Images are representations only.

Expansion Thermometer - STW15

Brand: WIKA Alexander Wiegand SE & Co. KG
The safety temperature controller model STW15 has been designed for the operating medium of air (flue gas).

It will open a control circuit when the temperature on the temperature sensor exceeds the non-adjustable set point.
Features
  • High switching reliability
  • Temperature indicator and safety temperature monitor in a single instrument
  • Version per DIN EN 14597
  • Overtemperature safe up to 600 °C
The safety temperature controller model STW15 has been designed for the operating medium of air (flue gas).

It will open a control circuit when the temperature on the temperature sensor exceeds the non-adjustable set point.
Features
  • High switching reliability
  • Temperature indicator and safety temperature monitor in a single instrument
  • Version per DIN EN 14597
  • Overtemperature safe up to 600 °C

Specifications

Nominal Size in mm

  • 72 x 72

Temperature Range

  • Overtemperature safe up to +600° C

Switch Point

  • fixed between 50 ... 300° C

Switch Point Accuracy

  • ± 6 K

Switching Differential

  • 12 K

Dial

  • Aluminium, White, Black Lettering

Measuring Principle

  • Bourdon Tube system

Contact

  • Micro switch

Contact Version

  • 1: fixed change-over Contact
  • 2: fixed change-over Contacts (Same switch point)

Switch Rating

  • Maximum 5 A, AC 250 V Non-inductive

Connection, Electrical

  • 0.8 x 6.3 mm blade terminal or terminal connection

Case

  • Plastic, Black

Mounting Option

  • With Mounting bracket

Ingress Protection

  • IP53 Case in accordance with EN/IEC 60529

Temperature Sensor

  • Stainless Steel

Threaded Connection

  • Steel, Galvanised

Measuring Line

  • 1.4571 Stainless Steel, Ø 2 mm

Length of the Measuring Line

  • Standard 1.5 m, Max. 5 m

Measuring Line Outlet

  • Eccentric Back Mount

Version

  • tested in accordance with DIN EN 14597 and Pressure Equipment Directive

Applications

  • Temperature monitoring device for heat generation plants
  • For heat generators with 2 fuels