EX-VNM301
Fema Vacuum switches (Ex-d) liquid, gas (Ex-VCM)
Vacuum switches for Ex-applications. Degree of Ex-protection: Ex II 2G Ex d e IIC T6 Gb and Ex II 1/2D Ex ta/tb IIIC T80 oC Da/Db
For monitoring vacuum of non-aggressive liquids and gaseous media.
Kind of pressure: vacuum, relative
Pressure connection: internal thread G1/4, external thread G1/2
Electrical connection: terminal connection M16x1,5
Protection class: IP65
Housing material: rugged housing of seawater resistant aluminium die casting GD Al Si 12.
Media temp.: -20...60C
Media temp. limit: Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters)
Ambient temperature: -20...60C
Ambient temp. limit: at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device
Switch function/capacity: SPDT Microswitch 250 Vac; capacity 2 A inductive, 3 A resistive
Certificates: SIL2 according IEC 61508-2
IBExU12ATEX1040 according to ATEX 2014/34/EU
IECEx IBE 14.0077
Pressure adjustment range: -250...100mbar
Switching differential: 45mbar
Max. pressure: 3bar
Sensing element material: 1.4104 + 1.4571
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