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This pressure switch trips across a 0.8 to 30 psi (0.06 to 2.07 bar) set range on a 1 A SPST contact with a 0.8 to 1.3 psig (0.06 to 0.09 bar) deadband. It connects through a 1/8" NPT Male port in a sealed industrial body. It suits miniature oem pressure and vacuum monitoring and compressor and pump control.
This pressure switch trips across a 0.8 to 30 psi (0.06 to 2.07 bar) set range on a 1 A SPST contact with a 0.8 to 1.3 psig (0.06 to 0.09 bar) deadband. It connects through a 1/8" NPT Male port in a sealed industrial body. It suits miniature oem pressure and vacuum monitoring and compressor and pump control.
The PSW-500 Series comprises miniature pressure and vacuum switches with an external pressure scale and pointer for easy setpoint adjustments. They handle vacuum to 800 psi (55 bar), with high-proof-pressure 5 A models and gold-plated 1 A models, and compound and O-ring wetted parts.
Features
Applications
| Series | PSW-500 Series |
| Type | pressure switch |
| Pressure type | Gauge |
| Switch | (1) 1 A SPST |
| Set point range | 0.8 to 30 psi (0.06 to 2.07 bar) |
| Deadband | 0.8 to 1.3 psig (0.06 to 0.09 bar) |
| Adjustability | Fixed |
| Pressure connection | 1/8" (3.2 mm) NPT Male |
| Approvals | UL (1 A switches PSW-520 and PSW-540 Series only) |
| Process Temperature | -67 to 221°F (-55 to 105°C) [2% setpoint shift can occur below -13°F (-25°C) or above 122°F (50°C)] |
| Cycling | Not to exceed 20 cycles/minute |
| Warranty | 3 year/1 million cycles |
| Sensor | Piston (PSW-520 and PSW-540: diaphragm) |
| Proof Pressure | 150% maximum system pressure (PSW-530 and PSW-550: proof pressure is the maximum system pressure) |
| Wetted Parts | PSW-520 and 540 series: 17-7 PH SS, 303 SS and loctite #271; PSW-530 and 550 series: 303 SS, 316 SS, Buna-N O-ring, loctite #271; PSW-560 and 570 series: 17-7 PH SS, 303 SS, Buna-N O-ring and loctite #271 |
| Enclosure, Body | 303 SS |
| Enclosure, Internal Switch Housing and Lock Ring | Zinc alloy, chromate finish |
| Enclosure, Cap | Black Valox® |
| Pressure Port | 1/8-27 NPT |
| Electrical Connection | 20 AWG, 3 polyvinyl-insulated, unjacketed, 12" (30.5 cm) pigtail leads |
| Switch Rating, 1 A SPDT | 115/28 V AC/DC maximum rating, 1/1 amps resistive, 1/0.5 amps inductive, Gold contacts |
| Switch Rating, 5 A SPDT | 250/28 V AC/DC maximum rating, 5/5 amps resistive, 5/3 amps inductive, Silver contacts |
| Pressure Range | Vacuum to 800 psi (55.16 bar) |
| Process Temp | -67 to 221°F (-55 to 105°C) [2% setpoint shift can occur below -13°F (-25°C) or above 122°F (50°C)] |
| Contact Note | Use gold contacts for dry and TTL circuitry (e.g., 5 V DC @ 50 mA or less) |
| Wiring Code (Pressure) | Red = N/C, White = N/O, Black = Common |
| Wiring Code (Vacuum) | Red = N/O, White = N/C, Black = Common |
| Dimensions, PSW-520 and PSW-540 | 2.56 x 1.13" (65 x 28.6 mm) length x diameter |
| Dimensions, PSW-560 and PSW-570 | 2.8 x 1.09" (71 x 27.8 mm) length x diameter |
| Weight | 4 oz (113 g); PSW-520 and PSW-540 Series: 3 oz (85 g) |
| Series | PSW-500 Series |
| Type | pressure switch |
| Pressure type | Gauge |
| Switch | (1) 1 A SPST |
| Set point range | 0.8 to 30 psi (0.06 to 2.07 bar) |
| Deadband | 0.8 to 1.3 psig (0.06 to 0.09 bar) |
| Adjustability | Fixed |
| Pressure connection | 1/8" (3.2 mm) NPT Male |
| Approvals | UL (1 A switches PSW-520 and PSW-540 Series only) |
| Process Temperature | -67 to 221°F (-55 to 105°C) [2% setpoint shift can occur below -13°F (-25°C) or above 122°F (50°C)] |
| Cycling | Not to exceed 20 cycles/minute |
| Warranty | 3 year/1 million cycles |
| Sensor | Piston (PSW-520 and PSW-540: diaphragm) |
| Proof Pressure | 150% maximum system pressure (PSW-530 and PSW-550: proof pressure is the maximum system pressure) |
| Wetted Parts | PSW-520 and 540 series: 17-7 PH SS, 303 SS and loctite #271; PSW-530 and 550 series: 303 SS, 316 SS, Buna-N O-ring, loctite #271; PSW-560 and 570 series: 17-7 PH SS, 303 SS, Buna-N O-ring and loctite #271 |
| Enclosure, Body | 303 SS |
| Enclosure, Internal Switch Housing and Lock Ring | Zinc alloy, chromate finish |
| Enclosure, Cap | Black Valox® |
| Pressure Port | 1/8-27 NPT |
| Electrical Connection | 20 AWG, 3 polyvinyl-insulated, unjacketed, 12" (30.5 cm) pigtail leads |
| Switch Rating, 1 A SPDT | 115/28 V AC/DC maximum rating, 1/1 amps resistive, 1/0.5 amps inductive, Gold contacts |
| Switch Rating, 5 A SPDT | 250/28 V AC/DC maximum rating, 5/5 amps resistive, 5/3 amps inductive, Silver contacts |
| Pressure Range | Vacuum to 800 psi (55.16 bar) |
| Process Temp | -67 to 221°F (-55 to 105°C) [2% setpoint shift can occur below -13°F (-25°C) or above 122°F (50°C)] |
| Contact Note | Use gold contacts for dry and TTL circuitry (e.g., 5 V DC @ 50 mA or less) |
| Wiring Code (Pressure) | Red = N/C, White = N/O, Black = Common |
| Wiring Code (Vacuum) | Red = N/O, White = N/C, Black = Common |
| Dimensions, PSW-520 and PSW-540 | 2.56 x 1.13" (65 x 28.6 mm) length x diameter |
| Dimensions, PSW-560 and PSW-570 | 2.8 x 1.09" (71 x 27.8 mm) length x diameter |
| Weight | 4 oz (113 g); PSW-520 and PSW-540 Series: 3 oz (85 g) |
