Business Areas

Ex Temperature Limiter

Type BTB/BSTW - 16A EX temperature monitor BSTW / temperature limiter BTB/BSTB change-over controller housed in Ex e certified polyester enclosure. Heaters, fans, motors and other equipment are energised and de-energised by means of this thermostat when specific temperature ranges are exceeded.


  • 16A switching capacity
  • Pre-set limit point for BSTB
  • Suitable for use in Zone 1 + Zone 2 areas
  • Temperature setting directly in Zone 1
  • Zone 21 and 22 areas possible
  • Resettable lockout on the device
  • Direct heating circuit connection via sheathed cable/cold lead
  • Temperature ranges from -20°C to +500°C possible


These devices can also be used to control the temperature in air or on various surfaces. The fail-safe temperature limiter BTB and the fail-safe temperature limiter BSTB are produced with restart lockout, resetting (reopening) is only possible at the device.


Member of NIBE Group

SAN Electro Heat a/s was founded in 1950 in Copenhagen. Today we are situated in North Sealand and we are part of the Swedish NIBE Group.

Contact us

Gillelejevej 30b
DK-3230, Graested, Denmark

CVR: 42165913

Tel.: +45 4839 8888
Fax: +45 4839 8898
[email protected]