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| The Brain that provides round the clock protection for your electric motor | Â | |||||||||
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The Thermistor Protection Relay TSDIN01 is used for tripping motors, transformers etc. whenever the excessive temperature developes in the winding.The Relay controlled by thermistors guarantee first of all the thermal overload protection of electrical machines. The switching point of the complete protection is specified by the nominal response temperature of the used thermistors. Appliances with two input circuits offer the possibility of warning and shut-off.
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The thermistor Protection Relay TSDIN01 can be combined with all thermistors with a characteristic curve according to DIN 44081 / 082
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After mounting the thermistor detectors into e.g. the winding tips of the protected motors, the release is connected. The number of the connectable PTC according to DIN is only limited by its total resistance R25. If the temperature in one of the controlled parts or areas increases over the nominal response temperature of the respective PTC sensor e.g. by:
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So this becomes high resistive and the thermistor release shuts off the motor protection switch over a relay. Dependent on the type of release a switch-back occurs after cooling down of about 2 .. 5 K. For cases of application at which an automatic re-start is not suggestive or not acceptable, thermistor release device with power-on blocking are available. For this design has to be made a manual unlocking to re-start the machine after a thermal shut-off.
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