Article Number: 161772

Smarty II NO

Temperature Controller normaly open

Tmax 250°C / Imax 16A / short reaction time / orientation independent mounting / temperature resistant ceramic housing / standard terminals

Properly installed, the temperature controller type 161 772 may be used wherever a fixed temperature needs to be controlled. This thermostat is designed to obtain a differential of approx. 10 - 25 K. It can be supplied with contacts ”normally closed“ (161 771) and "normally open" (161 772).

A stamped bimetal disc is used as temperature sensing element. The disc is placed in direct contact with the mounting plate therefore reacting quickly to temperature change. Upon reaching the preset temperature the bimetal disc provokes the opening (or the closing) of the electrical circuits. After the cooling phase, the disc snaps back to its original position thereby closing (or opening) the circuit again.

Advantages Technical data Applications Downloads Callback
Smarty II NO

The advantages of Smarty II NO

  • easy mounting

    quick + safe + economically

  • orientation independence

    Uneingeschränkte Performance + Reaktionszeit in allen Einbaulagen

  • short response time

    ideally suited for powerful and low-mass heating elements

  • stable switching temperature

    under different current- and temperature- loads

  • high current carrying capacity

    high contact pressure + low contact resistance + reduced heat development

  • switches even small currents safely

    version for control circuits

  • high voltage strength

    even after many switching processes

  • robust ceramic housing

    compact design + ceramic housing with separate switching chamber

  • The choice of leading OEM manufacturers

    Proven + reliable + high-performing

Details

Technical Data

fixed Temperature Controller normaly open

                      Switching cycles            Tmax
Type             Voltage       Current              VDE       cURus  
                   V Ni           A                   °C
161772            

001 - 0XY

           AC                 240            3             50.000           ---               200

301 - 3XY

           AC                 240          16             10.000        10.000               250
          AC                 400            7             10.000            ---               250
   

901 - 9XY

           AC                 240            1             50.000        50.000               250
          AC                 400            1             10.000        10.000               250
          DC                   48            1          100.000     100.000               250

 

Generel product features:

Switching temperature: 60°C - Tmax
Switching tolerance:

± 5 K            60 - 180°C

± 7,5 K      180 - 250°C
Differential: 10 - 25 K     (standard) modification on request
Rate of temperature rise:                > 1 K/min
Design: according DIN EN60730 protection class I
Proof tracking index PTI: > 600 V PTFE

 

Applications

Properly installed, the temperature controller type 161 771 may be used wherever a fixed temperature needs to be controlled. This thermostat is designed to obtain a differential of approx. 10 - 25 K. It can be supplied with contacts ”normally closed“ (161 771) and "normally open" (161 772).

Structure and mode of operation

A stamped bimetal disc is used as temperature sensing element. The disc is placed in direct contact with the mounting plate therefore reacting quickly to temperature change. Upon reaching the preset temperature the bimetal disc provokes the opening (or the closing) of the electrical circuits. After the cooling phase, the disc snaps back to its original position thereby closing (or opening) the circuit again.

Advantages

  • easy mounting
  • for switching temperatures up to 250°C max.
  • high current carrying capacity
  • high contact pressure, low contact resistance
  • rapid heat transfer in all mounting positions
  • fast response time, suitable for high-performance and low-mass heating elements
  • robust ceramic-housing with separated switching chamber
  • stable switching temperature also under different current loads
  • high electric strength between the contacts - even after many switching cycles
  • high insolation resistance to base plate

Approbation

refer to approval list which is available on request

Applications

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    Iron, steam station, steam straightener, steam cleaner

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    Heat pump, night storage heater, oil radiator, fan heater, frost monitor

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Downloads

List of all available downloads.

Download file Version Extension Size
Data sheet_161771
 pdf 1 MB Download

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