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Anti-condensation heating elements

Stop humidity in carters or in enclosures!

The ATEX/IECEx anti-condensation electrical heating elements (ECAC) by CETAL are a simple and effective solution for maintaining the temperature at the level required for the correct operating of a system in a carter or an enclosure.

Main uses: anti-condensation, defrosting, maintaining a continuous temperature.

The anti-condensation heating elements by CETAL are certified for operation in hazardous areas in zone 1 and 2.

ECAC are designed and manufactured according to your specifications.

Product overview

  • Self-regulation of the heating element temperature through limitation of the Watt density; a temperature control on the element is unnecessary
  • T3 temperature class
  • Marking: II 2 G Ex e II T3
  • Max. temperature on the element: 200 °C (T3) at 40 °C ambient temperature
  • Corrosion-resistant AISI 321 stainless steel tube material (1.4541)
  • Tube diameter Ø 8.5 mm
  • Supply voltage up to 400 V 1PH
  • Easy mounting: direct voltage supply connection through wire
  • Can be mounted in any position
  • Bracket for casing mounting


  • Reliability and robustness of the heating element. High quality raw material.
  • Perfect solutions:
    • Avoiding the dew point
    • Freeze protection
    • Temperature maintenance of equipment without casing
    • Defrosting

Operating conditions

  • Hazardous areas (ATEX/IECEx) and NEC 505
  • Onshore / offshore environment


  • Air, max load 0,1 – 8W/cm² acc to sheath temp, material: 321

Technical description

The watt density, tube diameter and the tube sheath are chosen to optimize the reliability and robustness (corrosion, temperature) of CETAL equipments.


  • Tubular heating element

Tube diameter & material

  • Tube diameter: 8.5 mm
  • Tube material: Stainless steel AISI 321
  • Tube type: sealed tube


  • 100% of the components come high quality supplier from Europe
  • 100% manufacture within CETAL factory

  1. Connection terminals
  2. Tube
  3. Insulation : magnesia oxyde (Mg O), to secure optimized heat transfer and electrical insulation.
  4. Resistance wire: Made of Nickel Chrome 80/20, it is the active part of the heating element (Joule effect)
  5. Cold length
  6. Sealing material: Keeps out external moisture. Different types (silicon, resins, cement) are used depending on the industrialapplication, the external medium and temperature.
  7. Output insulation: Made of steatite ou corundum, it provides dielectric insulation (creepage distance, distance in the air).
  • According to CE European directives and CE market (for Europe)
  • EC-type examination certificate LCIE01ATEX 0009 U
  • c CSA us
  • EAC & CU TR (former GOST)

Electrical tests

  • Power test by cold resistance measurement. Allowed tolerance: -5% and +10% of the nominal resistance value.
  • Insulation test, direct voltage 500V, mini cold value is > 100 Megohms
  • Dielectric test, (2U + 1000 V)  x 1,2 during 1 second
  • The stray current and the hot dielectric rigidity can be measured on a sample at operating temperature (on request).
  • 100% of the heating elements are tested before shipment (Final control)

Mechanical tests

  • Visual inspection

Dimensional test

  • Critical dimensions are tested

Other tests / operations

  • Helium test (on request)
  • Degreasing
  • Argon cleaning

Third party

  • Third party inspection (on request)
  • Power / voltage supply
  • The elements can be formed according to your specifications

* in compliance with the EC-type examination certificate and the IECEx certificate of conformity

Application example for temperature maintenance

Anti-condensation elements in a motor casing



Exemples of realizations