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EXHEAT HEF | Hazardous Area Enclosure Heaters Zone 1 Zone 2 ATEX

EXHEAT

HEF

Electrical Heating Products For Explosive Atmospheres

30W to 500W

The HEF range of hazardous area heaters manufactured by EXHEAT are self-regulating, automatically adjusting its output to match ambient temperatures – the EXHEAT HEF range of electric heaters are ATEX Certified & Approved and suitable for ambient temperatures from -60°C (-55°C for CSA certified models only) to +80°C. The EXHEAT HEF range of enclosure heaters can be mounted in any orientation.

This range of electrical heating products are certified for use in hazardous areas where the potentially explosive atmosphere is classified as a Zone 1 or Zone 2 (IIA, IIB, IIC) gas group according to ATEX.

HEF heaters are self-regulating, automatically reducing its output as the ambient temperature rises. If overall enclosure temperature control is required, it is recommended that the HEF heater be used in conjunction with the AFT, HFT or FXT flameproof air sensing thermostats in hazardous areas industries and applications including onshore and offshore, battery stores, paint/solvent workshops and spraybooths, enclosures and cabinets and frost protection.

➡ Extensive range of electrical heating solutions are available including Exd Flameproof type products.

Thorne & Derrick International, based in the UK, are Specialist Distributors of Explosion Proof & Protection Equipment to provide safe and reliable Power, Heat, Ventilation & Lighting to hazardous areas.

EXHEAT HEF enclosure heaters provide frost protection and air heating to prevent equipment breakdowns due to freezing condensation – this ensures the continuous operation of delicate instrumentation in enclosures and maintaining room ambient temperatures at safe working levels.

➡ More Information: Specification & Technical Information for EXHEAT HEF

EXHEAT Electrical Heaters | HEF | Zone 1 & Zone 2 Hazardous Area Heating

EXHEAT HEF Hazardous Area Enclosure Heaters

ATEX Certification & Installation

ATEX Certified Enclosure Heaters (Hazardous Area Zone 1 & Zone 2)

Hazardous Area Enclosure Heaters For Zone 1 & Zone 2 Hazardous Areas

Certification: ATEX / IECEx
  II 2 G Ex eb IIC T4…T3 Gb

CSA (CAN & USA)
CAN: Class I, Division 2, Groups A, B, C and D, T3 or T4
CAN: Ex e IIC T3 or T4 Gb
USA: Class I, Division 2, Groups B, C and D, T3 or T4
USA: Class I, Zone 1, AEx e IIC T3 or T4 Gb

CU TR (EAC)
2Ex e II T4 Gb

KGS
Ex e IIC T4

HEF Hazardous Area Enclosure Heaters – INSTALLATION

  • The enclosure heater must be installed in accordance with IEC / EN 60079-14
  • HEF should be securely fixed in position and all connections checked for tightness before energising
  • The HEF heater is designed for use inside an enclosure. The supply cable is not suitable for use outside an enclosure and must be protected from all risk of damage

Please download EXHEAT HEF hazardous area enclosure heaters O&M manual for full details on installation and maintenance procedures – this includes wiring diagrams, earth connection and pre installation inspection and checks.

Heater Power Rating The HEF range is available in a nominal 30W, 50W, 100W, 200W and 500W outputs
Casing 316 perforated stainless steel
Controls The HEF is self-regulating, automatically reducing its output as the ambient temperature rises. If overall enclosure temperature control is required, it is recommended that the HEF heater be used in conjunction with the AFT, HFT or FXT flameproof air sensing thermostats
Mounting The heater may be mounted in any orientation, using appropriate securing bolts through the mounting feet or DIN rail holes
Element Self-regulating
Voltage Models available for 110V to 120V and 230V to 240V 1 phase supplies (max 254V subject to design parameters)

The EXHEAT HEF must be installed according to IEC / EN 60079-14 and should be securely fixed in position and all connections checked before energising.

The HEF is designed for use inside an enclosure as the supply cable is unsuitable for use outside and must be protected by the enclosure to reduce the risk of damage.

EXHEAT HEF Hazardous Area Enclosure Heaters – Applications

EXHEAT

EXHEAT Stockist – Worldwide Delivery, Competitive Quotations

  • Condensation prevention
  • Container skid housing
  • Control/monitoring panels
  • Control valve housings
  • Fire hose cabinets
  •  Frost protection
  • Generators
  • Instrumentation cabinets
  • Manifolds
  • Motor enclosures/cabinets
  • Temperature fluctuations

EXHEAT HEF Hazardous Area Enclosure Heaters Product Range

These enclosure heaters are suitable for Zone 1 & Zone 2 (IIA, IIB, IIC) gas groups according to ATEX | IECEx Directive and Class I, Division 2 (Groups A, B, C, D).

EXHEAT HEF Hazardous Area Enclosure Heaters - Dimensions

EXHEAT HEF Hazardous Area Enclosure Heaters – Dimensions

Enclosure Heaters

Enclosure Heater Model T Class Hazardous Area Watts Rating Voltage Weight (Kg)
EXHEAT HEF30 T4 Zone 1 & Zone 2 30 110V or 240V 0.4
EXHEAT HEF50 T4 Zone 1 & Zone 2 50 110V or 240V 1.0
EXHEAT HEF100 T2-T4 Zone 1 & Zone 2 100 110V or 240V 1.5
EXHEAT HEF200 T2-T4 Zone 1 & Zone 2 200 110V or 240V 3.0
EXHEAT HEF500 T2-T4 Zone 1 & Zone 2 500 110V or 240V 6.5

 

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