This datasheet details the WIKA PCA compact pressure switch, covering specifications, features, applications, and certifications for process industry use.
The WIKA PCA is a compact pressure switch designed for process monitoring and control in industries with high safety requirements, such as chemical, petrochemical, and oil & gas sectors. It features a robust aluminum or stainless steel 316L sealed housing with an IP66 protection rating and operates without an external power source when switching electrical loads.
The device offers a wide range of settings from 20...120 kPa up to 20...100 MPa, including vacuum ranges. It is available with single or double pole double throw (DPDT) contacts and can be configured to meet SIL 2 or SIL 3 functional safety standards. The switch includes a diaphragm element with a return spring for durable operation and is suitable for corrosive, high-viscosity, or contaminated media. This manual is written in Chinese.
| Protection Rating | IP66, NEMA 4X |
|---|---|
| Switching Capacity | AC 250 V, 15 A |
| Setting Range | 20...120 kPa to 20...100 MPa |
| Setting Point Reproducibility | ≤1% of range |
| Housing Material | Aluminum or Stainless Steel 316L |
| Safety Standards | SIL 2 or SIL 3 |
It is suitable for the chemical, petrochemical, oil & gas, power plants, water/wastewater treatment, and mining industries.
No, it can switch electrical loads without requiring an external power source.
The housing is made of aluminum or stainless steel 316L.