VCM Vacuum switch for liquid, gas


FEMA negative pressure switches detect the pressure difference relative to atmospheric pressure. All data relating to the switching pressure ranges and thus also the scale divisions on the switching devices are to be understood as the difference in pressure between the relevant atmospheric pressure and the set switching pressure. The “zero” reference point on the scale of the unit corresponds to the relevant atmospheric pressure.

Datasheet
User Manual
Add to your Quote List

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

 

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
-0.25 … 0.1 — 25 1.5 Copper + Brass VCM301
-0.25 … 0.1 — 45 3 1.4104 + 1.4571 VNM301
-1 … 0.1 — 45 3 Copper + Brass VCM101
-0.9 … 0.5 — 50 3 Copper + Brass VCM095
-1 … 0.1 — 50 6 1.4104 + 1.4571 VNM111
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
-0.25 … 0.1 0.07 … 0.5 — 3 1.4104 + 1.4571 VNMV301
-1 … 0.1 0.08 … 0.35 — 3 Copper + Brass VCMV101
-0.9 … 0.5 0.09 … 0.4 — 3 Copper + Brass VCMV095
-1 … 0.1 0.09 … 0.65 — 6 1.4104 + 1.4571 VNMV111
Description Additional Product Type
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  








				

											

										



	

				

			
			








		

					


	







	

				

			
			








		

					


	







	

				

			
			








		

					


	







	

				

			
			








		

					


	


				

							
					

	




		

					


	

	

				

			
			











  




	

		
VCM Vacuum switch for liquid, gas
	











	

				

			
			


		Technical advice: 03303 / 50 40 66
	






	

				

			
			


Technical advice for this product








 
    

    

    

    

    

    

    

    

    

    

    

    

    

    

    

    

    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.

    


    


    




    

    

    

    

    


		
    
					
    

	




    

		
    
					
    

	




    

		
    
					
    

	


    

    


	
    
				
    
			
			


    
	VCM Vacuum switch for liquid, gas
    

	
    

    

 

    


    


    


    
  
    


    
	
    
		
    VCM Vacuum switch for liquid, gas
    	
    

    

    

    

    
	
    FEMA negative pressure switches detect the pressure difference relative to atmospheric pressure. All data relating to the switching pressure ranges and thus also the scale divisions on the switching devices are to be understood as the difference in pressure between the relevant atmospheric pressure and the set switching pressure. The “zero” reference point on the scale of the unit corresponds to the relevant atmospheric pressure.
    

    


    

    

    

 Datasheet


    

    

 User Manual


    

    

    


    
		
    
		Add to your Quote List	
    
	
	
	

    

    

    

	
    
		
		
    
							
    
										


    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

    
    

    

     
    

    


    


    


    


    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

    

    
-0.25 … 0.1
—
25
1.5
Copper + Brass
VCM301

    

    
-0.25 … 0.1
—
45
3
1.4104 + 1.4571
VNM301

    

    
-1 … 0.1
—
45
3
Copper + Brass
VCM101

    

    
-0.9 … 0.5
—
50
3
Copper + Brass
VCM095

    

    
-1 … 0.1
—
50
6
1.4104 + 1.4571
VNM111

    
    

    

    


    


    


    


    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

    

    
-0.25 … 0.1
0.07 … 0.5
—
3
1.4104 + 1.4571
VNMV301

    

    
-1 … 0.1
0.08 … 0.35
—
3
Copper + Brass
VCMV101

    

    
-0.9 … 0.5
0.09 … 0.4
—
3
Copper + Brass
VCMV095

    

    
-1 … 0.1
0.09 … 0.65
—
6
1.4104 + 1.4571
VNMV111

    
    

    

    


    
Description
Additional Product Type

    

    
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters)
U430B  
    

    
    		

    
    

    
				
    
											
    
										
    


	
    
				
    
			
			





    


		
    
					
    

	


    

    


	
    
				
    
			
			





    


		
    
					
    

	


    

    


	
    
				
    
			
			





    


		
    
					
    

	


    

    


	
    
				
    
			
			





    


		
    
					
    

	


    				
    
							
					
    
	
    



		
    
					
    

	

	
    
				
    
			
			


    


	
    
				
    
			
			


		Technical advice: 03303 / 50 40 66
	



    


	
    
				
    
			
			


    Technical advice for this product
    



    

    

     
      

      

      

      

      

      

      

      

      

      

      

      

      

      

      

      

      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.

      


      


      




      

      

      

      

      


		
      
					
      

	




      

		
      
					
      

	




      

		
      
					
      

	


      
			
      
				
      
									
      
			
      

	
      

	

      

		
	
      



      




      



    
        
    	
      
		
      
			
      
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