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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 Plug DIN EN 175301
Protection class IP54
Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12.
Media temp. -25 ... 70 oC
Media temp. limit temperatures up to 85 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 -25 ... 70 oC
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 5 A inductive, 8 A resistive
Optional functions add the type numbers below to the listed type numbers for extra functionality as described
-301: terminal connection housing, IP65
-307: two microswitches, switching in parallel or in succession, fixed switching interval, terminal connection case (with the exception of VCM4156), IP65
-217: two microswitches, 1 plug, switching in succession, adjustable switching interval (with the exception of VCM4156)
-213: gold-plated contacts, switching capacity: max. 24 Vdc, 100 mA, min. 5 Vdc, 2 mA. And others not available with adjustable switching difference.
-351: protection class IP65 and switching housing with surface protection (chemical version)
-513: gold-plated contacts, switching differential permanent, IP65, switching capacity: max. 24 Vdc, 100 mA, min. 5 Vdc, 2 mA; suitable isolating switching amplifier necessary, degree of protection Ex-i
Certificates SIL2 according IEC 61508-2
applcertmarksilge51
Fixed pressure hysteresis
Pressure adjustment range Adjustable switching differential Switching differential Max. pressure Sensing element material Type
bar bar mbar bar    
-0.015 ... 0.006 2 1 Perbunan + 1.4301 VCM4156  PDF
-0.25 ... 0.1 25 1.5 Copper + Brass VCM301  PDF
-0.25 ... 0.1 45 3 1.4104 + 1.4571 VNM301  PDF
-1 ... 0.1 45 3 Copper + Brass VCM101  PDF
-0.9 ... 0.5 50 3 Copper + Brass VCM095  PDF
-1 ... 0.1 50 6 1.4104 + 1.4571 VNM111  PDF
Adjustable pressure hysteresis
Pressure adjustment range Adjustable switching differential Switching differential Max. pressure Sensing element material Type
bar bar mbar bar    
-0.25 ... 0.1 0.03 ... 0.2 1.5 Copper + Brass VCMV301  PDF
-0.25 ... 0.1 0.07 ... 0.5 3 1.4104 + 1.4571 VNMV301  PDF
-1 ... 0.1 0.08 ... 0.35 3 Copper + Brass VCMV101  PDF
-0.9 ... 0.5 0.09 ... 0.4 3 Copper + Brass VCMV095  PDF
-1 ... 0.1 0.09 ... 0.65 6 1.4104 + 1.4571 VNMV111  PDF
Description Additional Product Type
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  PDF