VSD200 is a differential vacuum switch that detects pressure difference referenced to atmosphere. Its all stainless steel design resists corrosion, and it serves atmospheric pressure detection and interlocks for pumps, valves and gas supplies.


| Differential Range (VSD200) | -100…+50 Torr/mbar |
| Setting Range | -99 … +46 Torr/mbar |
| Allowable Pressure (absolute) | 2 bar |
| Setting Accuracy | 0.5 % FS |
| Hysteresis | 2 % FS |
| Response Time | ≤45 ms |
| Relay | 30 V/1 A (dc), 125 V/0.3 A (ac) |
| Supply Voltage | 14 … 30 V (dc) |
| Operating Temperature | 0 … 70 °C |
| Weight | 140 g |
| Protection Rating | IP 40 |
| Materials Exposed to Vacuum | Stainless steel |