Technical data

 Switching function

 Contact 

 → closes at increasing flow 

 → opens at decreasing flow 

 Reversing possible

 Pressure rating

 PN 25

 Temperature ranges

 Medium

 -25...110 °C

 Ambient

 -25...80 °C

 Electrical data

 Electrical connection

 → VHS

 → VH3

 Plug connector DIN EN 175301- 

 803-A incl. cable socket 

 1.5 m PVC jacket cable

 Max. switching current

 1 A

 Max. switching voltage

 230 VAC, 48 VDC

 Max. rating

 26 VA, 20 W

 Degree of protection EN 60529

 IP65

 Protection class EN 60730-1

 Class II 

 Approvals

 WRAS

 TUV

 Options

 For type

 See order code

 VHS

 → Plug connector DIN EN 175301-803- A

      incl.cable socket with two LED

      for switching voltages 24 V...230 V 

      AC/DC ±20 %, ambient temperature -20...70 °C

 → or 4-pin-sensor plug M12 x 1

 VHS / VH3

 → For use in potentially explosive 

      atmospheres (version VH...X)

      max. medium temperature 100 °C

 Type

 Process connection

 Insert in 

 Nominal diameter

 Setpoint ranges [m³/h]*

 Max. flow rate [m³/h]

 Increasing flow ON

 Decreasing flow OFF

 VH305 / VHS05

 Threaded adapter G½**

 DN 50

 1.9...2.7

 1.8...2.6

 30

 DN 80

 5.0...8.0

 4.9...7.9

 80

 DN 100

 8.3...12.5

 8.2...12.4

 150

 DN 150

 17.5...25.0

 17.4...24.9

 200

 VHS01

 Soldering adapter / 

 welding adapter

 DN 50

 3.8...4.9

 3.7...4.8

 30

 DN 80

 9.0...14.3

 8.9...14.2

 100

 DN 100

 13.0...18.8

 12.7...18.4

 150

 DN 150

 33.0...46.0

 32.9...45.9

 200