PSM-520 – Pressure switch
The WIKA PSM-520 is a heavy-duty, electromechanical on/off pressure switch commonly used for industrial control, monitoring, and alarm applications. Originally established under the Indfos brand name, this model senses changes in process pressure and converts them into mechanical actuation to trigger a reliable, integrated Single Pole Double Throw (SPDT) micro switch.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The WIKA PSM-520 is a heavy-duty, electromechanical on/off pressure switch designed for industrial process control and monitoring. Originally introduced under the trusted Indfos brand name, this instrument senses changes in process pressure and converts them into mechanical movement. This physical displacement actuates a highly reliable, built-in Single Pole Double Throw (SPDT) micro switch.
| Parameter | Specification / Feature Details |
|---|---|
| Product Model | WIKA PSM-520 (Formerly Indfos brand) |
| Switch Type | Electromechanical on/off pressure switch |
| Contact Assembly | 1x SPDT (Single Pole Double Throw) micro switch |
| Electrical Rating | AC 230 V, 50/60 Hz, 10 A maximum |
| Sensing Element | Durable phosphor bronze bellows |
| Pressure Ranges | Up to 7 bar (Model 70), 15 bar (Model 200), or 30 bar (Model 400) |
| Setting Adjustment | On-site adjustable set-point and differential via internal screws |
| Process Connection | G 1/4″ Female (Standard BSP thread) |
| Compatible Media | Air, water, oil, and other non-corrosive fluids |
| Medium Temperature | Max. 70 °C |
| Ingress Protection | IP30 / IP33 (Powder-coated steel cover, galvanised base) |
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