Model TFS135

Bimetal temperature switch

For switching voltages up to 250 V

Selected documents
Sales contact

WIKA Danmark A/S

Tel.:
+45 4581 9600
info@wika.as

Applications

  • Machine building
  • Compressors
  • Pumps
  • Cooling and heating circuits

Special features

  • Fixed switching temperature
  • Current-independent switching
  • Automatic reset
  • No additional voltage supply
  • Switching voltages up to AC 250 V / 2.5 A

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.

Circular connector M12 x 1

Circular connector M12 x 1

  • Circular connector M12 x 1Rectangular connector per DIN EN 175301-803Circular connector M12 x 1 with neck tube
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