Article Number: 161772

Smarty II NO

Thermostat Normally open

Tmax 250 °C / Imax 16 A / 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 cyclesTmax
Type Voltage      CurrentVDE      cURus 
  V NiA  °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:> 250 V
> 600 V PTFE cover on request

 

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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    Dishwasher, oven, professional cooking systems, washer

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    Clothing preparation / steam cleaning

    Iron, steam station, steam straightener, steam cleaner

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    Building heating / space heating

    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_161772
 pdf 1 MB Download

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