STEGO Mechanical thermostat FZK 011


FZK 011
The set value corresponds to the upper switch point at which the contact breaker opens. The set value, minus the switch temperature difference of 5 K (and tolerances) corresponds to the lower switch point at which the contact breaker closes. The mechanical thermostat is used for controlling heaters, coolers, filter fans or signal devices.
  • Adjustable temperature
  • Small hysteresis allows for precise regulation
  • High switching capacity
  • Change-over contact (heating or cooling)
  • Clip-mounted

Overview Technical Data

5 K (-3/+2 K tolerance)¹
thermostatic bimetal
change-over snap-action contact
> 100,000 cycles
10 mA
AC 250 V / AC 120 V, 10 (4) A
DC 30 W
AC 250 V / AC 120 V, 5 (2) A
DC 30 W
AC 16 A for 10 s
4-pole terminal, clamping torque 0.5 Nm max.:
rigid/stranded² wire 2.5 mm² (AWG 14)
clip for 35mm DIN rail, EN 60715
plastic according to UL94 V-0, light grey
67 x 50 x 38 mm
~ 0,1 kg
-45 to +65 °C (-49 to +149 °F)
< 90% RH (non-condensing)
UL File No. E164102, EAC

¹ If the Normally Closed contact is used, the switch temperature difference could be reduced by connecting terminal "N" (RF heating resistor). It causes the thermal feedback which is subject to surrounding conditions and thus has to be determined for each individual application.
² 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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Kolpingstraße 21
74523 Schwäbisch Hall