EX-VCM4156
Alerton Vacuum switches (Ex) liquid, gas (Ex-VCM)
Vacuum switches for Ex-applications. Degree of Ex-protection: CE 0035 Ex II 2G Ex db eb IIC T6 and CE 0035 Ex II 2D Ex tb IIIC IP65 T85oC.
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.: -15...60C
Media temp. limit: temperatures up to 80 oC are allowable for short periods. 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: -15...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: ATEX-approval No. PTB 02 ATEX 1121
Pressure adjustment range: -15...6mbar
Switching differential: 2mbar
Max. pressure: 1bar
Sensing element material: Perbunan + 1.4301
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