Choosing an Electrical Switch
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Miniature Toggle Switches
Maximize the space in a panel—these switches are half the size of most toggle switches.
Switches with an on-on or on-(on) position designation alternate power between sets of terminals.
For technical drawings and 3-D models, click on a part number.
No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Position Designation | Switching Current @ Voltage | Max. Voltage | Dp. Behind Panel | Mounting Hardware Included | Choose a Wire Connection Type | Each | |
2 Position with Rounded Toggle | ||||||||||||
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For 1/4" Panel Cutout Dia. | ||||||||||||
1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | On-Off | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | 0.37" | Yes | Solder Lugs | 0000000 | 000000 |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | On-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | 3 | SPDT | On-(On) | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPDT | On-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | 6 | DPDT | On-(On) | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | 0.62" | Yes | Solder Lugs | 0000000 | 00000 |
3 | 3 Off (Normally Open) or 3 On (Normally Closed) | Stays Switched (Maintained) | 9 | 3PDT | On-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | 0.66" | Yes | Solder Lugs | 0000000 | 00000 |
4 | 4 Off (Normally Open) or 4 On (Normally Closed) | Stays Switched (Maintained) | 12 | 4PDT | On-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | 0.66" | Yes | Solder Lugs | 0000000 | 00000 |
3 Position with Rounded Toggle | ||||||||||||
For 1/4" Panel Cutout Dia. | ||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | On-Off-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | 3 | SPDT | (On)-Off-(On) | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPDT | On-Off-On | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 | |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | 6 | DPDT | (On)-Off-(On) | 6 A @ 125 V AC, 4 A @ 30 V DC | 30V DC 250V AC | __ | Yes | 0000000 | 00000 |
Low-Voltage 19 mm Panel-Mount Push-Button Switches
Operate low-voltage devices that require less than 48 volts, such as doorbells and buzzers. These switches have one input terminal and three output terminals to control up to three devices at once.
For technical drawings and 3-D models, click on a part number.
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 | Each | |
Metal Base with Screw Terminals | |||||||||||
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Snap In | |||||||||||
1 | 1 Off (Normally Open) | Springs Back (Momentary) | 4 | SPST-NO | Black | 4 A @ 24 V AC, 1 A @ 24 V DC | 48V AC 48V DC | 1" | 1 1/16" | 00000000 | 000000 |
Aluminum Enclosed Push-Button Switches
More lightweight than steel, these aluminum enclosed switches are rated NEMA 4X for protection from corrosion and washdowns. The push buttons are rated NEMA 13. The enclosures are rated IP66 and IP67, and are ATEX, IECEx, and CSA Certified for use in hazardous locations.
For technical drawings and 3-D models, click on a part number.
Actuator Color (Industry Designation) | No. of Circuits Controlled per Button | Switch Starting Position | Switch Action | No. of Terminals per Button | Switching Current @ Voltage | Max. Voltage | Conduit Trade Size | Environmental Rating | Each | |
With Screw Terminals | ||||||||||
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1 Button | ||||||||||
1 Green Button with Vertical Line (SPST-NO) | 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 2 | 10 A @ 120 V AC, 4 A @ 24 V DC | 600V AC 600V DC | 1/2 | IP66 IP67 NEMA 4X NEMA 13 IEC Zone 0 Groups IIC, IIB, IIA IEC Zone 20 Groups IIIC, IIIB, IIIA NEC Class I Division 2 Groups A, B, C, D NEC Zone 1 Groups IIC, IIB, IIA | 0000000 | 0000000 |
1 Red Button with Circle (SPST-NC) | 1 | 1 On (Normally Closed) | Springs Back (Momentary) | 2 | 10 A @ 120 V AC, 4 A @ 24 V DC | 600V AC 600V DC | 1/2 | IP66 IP67 NEMA 4X NEMA 13 IEC Zone 0 Groups IIC, IIB, IIA IEC Zone 20 Groups IIIC, IIIB, IIIA NEC Class I Division 2 Groups A, B, C, D NEC Zone 1 Groups IIC, IIB, IIA | 0000000 | 000000 |
2 Buttons | ||||||||||
1 Green Button with Vertical Line (SPST-NO), 1 Red Button with Circle (SPST-NC) | 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 2 | 10 A @ 120 V AC, 4 A @ 24 V DC | 600V AC 600V DC | 1/2 | IP66 IP67 NEMA 4X NEMA 13 IEC Zone 0 Groups IIC, IIB, IIA IEC Zone 20 Groups IIIC, IIIB, IIIA NEC Class I Division 2 Groups A, B, C, D NEC Zone 1 Groups IIC, IIB, IIA | 0000000 | 000000 |
3 Buttons | ||||||||||
1 Green Button with Up Arrow (SPST-NO), 1 Red Button with Circle (SPST-NC), 1 Green Button with Down Arrow (SPST-NO) | 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 2 | 10 A @ 120 V AC, 4 A @ 24 V DC | 600V AC 600V DC | 1/2 | IP66 IP67 NEMA 4X NEMA 13 IEC Zone 0 Groups IIC, IIB, IIA IEC Zone 20 Groups IIIC, IIIB, IIIA NEC Class I Division 2 Groups A, B, C, D NEC Zone 1 Groups IIC, IIB, IIA | 0000000 | 000000 |
Miniature Rocker Switches
Maximize space in a panel—these switches are smaller than most standard rocker switches.
Switches with an on-on position designation alternate power between sets of terminals.
For technical drawings and 3-D models, click on a part number.
Wire Leads | ||||||||||||
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No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Position Designation | Switching Current @ Voltage | Max. Voltage | No. of | Lg. | Color | Each | |
2 Position with Solder Lugs | ||||||||||||
For 3/4" Ht.×9/32" Wd. Panel Cutout | ||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | On-On | 6 A @ 125 V AC, 4 A @ 28 V DC | 30V DC 250V AC | __ | __ | Black | 0000000 | 00000 |
2 Position with Wire Leads | ||||||||||||
For 3/4" Ht.×9/32" Wd. Panel Cutout | ||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | On-On | 6 A @ 125 V AC, 4 A @ 28 V DC | 30V DC 250V AC | 3 | 12" | Black | 0000000 | 00000 |
3/4" Panel-Mount Key Switches
Prevent accidental activation and limit access—these switches require a key to turn circuits on or off.
Keyed alike switches all open with the same key.
For technical drawings and 3-D models, click on a part number.
Switches | Replacement Keys | |||||||||||||
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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 Solder Lugs | ||||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center | 0000000 | 000000 | 000000 | 00000 |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center, Right | 0000000 | 00000 | 000000 | 0000 |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPDT | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center | 0000000 | 00000 | 000000 | 0000 |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPDT | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center, Right | 0000000 | 00000 | 000000 | 0000 |
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 | |
3 Position with Metal Base | ||||||||||||
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Keyed Alike with Solder Lugs | ||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPST-NO | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Left, Center, Right | 0000000 | 000000 |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | SPST-NO | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center | 0000000 | 00000 |
2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | 8 | DPDT | 4 A @ 125 V AC/24 V DC | 28V DC 125V AC | 7/8" | 1 1/16" | 2 | Center | 0000000 | 00000 |
Washdown 3/4" Panel-Mount Key Switches
Rated NEMA 4, these switches are protected from washdowns. They require a key to turn circuits on or off, limiting access to sensitive equipment.
Keyed alike switches all open with the same key.
Keyed differently switches each open with a unique key.
For technical drawings and 3-D models, click on a part number.
Key Switches | |||||||||||||||
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Key | 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 | Removal Position | Environmental Rating | Each | Each | ||
2 Position with Metal Base | |||||||||||||||
Keyed Alike with Solder Lugs | |||||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | 4 A @ 125 V AC/28 V DC | 28V DC 125V AC | 7/8" | 1 1/4" | 2 | Center, Right | NEMA 4, IP66 | 0000000 | 000000 | 000000 | 00000 |
Keyed Differently with Solder Lugs | |||||||||||||||
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | 4 A @ 125 V AC/28 V DC | 28V DC 125V AC | 7/8" | 1 1/4" | 2 | Center, Right | NEMA 4, IP66 | 0000000 | 00000 | 000000 | 00 |
Miniature 15/32" Panel-Mount Key Switches
Maximize space in a panel with these miniature switches. They require a key to turn circuits on or off, limiting access to sensitive equipment. All are keyed alike, so they open with the same key.
For technical drawings and 3-D models, click on a part number.
Wire Leads | |||||||||||||||
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No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Dia. | Dp. Behind Panel | Quick-Disconnect Tab Width | No. of | Lg. | No. of Keys Included | Key Removal Position | Each | |
2 Position with Metal Base | |||||||||||||||
Keyed Alike with Quick-Disconnect Terminals | |||||||||||||||
1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | 4 A @ 125 V AC/24 V DC | 28V DC 250V AC | 9/16" | 1 5/16" | 0.11" | __ | __ | 2 | Center | 00000000 | 000000 |
Keyed Alike with Wire Leads | |||||||||||||||
1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | 4 A @ 125 V AC/24 V DC | 28V DC 250V AC | 9/16" | 1 5/16" | __ | 2 | 6" | 2 | Center | 00000000 | 00000 |
Miniature Switch Mats
With a smaller footprint than other switch mats, these fit in confined spaces.
Wire Leads | ||||||||||||||||
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Wd. | Lg. | Thick. | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Actuation Force, lbs. | Max. Pressure, psi | Color | No. of | Lg., ft. | Ga. | Material | Each | |
With Wire Leads | ||||||||||||||||
6" | 8" | 3/8" | 1 | 1 Off (Normally Open) | Springs Back (Momentary) | SPST-NO | 4 A @ 24 V AC/24 V DC | 10-15 | 3,000 | Black | 2 | 15 | 18 | Vinyl Plastic | 0000000 | 0000000 |
Low-Profile Wet-Location Limit Switches
Stack these slim switches together, or fit them into tight spaces. They're rated IP67 for protection from temporary submersion. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and elevators.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.2" | 4 | 9.5 | 1.6" | 1.9" | 0.6" | Aluminum | 0000000 | 0000000 |
Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Cross Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 2" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Wobble Stick Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
G | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 3.6" | 4 | 9.5 | 1.6" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |
Sealed Wet-Location Limit Switches
Sealed actuators prevent these switches from jamming, even when exposed to sand, mud, or dirt. They're rated IP67 for temporary submersion. They have a slim design and can be stacked together or fit into narrow spaces. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They're often used on conveyor systems and elevators.
For technical drawings and 3-D models, click on a part number.
Housing | |||||||||||||||||
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No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | |||||||||||||||||
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 0000000 |
Roller Plunger Actuator Style | |||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 1" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |
Cross Roller Plunger Actuator Style | |||||||||||||||||
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 1" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |
Compact Safety Limit Switches
Shorter and thinner than other safety limit switches, these are sized to fit tight spaces. They protect machinery and ensure the safety of personnel. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations. All are NEMA and IP rated for protection from washdowns.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | Lg. | Ht. | Dp. | Housing Material | Environmental Rating | Each | |
Plunger Actuator Style | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 0.5" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 000000 |
Roller Plunger Actuator Style | ||||||||||||||||
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 1.2" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 00000 |
Roller Lever Actuator Style | ||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 1.1" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 000000 |
Frame-Mounted Safety Switches
Also known as interlock switches, these ensure the safety of personnel by automatically shutting off power to machinery when an access door opens. Mount the switch to the door frame and mount a key to the door so that the key is inserted into the switch when the door is closed. When the door opens, the key is removed from the switch and the machine shuts down. They’re often used with machine guards.
Style A-F have positive-force, normally closed contacts that will open a circuit when the switch is actuated even if a spring fails or the contacts stick.
IP67 rated switches protect against temporary submersion.
Flexible keys (sold separately) pivot 15° to make it easier to align with the switch during installation.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Ht. | Wd. | Dp. | Conduit Trade Size | Conduit Thread Size | Key Included | Environmental Rating | Each | |
Wire Lead Connection with Positive-Force Normally Closed Contacts | ||||||||||||||||
A | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | DPST-1NO/1NC | 8 A @ 120 V AC, 4 A @ 24 V DC | 24V DC 250V AC | 3.3" | 1.2" | 1.2" | __ | M16 | Yes | IP67 | 00000000 | 0000000 |
Screw Terminal Connection with Positive-Force Normally Closed Contacts | ||||||||||||||||
C | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 3 | 3PST-1NO/2NC | 8 A @ 120 V AC, 4 A @ 24 V DC | 250V DC 600V AC | 3.5" | 2.1" | 1.2" | 1/2 | __ | Yes | IP67 | 00000000 | 000000 |
C | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | 3PST-1NO/2NC | 4 A @ 230 V AC, 4 A @ 24 V DC | 24V DC 500V AC | 3.5" | 2" | 1.2" | __ | M16 | Yes | IP67 | 00000000 | 000000 |
Screw Terminal Connection with Positive-Force Normally Closed Contacts and Rotating Head | ||||||||||||||||
F | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | 3PST-1NO/2NC | 10 A @ 230 V AC, 4 A @ 24 V DC | 24V DC 250V AC | 4.3" | 1.6" | 1.4" | __ | M20 | No | IP67 | 00000000 | 000000 |
Access-Delay Frame-Mounted Safety Switches
Delay access to hazardous areas until conditions are safe; use these switches with machines that take time to stop after they are turned off. Mount the switch to the door frame and mount the key to the door so that the key is inserted into the switch when the door is closed. When the door is pulled, the key is held in place with 225 lbs. of force until the switch receives a signal from a time-delay relay, motion sensor, or position sensor (not included) that the machine’s motion has stopped. After the motion has stopped, the key can be removed from the switch, releasing the access door. They’re often used with machine guards. All have positive-force, normally-closed contacts that will open a circuit when the switch is actuated even if a spring fails or the contacts stick. They’re rated for protection from washdowns and temporary submersion.
Style C has a key entry on two opposite sides of the switch.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Input Voltage | Holding Force, lbs. | Ht. | Wd. | Dp. | Wire Connection Type | Conduit Trade Size | Each | |
Positive-Force Normally Closed Contacts and Rotating Head | ||||||||||||||||
C | 4 | 2 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 8 | 4PST-2NO/2NC | 4 A @ 120 V AC, 4 A @ 24 V DC | 240V AC 24V DC | 24V AC, 24V DC | 225 | 7.6" | 1.2" | 1.6" | Screw Terminals | 1/2 | 0000000 | 0000000 |