The Nason SM Series pressure switch is available in 9 & 16 PSI falling and is specifically designed for medium pressure applications. Made from a brass base with a non-adjustable snap action switch, this switch is rated at 5 amps and has one normally open circuit. The switch is epoxy sealed and ideal for exposed environments. Connection is via a 1/8” NPT mounting thread and the electrical connectors are made through two 8/32” screw connectors.
| OPERATING SPECIFICATIONS | |
| Set point range: | 2 - 120 PSI (.14 - 8.3 bar) | 
| Set point tolerance: | +/- 1 PSI or 5 PSI (.07 bar) | 
| Maximum operating pressure: | 250 PSI (17 bar) | 
| Proof pressure: | 750 PSI (51 bar) | 
| Differential: | 8 - 16% | 
| Current rating: | 5A @ 30 VDC (resistive), 5A @ 250 VAC | 
| Media connection: | 1/8" NPT male | 
| Circuit form: | SPST normally open | 
| Fixed set point: | 9 PSI / 16 PSI | 
| Set point: | Falling | 
| Diaphragm material: | Buna N | 
| Cycle life: | 1 million |