CR 027 enclosure heater STEGO


CR 027 | up to 650 W
This heater with PTC element is designed to prevent frost and condensation inside the control cabinet and enclosure. The installed fan also intensifies the effect of the heat by convection. The integrated, adjustable thermostat saves space in the application.
  • Adjustable, integrated thermostat
  • Plastic enclosure, touch-safe
  • Optical function indicator
  • Temperature monitor to prevent overheating

Overview Technical Data

PTC resistor - temperature limiting
to protect against overheating in case of fan failure,automatic reset
airflow see tableservice life 50,000 h at +25 °C (+77 °F)
2-pole clamp 2.5 mm², clamping torque 0.8 Nm max
plastic according to UL94 V-0, light grey
thermostat control lamp
clip for 35mm DIN rail, EN 60715
100 x 128 x 165 mm
vertical airflow (air outlet up)
-45 to +70 °C (-49 to +158 °F)
< 90% RH (non-condensing)
IP20 / II (double insulated)
VDE, UL File No. E204590, EAC

Product Variants

Notice: Heating capacity at +20°C (+68°F) ambient temperature; Setting range thermostat of switch temperature difference 7K (+4K tolerance) 

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