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Hazardous Location 30 mm Panel-Mount Push-Button Switches
Actuate these switches with a quick push. A housing seals in anything that could ignite flammable material, so you can use them where ignitable gas and dust may be present. You’ll know they’re safe because they meet NEC Class I Div. 2, Groups B, C, D for hazardous locations. Install them in a standard panel cutout.
Mushroom switches have a button that sticks out from the panel. Because they’re easy to identify and actuate, these switches are often used to stop equipment. They have a twist reset, so they’ll return to their starting position when you rotate the button.
Switches come with a contact block for each number of circuits they control. 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.

No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Actuator Color | Switching Current @ Voltage | Max. Voltage | Dia. | For Max. Panel Thick. | Dp. Behind Panel | For Max. No. of Contact Blocks | Each | |
Plastic Base with Screw Terminals | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mushroom with Twist Reset | |||||||||||||
1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 0000000 |
1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
2 | 2 Off (Normally Open) | Stays Switched (Maintained) | 4 | DPST-NO | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |

For Push-Button Style | Material | For Panel Cutout Dia. | For Panel Cutout Dia. | Each | |
Mushroom | Plastic | 30 mm | 1 3/16" | 0000000 | 000000 |
Aluminum Enclosed Push-Button Switches
A lightweight yet durable alternative to stainless steel enclosed switches, these aluminum enclosed switches withstand corrosion, oil, and washdowns. They can mount directly to a wall when there’s not enough room in an electrical panel. The enclosure has knockouts so you can easily connect it to conduit fittings and cord grips.
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 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
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 |
Hazardous Location Enclosed Push-Button Switches




Use these switches where ignitable gas and dust may be present. They're rated for use in hazardous locations.
For technical drawings and 3-D models, click on a part number.
Mounting | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Message (Actuator Color) | No. of Circuits Controlled per Button | Switch Starting Position | Switch Action | No. of Terminals per Button | Industry Designation | Switching Current @ Voltage | Max. Voltage | Conduit Trade Size | Fasteners Included | No. of Holes | Hole Dia. | Each | |
With Screw Terminals | |||||||||||||
1 Mushroom Button | |||||||||||||
Stop (Red) | 1 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 10 A @ 120 V AC | 600V AC | 3/4 | No | 2 | 3/16" | 0000000 | 0000000 |
1 Flush Button | |||||||||||||
Start (Black) | 1 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | 4 | DPST-1NO/1NC | 10 A @ 120 V AC | 600V AC | 3/4 | No | 2 | 5/16" | 0000000 | 000000 |
Hazardous Location 30 mm Panel-Mount Lever Switches
Made for areas where ignitable gas and vapor may be present, these switches have a housing that seals in anything that could spark flammable material. You'll know they're safe because they're NEC Class 1, Division 2, Groups A, B, C, and D certified for hazardous locations. They're also UL and C-UL listed and CSA certified. They require you to grip and twist a lever to turn them on or off, so they won’t accidentally actuate if you bump into them. Mount into a standard panel cutout.
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.

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 | Each | |
2 Position | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
With Screw Terminals | ||||||||||||
1 1/16" | 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 2 | SPST-NO | 1.5 A @120 V AC, 0.55 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 0000000 |
1 1/16" | 1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | 1.5 A @120 V AC, 0.55 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
1 1/16" | 1 | 1 On (Normally Closed) | Springs Back (Momentary) | 2 | SPST-NC | 1.5 A @120 V AC, 0.55 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
1 1/16" | 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | 1.5 A @120 V AC, 0.55 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
1 1/16" | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 6 A @120 V AC, 1.1 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
3 Position | ||||||||||||
With Screw Terminals | ||||||||||||
1 1/16" | 2 | 2 Off (Normally Open) | Stays Switched (Maintained) | 4 | DPST-NO | 1.5 A @120 V AC, 0.55 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
1 1/16" | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 6 A @120 V AC, 1.1 A @ 125 V DC | 600V AC 300V DC | 1 3/8" | 3 1/16" | 2 | 0000000 | 000000 |
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 |
Hazardous Location 30 mm Panel-Mount Key Switches
Designed for use near ignitable gases, fibers, and dust, these switches have a housing that seals in anything that could ignite flammable material. You’ll know they’re safe because they’re NEC Class 1, Division 2 Groups A-D and NEC Zone 1 Groups IIC-IIA certified for hazardous locations. These switches require a key to turn circuits on or off, preventing accidental actuation and limiting access to sensitive equipment. Since they’re keyed alike, all open with the same key. Install them in a standard panel cutout.
Switches that control two circuits come with a contact block for each circuit.
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.

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 | Key Removal Position | Each | |
2 Position with Plastic Base | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Screw Terminals | ||||||||||||
1 | 1 Off (Normally Open) | Springs Back (Momentary) | 2 | SPST-NO | 6 A @ 120 V AC, 4 A @ 24 V DC | 500V AC/500V DC | 1 9/16" | 2 5/8" | 3 | Left | 0000000 | 0000000 |
1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 2 | SPST-NO | 6 A @ 120 V AC, 4 A @ 24 V DC | 500V AC/500V DC | 1 9/16" | 2 5/8" | 3 | Left, Right | 0000000 | 000000 |
1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | 6 A @ 120 V AC, 4 A @ 24 V DC | 500V AC/500V DC | 1 9/16" | 2 5/8" | 3 | Left, Right | 0000000 | 000000 |
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 6 A @ 120 V AC, 4 A @ 24 V DC | 500V AC/500V DC | 1 9/16" | 2 5/8" | 3 | Left, Right | 0000000 | 000000 |
3 Position with Plastic Base | ||||||||||||
Screw Terminals | ||||||||||||
2 | 2 Off (Normally Open) | Stays Switched (Maintained) | 4 | DPST-NO | 6 A @ 120 V AC, 4 A @ 24 V DC | 500V AC/500V DC | 1 9/16" | 2 5/8" | 3 | Left, Center, Right | 0000000 | 000000 |

Key Number | Each | |
HW9Z-SKP | 0000000 | 000000 |
Circuit Board Magnetically Actuated Switches
Mounted to your circuit board, these switches trigger when magnetic components get near, and reset as they move away. They’re often used to turn on electronics, such as starting up a laptop when you open it. To install, push the contacts through holes in a circuit board, then solder them in place.
Switches with a plastic housing withstand impact better than switches with a glass housing. The plastic also forms an airtight seal to block out contaminants. Use them in dusty or dirty environments where an optical switch might fail.
For technical drawings and 3-D models, click on a part number.

No. of Circuits Controlled | Switch Starting Position | Industry Designation | Switching Current @ Voltage | Max. Voltage | Wire Dia. | Lg. | Wd. | Ht. | Protection Type | Environmental Rating | Specifications Met | Includes | Pkg. Qty. | Pkg. | |
1 | 1 Off (Normally Open) | SPST-NO | 0.5 A @ 200 V DC | 250V DC | 0.02" | 0.6" | 0.1" | 0.1" | Hermetically Sealed | NEC Class I Division 2 Groups A, B, C, D | UL Recognized Component, C-UL Recognized Component | Magnet | 20 | 0000000 | 000000 |
Hazardous Location Relays





Sealed for safety, these relays are a good choice for hazardous locations where combustible or corrosive gases may be present.
Relays with screw terminals or spring-clamp terminals are considered interface relays, so they’re placed between your controller and components to isolate the input and output circuits. This means they protect your component from voltage spikes while amplifying the relay’s signal and reducing interference for reliable transmission. They are often used for switching applications, such as small motors and pilot lights. The included relay socket mounts on 35 mm DIN rail (also known as DIN 3 rail). Relays with spring-clamp terminals connect and disconnect to wires without needing to turn screws. With no screws to shake loose with vibration, the terminals hold tight over time.
Relays with circular-pin terminals or quick-disconnect terminals are hermetically sealed—completely air- and watertight—to shield internal parts from gases, moisture, and other contaminants. They plug into relay sockets (sold separately) for easy installation.
Relay sockets mount to 35 mm DIN rail (also known as DIN 3 rail) or flat surfaces.
For technical drawings and 3-D models, click on a part number.
Relays | Relay Sockets | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of Terminals | Input Voltage | Control Current, mA | Switching Current @ Voltage | Max. Switching Voltage | hp @ Switching Voltage | Ht. | Wd. | Dp. | Quick-Disconnect Tab Wd. | Environmental Rating | Each | Each | ||
Screw Terminals | ||||||||||||||
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||
5 | 12V AC, 12V DC | 15.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 2.9" | 0.2" | 3.5" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 00000000 | 000000 | 000000 | 00 |
5 | 12V AC, 12V DC | 29 | 12 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 2.9" | 0.6" | 3.5" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 00000000 | 00000 | 000000 | 00 |
5 | 24V AC, 24V DC | 13.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 3.5" | 0.2" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 24V AC, 24V DC | 13.5 | 16 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 48V AC, 48V DC | 4 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 3.5" | 0.2" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 48V AC, 48V DC | 4 | 16 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 120V AC, 120V DC | 3.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 3.5" | 0.2" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 120V AC, 120V DC | 3.5 | 16 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 240V AC, 240V DC | 3.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 3.5" | 0.2" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 240V AC, 240V DC | 3.5 | 16 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
2 Circuits Controlled with 2 Off (Normally Open) or 2 On (Normally Closed)—DPDT | ||||||||||||||
8 | 24V AC, 24V DC | 13.5 | 8 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
8 | 48V AC, 48V DC | 4 | 8 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
8 | 120V AC, 120V DC | 3.5 | 8 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
8 | 240V AC, 240V DC | 3.5 | 8 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 3.5" | 0.6" | 2.9" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
Spring-Clamp Terminals | ||||||||||||||
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||
5 | 12V AC, 12V DC | 15.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 2.9" | 0.2" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 12V AC, 12V DC | 29 | 12 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 2.9" | 0.6" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 24V AC, 24V DC | 13.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 2.9" | 0.2" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 24V AC, 24V DC | 20 | 12 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 2.9" | 0.6" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 120V AC, 120V DC | 3.5 | 6 A @ 240 V AC/30 V DC | 400V AC/125V DC | __ | 2.9" | 0.2" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
5 | 120V AC, 120V DC | 4 | 12 A @ 240 V AC/24 V DC | 400V AC/300V DC | __ | 2.9" | 0.6" | 3.7" | __ | IP20; NEC Class I Division 2 Groups A, B, C, D | 0000000 | 00000 | 000000 | 00 |
Circular-Pin Terminals—Hermetically Sealed | ||||||||||||||
2 Circuits Controlled with 2 Off (Normally Open) or 2 On (Normally Closed)—DPDT | ||||||||||||||
8 | 120V AC | 10 | 12 A @ 120 V AC/24 V DC | 300V AC | 1/3 hp @ 120 V AC | 1.6" | 1.4" | 2.1" | __ | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 000000 | 0000000 | 00000 |
8 | 24V DC | 38 | 12 A @ 120 V AC/24 V DC | 300V AC | 1/3 hp @ 120 V AC | 1.6" | 1.4" | 2.1" | __ | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 000000 | 0000000 | 0000 |
3 Circuits Controlled with 3 Off (Normally Open) or 3 On (Normally Closed)—3PDT | ||||||||||||||
11 | 120V AC | 100 | 12 A @ 120 V AC/240 V AC | 300V AC | 1/3 hp @ 120 V AC | 1.6" | 1.4" | 2.1" | __ | NEC Class I Division 2 Groups A, B, C, D | 00000000 | 000000 | 0000000 | 00000 |
Quick-Disconnect Terminals—Hermetically Sealed | ||||||||||||||
4 Circuits Controlled with 4 Off (Normally Open) or 4 On (Normally Closed)—4PDT | ||||||||||||||
14 | 120V AC | 100 | 3 A @ 120 V AC/240 V AC | 240V AC | 1/10 hp @ 120 V AC | 1.2" | 0.9" | 1.3" | 0.125" | NEC Class I Division 2 Groups A, B, C, D | 0000000 | 000000 | 0000000 | 00000 |
Differential Pressure Switches with Dial Indicator for Liquids

To check the difference in pressure between two points, these switches have a dial indicator that shows differential pressure in real time. The dial indicator operates independently of the switch. You’ll sometimes see these switches used to indicate a filter is clogged in a pump or cooling system. When the differential pressure reaches your setpoint, they turn equipment on and off, activate automated controls, or signal alarms. They are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on (normally open) or from on to off (normally closed).
Rated NEMA 4X, these switches protect against dirt, washdown, and corrosion. They are also rated IP65 for protection from dust and rinsing. All are CSA certified, so they meet Canadian safety standards.
Setpoint | Approximate Difference Between Setpoint and Reset Point | Max. Input Pressure, psi | Accuracy | Max. Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Screw Terminals | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1/4 NPT Female Pipe Connection | ||||||||||
0-25 in. of H2O | 5 in. of H2O | 1,500 | ±2% | 250 mA @ 120 V AC | -20° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 0000000 | 0000000 |
0-1 psi | 0.2 psi | 1,500 | ±2% | 250 mA @ 120 V AC | -20° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 0000000 | 000000 |
0-5 psi | 1 psi | 1,500 | ±2% | 250 mA @ 120 V AC | -20° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 0000000 | 000000 |
3-15 psi | 3 psi | 5,000 | ±2% | 250 mA @ 120 V AC | -40° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 00000000 | 000000 |
6-30 psi | 6 psi | 5,000 | ±2% | 250 mA @ 120 V AC | -40° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 00000000 | 000000 |
10-50 psi | 10 psi | 5,000 | ±2% | 250 mA @ 120 V AC | -40° to 175° | Brass | Cleaning Solutions, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | IP65; NEC Class I Division 2 Groups A, B, C, D; NEC Class II Division 2 Groups F, G; NEMA 4X | 00000000 | 000000 |