About Pressure Switches
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Compact Pressure Switches
With a round body that’s at least one-third thinner than traditional pressure switches, these fit in tight, cramped spaces. They’re often built into pumps and hydraulic systems with limited space in order to turn equipment on and off, activate automated controls, or signal alarms when they reach a set pressure. These switches are single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). They also meet at least one American, Canadian, or European safety standard.
Switches with an internal setpoint adjustment have a sliding cover to prevent accidental setting changes.
NEMA 6 and IP67 rated switches seal out dust and water from washdowns and temporary submersion.
| Setpoint, psi | Approximate Difference Between Setpoint and Reset Point, psi | Max. Continuous Pressure, psi | Max. Short-Term Pressure, psi | Accuracy | Max. Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
1/4 NPT Male Pipe Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Internal Setpoint Adjustment | |||||||||||
| 500-5,000 | 415 | 10,000 | 15,000 | ±5% | 3 A @ 125 V AC 2 A @ 30 V DC | -40° to 212° | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Oil, Water | IP67; NEMA 6 | 00000000 | 0000000 |
7/16"-20 UN/UNF (SAE Straight) Male Pipe Connection | |||||||||||
Internal Setpoint Adjustment | |||||||||||
| 100-1,000 | 90 | 5,000 | 8,000 | ±5% | 5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC | -40° to 212° | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Oil, Water | IP67; NEMA 6 | 00000000 | 000000 |
| 200-2,000 | 165 | 5,000 | 8,000 | ±5% | 5 A @ 125 V AC 5 A @ 250 V AC 3 A @ 28 V DC | -40° to 212° | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Oil, Water | IP67; NEMA 6 | 00000000 | 000000 |
Hazardous Location Pressure Switches
Built with an explosion-proof enclosure to meet NEMA 7 and 9 standards for hazardous locations, these switches were tested and verified by UL and CSA for use where explosive liquids, dust, and gas are present. When they reach the set pressure, they power equipment, signal controls, or trigger alarms. They’re 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). In addition to being UL listed and CSA certified, these switches are CE marked, so they also meet European safety standards.
All switches are IP and NEMA rated for use outdoors and protection from some corrosion, dust, and spraying water.
IP67 and NEMA 4X rated switches seal out water from temporary submersion and have increased protection against corrosion, similar to 304 stainless steel.
| Setpoint, psi | Approximate Difference Between Setpoint and Reset Point, psi | Max. Continuous Pressure, psi | Accuracy | Max. Switching Current | Connection Material | For Use With | Environmental Rating | Each | ||
Wire Leads | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1/4 NPT Male Pipe Connection | ||||||||||
| A | 8-60 | 5 | 60 | ±5% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 0000000 |
| A | 10-100 | 9 | 100 | ±5% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 000000 |
| A | 20-200 | 16 | 200 | ±2% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 000000 |
| A | 50-500 | 60 | 500 | ±2% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 000000 |
| A | 100-1,000 | 87 | 1,000 | ±2% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 000000 |
| A | 200-2,000 | 165 | 2,000 | ±2% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9 | 00000000 | 000000 |
1/2 NPT Female Pipe Connection | ||||||||||
| B | 6-30 | 2 | 30 | ±1% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9 | 00000000 | 000000 |
| B | 12-60 | 2 | 60 | ±1% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9 | 00000000 | 000000 |
| B | 20-100 | 3.5 | 100 | ±1% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9 | 00000000 | 000000 |
| B | 40-200 | 6.5 | 200 | ±1% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP66 NEMA 4 NEMA 7 NEMA 9 | 00000000 | 000000 |
| B | 80-400 | 11 | 400 | ±1% | 5 A @ 125 V AC 5 A @ 250 V AC | 316 Stainless Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water | NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9 | 00000000 | 000000 |