EXHEAT HFT40 Hazardous Area Thermostats | Flameproof Air Sensing Thermostat Zone 1 Zone 2

Product Overview

Hazardous Area Thermostats

EXHEAT HFT40 hazardous area thermostats provide temperature control for hazardous area heating and air warming for Zone 1 & Zone 2 (Flammable Gas) explosive atmospheres according to ATEX Directive.

The EXHEAT HFT40 thermostat is supplied in a weatherproof or explosion proof enclosure to compliment the range of hazardous area air warmers and is designed for the temperature control of work or storage areas – suitable for ambient temperatures from -60°C to +60°C.

HFT40 Hazardous Area Thermostats Key Features

• Temperature range: 0–40°C

• Rated current: 20A at 250V AC

• Flameproof Ex d certified for Zone 1 & 2

• ATEX and IECEx approved

• Ingress protection: IP6X

• Aluminium flameproof enclosure

• Internal or external adjustment options

• Installation – wall mounted thermostats for hazardous area locations

• Ambient temperatures from -60°C to +60°C

ATEX Certification

Certification: ATEX / IECEx II 2G Ex db IIC T6 Gb
CSA (CEC / NEC) Class I, Division 2, Groups A, B, C, D; T6, Type 4X (USA / CAN)
CSA (CEC) Ex db IIC; T6 Gb; IP66 (CAN)
CSA (NEC) Class I, Zone 1, AEx db IIC; T6 Gb; IP66 (USA)
CU TR (EAC)

ATEX / IECEx II 2G Ex db IIC T6 Gb

CSA (CEC / NEC) Class I, Division 2, Groups A, B, C, D; T6, Type 4X (USA / CAN)
CSA (CEC) Ex db IIC; T6 Gb; IP66 (CAN)
CSA (NEC) Class I, Zone 1, AEx db IIC; T6 Gb; IP66 (USA)

CU TR (EAC)

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

EXHEAT HFT40 HAZARDOUS AREA thermostats – APPLICATIONS

Applications for these hazardous area thermostats include:

• Accumulator System Cabinet
• Acoustic Enclosure
• Air Heating for Instrumentation
• Anti Condensation Heater
• Anti-Freeze
• Battery Cabinet Heater
• Cabinet
• Chemical Injection Cabinet
• Compressor Enclosure
• Compressor Frame Enclosure
• Condensation Prevention
• Control / Monitoring Panels
• Control Housing
• Diesel Generator Enclosure
• Electrical Panel
• Enclosures
• Fire Equipment Cabinet
• Frost Protection
• Gas Seal Panel
• GRP Enclosure
• Hazardous Area Process Temperature Measurement
• Heating Cabinet
• Instrumentation Cabinet
• Instrumentation for Compressor Package
• Junction Boxes
• Machine Enclosure
• Motor Cases/Enclosures
• Motor Enclosure
• Offshore Cabinet
• Offshore Panel Heater
• Outdoor Telecommunications Cabinet
• Panel for Compressors
• Panel Heaters
• Power Distribution Panels
• Process Temperature Measurement
• Pump Enclosure Safety Stat
• Silo Base Enclosure warming
• Skid Enclosure
• Switchgear Panel/Cubicles
• Temperature Measurement
• Thermowell Assemblies
• Thermowells
• Transformer Enclosures
• Transmitter Enclosures
• Wardrobe

EXHEAT HFT40 Hazardous Area Thermostats

These HFT40 hazardous area thermostats are suitable for Zone 1 & Zone 2 (IIA, IIB, IIC) gas groups according to ATEX.

What is the temperature range of the EXHEAT HFT40?

The EXHEAT HFT40 operates within a specific temperature range ideal for industrial applications. Discover the exact range and its use cases.

Is the HFT40 suitable for hazardous areas?

The HFT40 meets key certifications for hazardous locations. Find out where it can be safely installed.

What is the current rating of the HFT40 thermostat?

This thermostat is designed for industrial power loads. Learn more about its current and voltage ratings.

Related Products

• EXHEAT AFT Thermostat (flameproof air-sensing, stainless steel, IP66)

• EXHEAT RFT Thermostat – process-sensing in flanged boss for liquid applications

• EXHEAT FXT Thermostat – compact, enclosure-mounted air thermostat

Need Help Choosing the Right Model?

Speak to our hazardous area heating specialists for expert advice on product selection, certification support, or installation queries.

• Over 40 years’ experience in industrial heating

• Authorised EXHEAT distributor

• Fast UK & international delivery

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.