Protects From Protects From |
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Maximum Setpoint Maximum Setpoint |
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For Use With For Use With |
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Minimum Setpoint Minimum Setpoint |
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Maximum Pressure Maximum Pressure |
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Scale Scale |
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Housing Material Housing Material |
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Switch Starting Position Switch Starting Position |
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Gasket Material Gasket Material |
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Specifications Met Specifications Met |
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About Pressure Switches
More
Low Differential Pressure Switches
- For Use With: Air
- Connection Material: Aluminum
- Connection: NPT Female
- Switching Current: 15A
- Switching Voltage: 120V AC/240V AC/480V AC
Often used with ovens, dryers, and HVAC systems, these switches detect small differences in pressure. When the differential pressure exceeds your setpoint, the switch is activated. Use them to automate controls or activate an alarm in your process. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).
Temperature Range, °F | Conduit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Setpoint, in. of H2O | Approximate Difference Between Setpoint and Reset Point, in. of H2O | Max. Pressure, in. of H2O | Accuracy | Pipe Size | Environment | Process | For Trade Size | Connection Gender | Specifications Met | Each | |
Zinc-Plated Steel Housing | |||||||||||
| 0.07-0.15 | 0.04 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 000000 |
| 0.15-0.55 | 0.1 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 00000 |
| 0.4-1.6 | 0.16 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 00000 |
| 1.4-5 1/2 | 0.3 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 00000 |
| 3-11 3/4 | 0.4 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 00000 |
| 4-20 | 0.5 | 45 | ± 3% | 1/8 | -30° to 180° | -30° to 180° | 7/8 | Female | CE Marked, CSA Certified, FM Approved, UL Listed | 00000000 | 00000 |
Differential Pressure Switches
- For Use With: Air, Hydraulic Fluid (Petroleum Based), Water
- Connection Material: Brass
- Connection: NPT Female
- Switching Current: 5A
- Switching Voltage: 120V AC/240V AC
These switches operate based on the difference in pressure between two process lines. When the differential pressure exceeds your setpoint, the switch is activated. Often used to indicate clogged filters, they are designed to automate controls or activate an alarm in your process. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). They are rated NEMA 1 for indoor use.
Temperature Range, °F | Conduit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Setpoint, psi | Approximate Difference Between Setpoint and Reset Point, psi | Max. Pressure, psi | Accuracy | Pipe Size | Environment | Process | For Trade Size | Connection Gender | Specifications Met | Each | |
300 Series Stainless Steel and Polyester Plastic Housing | |||||||||||
| 1-10 | 0.75 | 150 | ±1% | 1/4 | 30° to 160° | 0° to 200° | 7/8 | Female | C-UL Listed, CE Marked, UL Listed | 00000000 | 0000000 |
| 4-45 | 1 | 150 | ±1% | 1/4 | 30° to 160° | 0° to 200° | 7/8 | Female | C-UL Listed, CE Marked, UL Listed | 00000000 | 000000 |
Washdown Differential Pressure
Switches with Dial Indicator
- For Use With: Air, Hydraulic Fluid, Water
- Connection Material: Brass
- Connection: NPT Female
- Switching Current: 0.25A
- Switching Voltage: 120V AC
Not only are these switches rated NEMA 4X for protection from dirt, washdowns, and corrosion, they also have an indicator for additional monitoring at the source of your application. Switches operate based on the difference in pressure between two process lines. When the differential pressure exceeds your setpoint, the switch is activated. Use them to automate controls or activate an alarm in your process. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).
Temperature Range, °F | Conduit | Lens | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Setpoint, psi | Approximate Difference Between Setpoint and Reset Point, psi | Max. Pressure, psi | Accuracy | Pipe Size | Environment | Process | For Trade Size | Connection | Dia. | Material | Specifications Met | Each | |
Brass Housing | |||||||||||||
| 3-15 | 3 | 5,000 | ±2% | 1/4 | -40° to 175° | -40° to 175° | 1/2 | NPT Female | 3" | Glass | CSA Certified | 00000000 | 0000000 |
| 6-30 | 6 | 5,000 | ±2% | 1/4 | -40° to 175° | -40° to 175° | 1/2 | NPT Female | 3" | Glass | CSA Certified | 00000000 | 000000 |
| 10-50 | 10 | 5,000 | ±2% | 1/4 | -40° to 175° | -40° to 175° | 1/2 | NPT Female | 3" | Glass | CSA Certified | 00000000 | 000000 |
Washdown Differential Pressure Switches
- For Use With: Air, Hydraulic Fluid (Petroleum Based), Water
- Connection Material: Brass
- Connection: NPT Female
- Switching Current: 5A
- Switching Voltage: 120V AC/240V AC
These switches are rated NEMA 4 for protection from dirt and washdowns. They operate based on the difference in pressure between two process lines. When the differential pressure exceeds your setpoint, the switch is activated. Often used to indicate clogged filters, they are designed to automate controls or activate an alarm in your process. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).
Temperature Range, °F | Conduit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Setpoint, psi | Approximate Difference Between Setpoint and Reset Point, psi | Max. Pressure, psi | Accuracy | Pipe Size | Environment | Process | For Trade Size | Connection | Specifications Met | Each | |
300 Series Stainless Steel and Polyester Plastic Housing | |||||||||||
| 1-10 | 0.75 | 150 | ±1% | 1/4 | 30° to 160° | 0° to 200° | 7/8 | NPT Female | C-UL Listed, CE Marked, UL Listed | 00000000 | 0000000 |
| 4-45 | 1 | 150 | ±1% | 1/4 | 30° to 160° | 0° to 200° | 7/8 | NPT Female | C-UL Listed, CE Marked, UL Listed | 00000000 | 000000 |
Air-Pressure-Actuated HVAC Switches
Often used to detect clogged air filters and iced air conditioner coils, these switches sense small changes in pressure between two points in your duct.
| Setpoint, in. of H2O | Accuracy, in. of H2O | Temperature Range, °F | Current | Electrical Connection Type | Switch Type | Max. Pressure, psi | Low Pressure Side Connection | High Pressure Side Inside Connection | High Pressure Side Outside Connection | Each | |
Diaphragm Sensor | |||||||||||
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| 0.05-5 | 0.025 | -40° to 165° | 2.9 A @ 240 V AC 5.8 A @ 120 V AC | Hardwire | SPDT | 1 | 1/8 NPT Female | 1/8 NPT Female | 1/2 NPSM | 000000 | 0000000 |
| 0.05-5 | 0.04 | -40° to 165° | 4.9 A @ 240 V AC 9.8 A @ 120 V AC | Hardwire | SPDT | 1 | 1/8 NPT Female | 1/8 NPT Female | 1/2 NPSM | 000000 | 000000 |