STEGO Thermostat switch contact maker STS 011


STS 011
The mechanical thermostat closes when the temperature rises. Used for regulating filter fans, heat exchangers, coolers or switching signal devices in the event that the temperature limit is exceeded. The bimetal thermostat has a small hysteresis.
  • Engaging adjustment dial
  • Small hysteresis allows for precise regulation
  • Optimised air inlets
  • High switching capacity

Overview Technical Data

4K (±3K tolerance)
thermostatic bimetal
snap-action contact
> 100,000 cycles
AC 250 V, 10 (2) A / AC 120 V, 15 (2) A
DC 30 W at DC 24 V to DC 72 V
AC 16 A for 10 s
2-pole terminal, clamping torque 1 Nm max.:
rigid/stranded1 wire 2.5mm² (AWG 14)
clip for 35 mm DIN rail, EN 60715
clip for 35mm DIN rail, EN 60715
70 x 33 x 42 mm
~ 50 g
-45 to +80 °C (-49 to +176 °F)
< 90% RH (non-condensing)
VDE, UL File No. E164102, EAC

¹ When connecting with stranded wires, wire end ferrules must be used.

Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.

Product Variants

Summary of your request

Art. No. Connection casing Casing Productname Series Heating element Heater body Model Axial fan Operating voltage Operating voltage
Operating voltage
Voltage type Frequency Heating capacity Inrush current
Surface temperature Rec. pre-fuse
T (time-delay)
Connection Connection PE Air outlet temperature Switch-off temperature Switch-off temperature 2 Switch-on temperature Switch-on temperature 2 Drilling template Operating temperature Flow rate,
free flow
Flow rate,
with filter
Setting range Setting range 2 Current
Nominal current
of socket
Average noise level Enclosure cut-out Enclosure cut-out Storage temperature Storage humidity Ambient temperature Operating humidity Speed Switching capacity
Switching current
Load resistance (external) External Sensor Measuring range Measuring range 2 Note Note 2 Note 3 Note 4 Reaction time Contact type Service life Operation indicator Control contact -
Signal current
Electrical protection Switch Socket Material Material sealing Air permeability Mounting Air intake/Air outlet Filter material Measuring signal Switch temperature
Lamp type Luminous flux Light colour Length / Depth Width Height Diameter Installation depth Fitting position Mounting frame Weight Sensor element Protection class Protection type Protection type UL VDE UL EAC METRO ATEX Ex Protection type Gases Ex Protection type Mine applications Ex Protection type Dusts Temperature class Temperature safety
Accessory Accessory 2 Accessory 3 Accessory 4 Art. No. Accessory Art. No. Accessory 2 Art. No. Accessory 3 Art. No. Accessory 4 Catalogue Article CAD

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STEGO Elektrotechnik GmbH
Kolpingstraße 21
74523 Schwäbisch Hall