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FEMA Ex-DNS/Ex-VNS | ATEX Stainless Pressure and Vacuum Switches | 1.4571 sensor, ATEX + IECEx
Part Number : EX-DNS-EX-VNS-SERIES
FEMA Ex-DNS pressure switches and Ex-VNS vacuum switches pair a gasket-free, plasma-welded 1.4571 stainless steel sensor with ATEX (IBExU12ATEX1040) and IECEx (IBE 14.0077) explosion protection. They are intended for aggressive liquids and gases in chemical plants and process engineering at -20 to 60 °C ambient. The switching differential is not adjustable.
Key features
- All sensor parts in 1.4571 stainless steel, welded without filler metal
- Chromated, stove-enamelled GD AlSi12 housing; no surface change after a 20-day 3% saline test
- SPDT microswitch, 2 A inductive / 3 A resistive
- G1/4 internal / G1/2 external connection
- Calibrated for falling pressure; SIL 2 to IEC 61508-2
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