explosion-proof enclosure heater CREX 020 T4 - STEGO


CREX 020 | 50 W to 200 W (T4)
Temperature class T4 (max. 135 °C): enclosure heater for explosion-proof environments prevents condensation and changes in temperature. Reliable protection against frost inside switch cabinets, control cabinets and measuring equipment in potentially explosive environments or mines susceptible to firedamp.
  • Zero-maintenance convection heater without fan
  • High-performance cartridge heater
  • Heater body: aluminium profile, anodised
  • Mounting mechanisms: screw flange, clip
  • Ready to connect: 1 or 2 m silicon cable with strain relief

Overview Technical Data

Ex db IIC T4 Gb
Ex tb IIIC T135°C Db IP66
I M2 Ex db I Mb
< +135 °C (+275 °F)
high performance cartridge
aluminium profile, silver anodised
silicone cable (halogen-free) 3 x 0.75 mm², length 1 m
0,75 to 2,5 mm²
clip for 35 mm DIN rail, EN 60715
for heating body sizes 80 x 48 mm and 120 x 60 mm and
screw fixing with 2 plug-on flanges for all heating body sizes,
optional widthwise mounting
vertical airflow (connection on bottom)
-60 to +50 °C (-76 to +122 °F) / -60 to +85 °C (-76 to +185 °F)
< 90% RH (non-condensing)
IP66 / I (earthed)
EPS 16 ATEX 1 109 X
IECEx EPS 16.0048X
IN METRO DNV 18.0010 X
EAC TC RU C-FR.ГБ08.В.02639

Product Variants

Notice: 02043.0-10, 02044.0-10, 02043.9-10 and 02044.9-10 only with screw flange fixing due to size

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

Your product inquiry

Your direct contact

STEGO Elektrotechnik GmbH
Kolpingstraße 21
74523 Schwäbisch Hall