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Thermostat - STO 011/STS 011


  • Thumbwheel setting dial
  • Small hysteresis
  • High switching capacity
  • Anti frost assurance
  • Optimized housing for better air flow

Product description

The mechanical thermostat is a two state regulator with small hysteresis. The setting wheel has an anti frost assurance. The housing ensures an optimized air circulation around the bimetal.


STO 011: Thermostat (NC); contact breaker for regulating heaters. The contact opens when temperature is rising.


STS 011: Thermostat (NO); contact maker for regulating of filter fans and heat exchangers or for switching signal devices when temperature limit has been exceeded. The contact closes when temperature is rising.


Articles Control range temperature from Control range temperature from Control range temperature to Control range temperature to
0 °C 60 °C
0 °C 60 °C
32 °F 140 °F
32 °F 140 °F



STO 011 Thermostat, 0-60°C, normally closed

spinner symbol


Approvals CE, cULus, EAC, RoHS, UL E164102, VDE
Contact resistance <10 mΩ
Control range temperature from 0 °C
Control range temperature to 60 °C
Depth 42 mm
Height 70 mm
Hysteresis Temperature 4K
Inrush Max 16 A
IP Class IP20
Material Plastic Housing Plastic
Operational Temperature -45°C ... +80°C
Storage temperature -45°C ... +80°C
Tolerance for switch on ±3K
Tolerance switch off ±3K
Weight 0,05 kg
Width 33 mm
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