1NT for defrost heaters Defrost heater - refrigerators use a heater for removing the frost from the evaporator for higher efficiency - the heater of around 200 W is operating approx. once a day Controls: - ntc sensors (not Sensata) + ½” bimetal thermostat Æ...
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1NT for defrost heaters Defrost heater - refrigerators use a heater for removing the frost from the evaporator for higher efficiency - the heater of around 200 W is operating approx. once a day Controls: - ntc sensors (not Sensata) + ½” bimetal thermostat Æ 1NT - ntc’s + 1NT for temperature sensing and control and 1NT for safety limiting function (overheating) - due to wet condition the 1NT is resin coated or bag sealed - Sensata only offers the base 1NT (not the resin coated etc) - for industrial applications Sensata offers 3NT (IP67) or sealed 20420 thermostats Typical 1NT configurations + specifications: - 1NT01L/1NT02L standard auto-reset configurations - regulating: open range 8 - 20 °C, close range 1 - 9 °C, with 11 °C differential - limiting / safety: open / close around 40 °C / 25 °C - terminals: weld or solder tabs - contact load: 230 Vac, 1 – 2 Amp, 50 kcy. 1 JK / March / 2012 Sensata Strictly Private – Proprietary Information
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