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FX Enclosure/Cabinet Heaters

The range of SEICO FX enclosure heaters includes a number of fixed-duty and self-regulating thermal solutions, for compact and efficient heating of housings and cabinets in hazardous areas of Zone 1 or 2 (gas groups IIA, IIB, IIC) or Zone 21 or 22 (dust groups IIIA, IIIB, IIIC).

The FX heaters are available in standard “double-finned”, “flat”, or “block” versions – and in the case of the self-regulating FXS models, can be individually manufactured to your specific requirements. Furthermore they can be easily integrated into the FXT thermostat range for improved frost protection, condensation protection and temperature control.

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  • Compact, hard anodised aluminium profile suitable for enclosures in onshore and offshore applications
  • Available in self-regulating and fixed-duty designs
  • Tailored design option available for self-regulating models

  • Condensation prevention
  • Control panels
  • Control valve housing
  • Fire hose cabinets
  • Frost protection
  • Generators
  • Instrumentation cabinets
  • Motor enclosures
  • Valve blocks


  • ATEX / IECEx Ex II 2 G D
    Ex db IIC T4 to T3 Gb
    Ex tb IIIC T135°C to T200°C Db
  • CU TR (EAC)
    CU-TR.012/2011 CERTIFIED 1 Ex db IIC T4…T3 Gb X
    Ex tb IIIC T135°C…T200°C Db X
  • CSA: Class I Div 2, Groups A, B, C, D T4…T3
    Class II Div 2, Groups E, F, G T4…T3
    Class I Zone 1, AEx db IIC T4…T3 Gb
    Zone 21, AEx tb IIIC T135°C…T200°C Db

Ambient Temperature

  • -60°C to +180°C


  • 3m standard (up to 10m available on request)

IP Rating

  • IP66 / IP68


  • FXB-FD: Wall or rail mounted vertically using the supplied mounting kit
  • FXH-FD: Directly bolted to the enclosure or a bracket (not supplied)


  • 30 to 500W

T Class

  • T4 (135°C) and T3 (200°C)


  • 110 to 277VAC
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