Description
Indfos PSM is a robust single-setpoint pressure switch used widely in pump protection, air compressor cut-out control, RO booster systems, and hydraulic automation panels. Built on diaphragm sensing, it provides reliable ON/OFF switching without a PLC, making it ideal for low-cost utility rooms & pump houses needing direct relay control.
Indfos PSM — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Measuring Range | 0.2 … 21 bar (variants available) |
| Switch Type | Single SPDT micro-switch (ON/OFF) |
| Sensing Element | Diaphragm-based actuation |
| Setpoint Adjustment | Manual screw (field adjustable) |
| Hysteresis | Fixed (non-adjustable) |
| Media Compatibility | Water, compressed air, neutral fluids |
| Process Connection | ¼” BSP (standard), brass body |
| Maximum Working Pressure | Up to 30 bar |
| Switch Accuracy | ±2% FS |
| Operating Temperature | −10 °C … +80 °C |
| Electrical Load | 250 VAC, 5–8 A (contactor duty) |
| Ingress Protection | IP65 |
| Mounting | Direct panel / pipe mount |
| Certifications | CE |





Reviews
There are no reviews yet.