3	SPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	300V AC/250V DC	40	1/2	No	4	1/4"	00000000	000000	__	000000	00
2 Direction (IP67)
165	2	1 Off (Normally Open) and 1 On (Normally Closed)	4	DPST-1NO/1NC	1.1 A @ 120 V AC	240V AC	5	3/4	No	2	5/16"	00000000	000000	Cable, Clamps, Eyebolts, Tension Screws, Tension Springs	00000000	000000

Cable-Pull Emergency Stop Switches with Restart Switch

Tug the cable to stop your line, then follow it back to the restart switch. Typically separate devices, the stop and reset controls are in one compact unit. As a secondary shutdown option, a push-button stop switch is also built in. A secondary push-button stop switch ensures you can halt equipment immediately, even when the cable is out of reach. Because they let you control circuits from a distance with a quick tug, these cable-pull stop switches are often used to turn off production lines and material handling systems. To notify your team on the floor that you’ve stopped equipment, a power indicator lights up when you pull the cable.

Use the tension indicator to confirm that cable is set up correctly. Circuits remain open until you tension the cable and hit the restart button. Cable is not included.

Two-direction switches support twice the total cable distance of one-direction switches. With pulls on each side, you can route cable in two opposite directions. These switches are often placed at the midpoint of conveyors and other long runs of equipment.

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

1 Direction Switches

Left Side Cable Location

Right Side Cable Location

											Mounting
Cable Location	For Max. Cable Lg., ft.	No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Actuation Force, lbs.	Conduit Trade Size	Bulb Voltage	Fasteners Included	No. of Holes	Hole Dia.		Each
With Screw Terminals
With Restart Button, Emergency Stop Button, Power Indicator and Tension Indicator (IP54, NEMA 1)
Left Side	325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	24V DC	No	4	1/4"	00000000	0000000
Left Side	325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	120V AC	No	4	1/4"	00000000	00000000
Right Side	325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	24V DC	No	4	1/4"	0000000	000000
Right Side	325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	120V AC	No	4	1/4"	00000000	00000000

2 Direction Switches

										Mounting
For Max. Cable Lg., ft.	No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Actuation Force, lbs.	Conduit Trade Size	Bulb Voltage	Fasteners Included	No. of Holes	Hole Dia.		Each
With Screw Terminals
With Restart Button, Emergency Stop Button, Power Indicator and Tension Indicator (IP54, NEMA 1)
325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	24V DC	No	4	1/4"	0000000	000000000
325	2	2 Off (Normally Open) or 2 On (Normally Closed)	6	DPDT	6 A @ 120 V AC, 2.8 A @ 24 V DC	240V AC 24V DC	11	1/2	120V AC	No	4	1/4"	00000000	00000000

Hazardous Location Cable-Pull Emergency Stop Switches

Safe to use near ignitable gases and dust, the housing on these switches seals in anything that could ignite flammable material. All are UL listed and CSA certified for use in hazardous locations. Yank the cable anywhere along your line to quickly cut power in emergencies. They have positive-force, snap-open contacts that open a circuit when actuated, even if a spring fails or the contacts stick. The contacts will remain open until you tension the cable and reset the switch. Use the tension indicator to visually confirm that they’re reset correctly.

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

									Mounting
For Max. Cable Lg., ft.	No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Actuation Force, lbs.	Conduit Trade Size	Fasteners Included	Hole Dia. (No. of Holes)	Hole Thread Size (No. of Holes)	Features		Each
With Screw Terminals
1 Direction (NEMA 4; NEMA 7; NEMA 9; NEMA 13; NEC Class I Divisions 1, 2 Groups B, C, D; NEC Class II Divisions 1, 2 Groups E, F, G)
200	1	1 Off (Normally Open) or 1 On (Normally Closed)	3	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	250V DC/600V AC	25	1/2	No	1/4" (2)	5/16"-18 (2)	Tension Indicator	0000000	000000000
200	2	2 On (Normally Closed)	4	DPST-NC	10 A @ 600 V AC, 10 A @ 250 V DC	250V DC/600V AC	25	1/2	No	1/4" (2)	5/16"-18 (2)	Tension Indicator	0000000	00000000

Cable-Pull Switches

One Direction

Two-Direction

Connect these switches to a cable to control circuits from a distance. They're typically used to turn off production lines and material handling systems. Mount in any position and tug on the cable to send a switching signal. Equipment will not start up again until the switch is manually reset.

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

With Screw Terminals
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Actuation Force, lbs.	Conduit Trade Size	Mounting Fasteners Included		Each
1 Direction (NEMA 1)
1	1 On (Normally Closed)	Stays Switched (Maintained)	2	SPST-NC	6 A @ 120 V AC, 3 A @ 240 V AC; 0.6 A @ 125 V DC	600V AC 600V DC	2-6	1/2	Yes	0000000	0000000
2 Direction (IP66, NEMA 4X)
1	1 Off (Normally Open) or 1 On (Normally Closed)	Stays Switched (Maintained)	3	SPDT	5 A @ 125 V AC, 1 A @ 24 V DC	60V DC 250V AC	0.2-2	1/2	No	00000000	000000

Roller-Conveyor-Mount Photoelectric Switches

Direct Sensing Switch
with Solenoid Valve
and Cable Lead

Reflector Switch with
Solenoid Valve
and Cable Lead

Direct Sensing Switch with Cable Lead

A slim design and a light beam that’s angled upwards allow these switches to sense objects from between conveyor rollers. Because they’re photoelectric, they can detect objects that are moving quickly. All are adjustable, so you can increase the intensity of the light beam to sense shiny or translucent objects. These switches have an M12 connection to quickly connect and disconnect from your switch. Add cables (sold separately) to switches with a plug to wire them into your setup.

Switches with an NFC connection can be programmed and calibrated through a free app on your smartphone. This way, you can leave the switch installed while calibrating it.

Direct sensing switches project light onto an object and then detect the reflection to actuate. The transmitter and receiver are in the same housing, so these switches fit in tight spaces. They require a quick-clip mounting bracket (sold separately).

Reflector switches detect an object when it passes between the switch and the reflector, interrupting the beam. They have a longer sensing distance than direct-sensing switches. They can be mounted with an L-shaped mounting bracket (sold separately).

IP65 switches protect against dust and splashing water. IP67 switches protect against dust and temporary submersion.

Switches with a solenoid valve allow you to control air-powered conveyor drives directly from the switch.

Switches with a conveyor on/off switch allow you to control when conveyors start and stop—no need for a separate controller.

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

Switches												Mounting Brackets		Reflectors
Light Beam Switch Operation	Max. Sensing Distance, ft.	Input Voltage	Current Output	Signal Output Type	Lg.	Wd.	Ht.	Cable Lead Lg., ft.	Features		Each		Each		Each
With 4-Pole Micro M12 Socket
Direct Sensing Switch with Infrared Light Beam (IP65)
On When Object Absent	2.5	21V DC-30V DC	200mA	PNP	1 13/16"	11/16"	3 7/8"	6 1/2	Solenoid Valve, Conveyor On/Off Switch	00000000	0000000	00000000	000000	000000	00
Reflector Switch with Visible Light Beam (IP65)
On When Object Present	21	18V DC-30V DC	200mA	PNP	1 13/16"	11/16"	3 7/8"	4 1/2	Solenoid Valve, Conveyor On/Off Switch	00000000	000000	00000000	00000	00000000	000000
With 4-Pole Micro M12 Socket and NFC Connection
Direct Sensing Switch with Infrared Light Beam (IP65)
On When Object Present	2.5	21V DC-30V DC	200mA	PNP	1 13/16"	11/16"	3 7/8"	6 1/2	Solenoid Valve, Conveyor On/Off Switch	00000000	000000	00000000	00000	000000	00
Direct Sensing Switch with Infrared Light Beam (IP67)
On When Object Present	2.5	12V DC-30V DC	200mA	PNP	1 13/16"	11/16"	3 7/8"	6 1/2	Conveyor On/Off Switch	00000000	000000	00000000	00000	000000	00