electronic limit switch / for valve actuators / safety / compact
3738-20 SAMSON



  • Applications:

    for valve actuators

  • Other characteristics:

    safety, compact, electronic, non-contact

  • Field:

    for automation applications, for on/off applications


Special features

Electronic limit switch
Automation of on/off applications
Compact die-cast aluminum housing
Attachment to linear actuators according to IEC 60534-6 or SAMSON integral attachment
Attachment to rotary actuators according to VDI/VDE 3845
Proven operating scheme: menu-driven, on-site operation using one rotary pushbutton, display easy to read in any mounting position
Trouble-free integration into existing systems: NAMUR contacts (DIN EN 60947-5-6), 24 V DC solenoid valve, intrinsically safe version
Contactless, wear-free travel sensor
Powered over a two-wire system solely by the NAMUR signal
Automatic initialization
Easy-to-read display with rotatable reading direction, LED for solenoid valve status
Communication interface for convenient configuration and documentation
Certified safety, use in safety-instrumented systems according to IEC 61508
Diagnostic functions: partial stroke test (PST), movement counter, operating hours counter, dead time and transit time measurement


TROVIS-VIEW Software (free of charge)


Version with solenoid valve (3/2- or 5/2-way)

Other SAMSON products

Valve accessories