Description
SUCO intrinsically safe pressure switches with plug connection are designed for pressure monitoring and control in hazardous areas where explosive gases, vapors, or dusts may be present. The 0390, 0391, and 0393 series provide pressure switching solutions for applications requiring ATEX and IECEx compliance, with galvanized steel housings, adjustable factory-set hysteresis.
The series includes diaphragm and piston pressure switches for use across gas, dust, and mining applications.
Series
0390 – Diaphragm pressure switch with plug connection.
Pmax in bar: 100 bar
Pmax in bar: 400 bar
0391 – Piston pressure switch with plug connection.
Pmax in bar: 700 bar
0393 – Piston pressure switch with plug connection.
Pmax in bar: 600 bar
Features
- Intrinsically safe design for hazardous areas
- Diaphragm and piston pressure switch options
- Available for gas, vapor, dust, and mining applications
- Galvanized steel housing
- Factory-adjustable hysteresis
- Gold-contact changeover switch
- Plug connection
- Mechanical life expectancy of 1,000,000 cycles
- ATEX and IECEx compliant
Applications
The SUCO ATEX pressure switches are designed for pressure monitoring in hazardous environments across a range of industrial applications.
Typical applications include:
- Chemical processing
- Oil and gas
- Mining
- Pharmaceutical manufacturing
- Petrochemical processing
- Equipment operating in explosive gas, vapor, or dust atmospheres
The pressure switches are suitable for applications requiring compliance with explosive-atmosphere regulations and are designed for use in hazardous areas including Zones 0, 1, 2, 20, 21, and 22, depending on the applicable ATEX marking.
ATEX Approvals
| Application | Zones | ATEX Classification |
|---|---|---|
| Gas & Vapors | 0, 1 & 2 | II 1G Ex ia IIC T6 Ga |
| Dusts | 20, 21 & 22 | II 1D Ex ia IIIC T135°C |
| Mining | — | I M1 Ex ia I Ma |
Technical Specifications
| Specification | Details |
|---|---|
| Protection Class | Ex i |
| Gas Zone | 0, 1, 2 |
| Dust Zone | 20, 21, 22 |
| Housing Material | Galvanized steel |
| Mechanical Life Expectancy | 1,000,000 cycles |
| Pressure Rise Rate | ≤ 1,000 bar/s |
| Seal Materials | NBR, EPDM, FKM (Diaphragm pressure switch) , FKM (Piston pressure switch), HNBR |
| Maximum Voltage | 24 V |
| Contact | Changeover, gold contacts |
| Hysteresis | Adjustable at the factory |
| Connection | Plug connection |
| Certifications | Compliant with the ATEX Directive 2014/34/EU and IECEx scheme |
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