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This pressure switch trips across a 15 to 300 psi (1.03 to 20.68 bar) set range on a 15 A SPDT contact with a 3 to 18 psi (0.21 to 1.24 bar) deadband. It connects through a 1/2" NPT Female port in a sealed industrial body. It suits hydraulic and pneumatic system protection and industrial process pressure monitoring and control.
This pressure switch trips across a 15 to 300 psi (1.03 to 20.68 bar) set range on a 15 A SPDT contact with a 3 to 18 psi (0.21 to 1.24 bar) deadband. It connects through a 1/2" NPT Female port in a sealed industrial body. It suits hydraulic and pneumatic system protection and industrial process pressure monitoring and control.
OMEGA's affordable, general purpose pressure switches offer distinct advantages over most similar-style switches, including DPDT or adjustable deadband switches, as well as a wide selection of adjustable ranges from 0.5 inH2O to 3000 psi (1.24 mbar to 207 bar).
Features
Applications
| Series | PSW-100 Series |
| Type | pressure switch |
| Pressure type | Gauge |
| Switch | (1) 15 A SPDT |
| Set point range | 15 to 300 psi (1.03 to 20.68 bar) |
| Deadband | 3 to 18 psi (0.21 to 1.24 bar) |
| Adjustability | Adjustable |
| Pressure connection | 1/2" (12.7 mm) NPT Female |
| Approval | UL listed |
| Enclosure | Die-cast aluminum (maximum 0.6% copper); epoxy-coated blue enclosure, gasketed, complies with NEMA 4X (IP66) |
| Electrical Connection | 1/2" (12.7 mm) NPT and two 7/8" (22.2 mm) diameter knockouts |
| Storage Temperature | -67 to 158°F (-55 to 70°C) |
| Process Temperature, Stainless Steel | -67 to 401°F (-55 to 205°C) |
| Process Temperature, Phosphor Bronze | -40 to 302°F (-40 to 150°C) |
| Process Temperature, Buna-N | -13 to 203°F (-25 to 95°C) |
| Ambient Temperature | -40 to 158°F (-40 to 70°C), except models PSW-107 to PSW-117 and PSW-134 to PSW-139: -4 to 158°F (-20 to 70°C); setpoint typically shifts less than 1% of range for a 86°F (30°C) ambient temperature change |
| Shock | Setpoint repeats after 15 g, 10 ms duration |
| Vibration | Setpoint repeats after 2.5 g, 5 to 500 Hz |
| Setpoint Repeatability | All models ±1% of adjustable range, except models PSW-118 to PSW-125 and PSW-132 to PSW-133, which are ±1.5% |
| Switch Output | One SPDT or DPDT switch can be wired "normally open" or "normally closed" |
| Electrical Rating | Standard 15 A 125/250/480 V AC resistive; External Manual Reset: 15 A 125/250 V AC resistive |
| Adjustable Range | Ranges from 0.5 inH2O (1.25 mbar) to 3000 psi (206.84 bar) (vacuum to 3000 psi (206.84 bar)) |
| Wetted / Diaphragm Materials | Varies by model per To Order table: Buna-N diaphragm and O-ring; 316 SS diaphragm; phosphor bronze bellows; 316 SS bellows; 303 SS piston with Buna-N O-ring |
| Switch Type | 15 A SPDT or 10 A DPDT (varies by model per To Order table) |
| Proof Pressure | Varies by model per To Order table: 0 to 10,000 psi (0 to 689.48 bar) (e.g. 600, 2500, 100, 500, 250, 575, 10000 psi (689.48 bar)) |
| Adjustment | Adjustment Lock; safe, easy wiring access |
| Dimensions | 7.5 x 4 x 2.3" (191 x 101 x 60 mm) |
| Weight | Approximately 2 lbs (0.9 kg) |
| Series | PSW-100 Series |
| Type | pressure switch |
| Pressure type | Gauge |
| Switch | (1) 15 A SPDT |
| Set point range | 15 to 300 psi (1.03 to 20.68 bar) |
| Deadband | 3 to 18 psi (0.21 to 1.24 bar) |
| Adjustability | Adjustable |
| Pressure connection | 1/2" (12.7 mm) NPT Female |
| Approval | UL listed |
| Enclosure | Die-cast aluminum (maximum 0.6% copper); epoxy-coated blue enclosure, gasketed, complies with NEMA 4X (IP66) |
| Electrical Connection | 1/2" (12.7 mm) NPT and two 7/8" (22.2 mm) diameter knockouts |
| Storage Temperature | -67 to 158°F (-55 to 70°C) |
| Process Temperature, Stainless Steel | -67 to 401°F (-55 to 205°C) |
| Process Temperature, Phosphor Bronze | -40 to 302°F (-40 to 150°C) |
| Process Temperature, Buna-N | -13 to 203°F (-25 to 95°C) |
| Ambient Temperature | -40 to 158°F (-40 to 70°C), except models PSW-107 to PSW-117 and PSW-134 to PSW-139: -4 to 158°F (-20 to 70°C); setpoint typically shifts less than 1% of range for a 86°F (30°C) ambient temperature change |
| Shock | Setpoint repeats after 15 g, 10 ms duration |
| Vibration | Setpoint repeats after 2.5 g, 5 to 500 Hz |
| Setpoint Repeatability | All models ±1% of adjustable range, except models PSW-118 to PSW-125 and PSW-132 to PSW-133, which are ±1.5% |
| Switch Output | One SPDT or DPDT switch can be wired "normally open" or "normally closed" |
| Electrical Rating | Standard 15 A 125/250/480 V AC resistive; External Manual Reset: 15 A 125/250 V AC resistive |
| Adjustable Range | Ranges from 0.5 inH2O (1.25 mbar) to 3000 psi (206.84 bar) (vacuum to 3000 psi (206.84 bar)) |
| Wetted / Diaphragm Materials | Varies by model per To Order table: Buna-N diaphragm and O-ring; 316 SS diaphragm; phosphor bronze bellows; 316 SS bellows; 303 SS piston with Buna-N O-ring |
| Switch Type | 15 A SPDT or 10 A DPDT (varies by model per To Order table) |
| Proof Pressure | Varies by model per To Order table: 0 to 10,000 psi (0 to 689.48 bar) (e.g. 600, 2500, 100, 500, 250, 575, 10000 psi (689.48 bar)) |
| Adjustment | Adjustment Lock; safe, easy wiring access |
| Dimensions | 7.5 x 4 x 2.3" (191 x 101 x 60 mm) |
| Weight | Approximately 2 lbs (0.9 kg) |
