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

EXHEAT Hazardous Area Air Warmers ATEX & IECEx

ATEX Enclosure Heater Zone 1 & Zone 2 (Gas Group IIC) Hazardous Areas

Hazardous Area Enclosure Heaters

ATEX Certified

EXHEAT HEF hazardous area enclosure heaters provide increased safety (Ex e) heating and air warming for Zone 1 or Zone 2 (Flammable Gas) hazardous areas and explosive atmospheres according to ATEX Directive.

The EXHEAT HEF range of enclosure heaters has self regulating properties eliminating the need for a thermostat. The compact design of the HEF makes this enclosure heater ideal for anti-condensation, frost protection and temperature control.

EXHEAT HEF hazardous area enclosure heaters are certified to meet ATEX equipment directive and IECEx standards and can be mounted in almost any orientation.

Features of EXHEAT HEF Enclosure Heaters

Hazardous Area Certification – Declared in accordance with ATEX directive 2014/34/EU and CSA (Divisions and Zones) standards for North American markets
Design – Enclosure heaters are compact, low profile, 316 stainless steel case, requires minimal space
Self-regulating can be used without a thermostat
Temperature Range – suitable for ambient temperatures from -60°C (-55°C for CSA certified models only) to +80°C
Installation – Mounting of the enclosure heater can be in any orientation
Design allows for closer installation proximity to internal components and cables (minimum distance 100mm away)

Winterisation

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.

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 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

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

Air Heaters | Immersion Heaters | Line Heaters | Thermostats | ATEX & IECEX Certified Electrical Heaters

T&D – Experts in Equipment for Explosive Atmospheres

Trust Thorne & Derrick to specify and supply from stock safe and reliable Heat, Light & Power Products for use in hazardous area locations and explosive atmospheres certified to international standards including ATEX and IECEx – this includes Zone 1 / Zone 2 (Flammable Gas) or Zone 21 / Zone 22 (Dusts) and Class I, Division 1 and Division 2 hazardous area requirements.

Since 1985 as Leaders in ATEX Innovation we can facilitate succession planning for the replacement of obsolete, non-conformant and legacy equipment – we are the provider of innovative solutions to ensure ATEX and IECEx Compliance for Electrical, HVAC & Process Instrumentation systems in the explosive atmosphere industries.