Wika Bimetal Temperature Switch, TFS135

Part Number : TFS135

Brand :
WIKA

Temperature switches are generally used in industry for limiting temperature. They monitor the temperature of machinery and equipment and, for example, switch off machinery if it overheats or switch on a fan to cool the equipment.

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Description

Temperature switches are generally used in industry for limiting temperature. They monitor the temperature of machinery and equipment and, for example, switch off machinery if it overheats or switch on a fan to cool the equipment. Function Bimetals form the basis of the WIKA TFS135 temperature switches. Temperature sensing is carried out by a bimetal disc, which snaps over when the Nominal Switching Temperature (NST) is reached. After cooling back down to the Reset Switching Temperature (RST), the switch returns to its original state. The reset switching temperature is typically 15 ... 30 K below the switching temperature. Contact version The model TFS135 bimetal temperature switch is built with a Normally Closed contact. A Normally Closed contact (NC = closed in the normal state) opens a circuit and shuts down the machinery. After cooling down below the reset switching temperature, the contact returns to the original state, so that the monitored equipment can again work normally. For extended temperature control the TFS135 is available with a second normally closed contact or with an additional Pt1000/Pt100 measuring element.

Applications

Machine building Compressors Pumps Cooling and heating circuits

Special features

Fixed switching temperature Automatic reset No additional voltage supply Switching voltages up to AC 250 V / 2.5 A 2 switching contacts or Pt1000/Pt100 (option)

Downloads

TFS135 Data sheet TV 35.02.pdf

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TFS135 Operating Instruction.pdf

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