Article Number: 161791

Discomelt II

Thermostat / Thermal Link Combination

Tmax 250°C / Imax 15A / short reaction time / easy mounting / orientation independent mounting / temperature resistant ceramic housing / standard terminals

Properly installed, the thermostat / thermal link combination type 161 791 may be used for applications where a fixed temperature needs to be monitored or controlled and a maximum temperature must not be exceeded, for example in household appliances such as dishwashers and washing machines, small electrical appliances such as coffeemakers, steam generators etc. or in electrically monitored water heaters.

A vaulted bimetal disc is used as a temperature sensing element in the thermostat. The disc is placed in direct contact with the 
mounting plate of the combination therefore reacting quickly to changes in temperature. Upon reaching the preset temperature the bimetal disc operates and opens the electrical circuit. Upon cooling, the disc snaps back into its original position thereby closing the circuit again. The switching temperature is freely selectable within a wide range. The thermal link, approved in accordance with DIN VDE 0821 / EN 60691, has a solder insert in the mounting plate which is in direct thermal contact with the surface that is to be monitored. When the preset temperature is reached, the solder melts causing a pin to move which results in the electrical contacts opening. Resetting is not possible. 5 different preset solder temperatures are available. The two components thermostat and thermal link have a common mounting plate, which is responsible for thermal conduction. This ensures that the thermal information for thermostat and thermal link always comes from exactly the same source.

Advantages Technical data Applications Callback
Discomelt II

The advantages of Discomelt II

  • easy mounting

    quick + safe + economically

  • two components on one base plate

    space saving + easy mounting + homogeneous heat transfer

  • large variance in fuse temperatures

    discreet in 5 levels up to 318°C

  • high continuous operating and limit temperatures

    more security for your applications

  • proven product quality

    consistent performance characteristics through fully automatic production

  • ideally suited for powerful + low-mass heating elements

    ideally suited for powerful + low-mass heating elements

  • high contact opening forces

    contacts remain secure and stable in the desired position, even under conditions of vibration and shock

  • the choice of leading OEM manufacturers

    Proven + reliable + high-performing

Details

Technical Data

fixed Thermostat / Thermal Link Combination

                      Switching cycles          Tmax
Type               Voltage      Current              VDE       cURus  
                   V Ni           A                 °C
161791            

001 - 0XY

           AC                 240          10          100.000      100.000             200
          AC                 240          15            10.000        30.000             200
          AC                 120          13,5                 ---      100.000             200
         
101 - 1XY           AC                 240          15           100.000      100.000             200
             

301 - 3XY

           AC                 240          10             40.000      100.000             250
          AC                 240          16             10.000        30.000             250
          AC                 240          23               1.000            ---             250
          AC                 240          26                  300            ---             200
          AC                 400            7             10.000            ---             250
          AC                 400          16                  300            ---             250
             

401 - 4XY

           AC                 240          15             50.000       100.000             250
          AC                 240          15                  300            ---             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

 

Generell product featrures:

Switching temperture: 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 > 250V

 


 Technical Data TS Link

The "Minimelt II Plus" thermal fuse has been tested in accordance with DIN EN60691 and is approved for the following requirements:

Ambient conditions:               Temperature fuse for use under normal atmospheric conditions.
Circuit conditions: Thermal fuse for use in ohmic circuits
Comparative tracking index:       CTI ≥ 250  
     
Characteristic values                    VDE *) cURus
Nominal current                       Ir    15 A
Switch-off current                      Ib    22,5 A
Short-term overload current                       Ip   225 A
Nominal voltage                      Ur   240V
    *) cURus = UL / CSA
Characteristic temperatures
Tf ... Nominal temperature
Th ... Continuous operating temperature in accordance with DIN EN60691 (measured at the base plate near the link insert)
Tm ... Max. temperature limit
         Tf (°C)   UL VDE Tm (°C)
  Th (°C) Th (°C)  
         206°C 170°C 165°C 500°C
         229°C 205°C 187°C 500°C
         250°C 215°C 215°C 500°C
         260°C 230°C 215°C 500°C
         298°C 260°C 255°C 500°C
         318°C 280°C 270°C 500°C
Tolerance for Tf is according to VDE 0821 / DIN EN60691 / UL60691 -10K

 

It is important to pay attention to an aligned design of both components.

Applications

Properly installed, the thermostat / thermal link combination type 161 791 may be used for applications where a fixed temperature needs to be monitored or controlled and a maximum temperature must not be exceeded, for example in household appliances such as dishwashers and washing machines, small electrical appliances such as coffeemakers, steam generators etc. or in electrically monitored water heaters.

Structure and mode of operation

A vaulted bimetal disc is used as a temperature sensing element in the thermostat. The disc is placed in direct contact with the 
mounting plate of the combination therefore reacting quickly to changes in temperature. Upon reaching the preset temperature the bimetal disc operates and opens the electrical circuit. Upon cooling, the disc snaps back into its original position thereby closing the circuit again. The switching temperature is freely selectable within a wide range. The thermal link, approved in accordance with DIN VDE 0821 / EN 60691, has a solder insert in the mounting plate which is in direct thermal contact with the surface that is to be monitored. When the preset temperature is reached, the solder melts causing a pin to move which results in the electrical contacts opening. Resetting is not possible. 5 different preset solder temperatures are available. The two components thermostat and thermal link have a common mounting plate, which is responsible for thermal conduction. This ensures that the thermal information for thermostat and thermal link always comes from exactly the same source.

Advantages

  • easy mounting
  • both components mounted onto one base plate with homogenous heat transfer
  • very fast response time thanks to integrated solder strut in the base plate
  • protected contact system, no cover cap necessary
  • large variance in different, discreet fuse temperatures from Tf 206°C up to 318°C
  • high continuous operating temperature Th
  • high contact opening force
  • high dielectric strength and long lifespan
  • consistent performance characteristics and product quality through fully automated production

Approbation

refer to approvals list which is available on request

Applications

  • Major Appliances © AdobeStock

    Major Appliances

    Dishwasher, oven, professional cooking systems, washer

    Read more
  • Small household appliances © AdobeStock

    Small household appliances

    Multifunction stove, deep fryer, waffle maker, steamer, rice stove

    Read more
  • Beverage processing © AdobeStock

    Beverage processing

    Fully automatic coffee machines, milk frothers, tea machines, samovars

    Read more
  • Clothing preparation / steam cleaning © iStock

    Clothing preparation / steam cleaning

    Iron, steam station, steam straightener, steam cleaner

    Read more

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