Inline Encapsulated Thermostats | ATEX Zone 1 Zone 2 | EXHEAT FXT-M

EXHEAT FX-M Inline Encapsulated Thermostats - ATEX Certified Zone 1 & Zone 2

EXHEAT FX-M Inline Encapsulated Thermostats – ATEX Certified Zone 1 & Zone 2

ATEX Thermostats | Zone 1 & Zone 2 (IIA, IIB, IIC) & Zone 21 & Zone 22 (IIIA, IIIB, IIIC)


Inline Encapsulated Thermostats

EXHEAT FXT-M inline encapsulated thermostats have been established as temperature control solution where space is at a premium with the capability of changing small and medium sized heaters to be able to retain a pre-determined ambient temperature for heating and air warming of Zone 1 & Zone 2 (Flammable Gas) and Zone 21 & Zone 22 (Dust) explosive atmospheres according to ATEX Directive.

The FXT-M is composed of a unique electronic potting compound, stainless steel shroud and polyolefin sheath. Robust and lightweight in design a main benefit of the thermostat is it requires minimal maintenance.

Similar to the FXT-DR and FXT-DI thermostats the FXT-M can be linked with the FX hazardous area compact enclosure heaters designed specifically for frost protection, anti-condensation and temperature control – operating in ambient temperatures up to +80°C.

Alternatively, when supplied with up to 10m of cable, the FXT-M can be installed to control any electrical item inside a cabinet or enclosure.

Features of EXHEAT FXT-M Inline Encapsulated Thermostats

  • Protection Method: Encapsulated thermostats
  • Voltage: 110 to 277VAC
  • Ambient Temperature: -50°C to +80°C
  • Temperature Class: T5 (T100°C) to T6 (T85°C). T5 and T6 thermostats are suitable for use in T1 to T4 (T450°C to T135°C) hazardous environments. Ensure ambient temperature limits are adhered to
  • Cable: 3M standard (up to 10M available on request)
  • Ingress Protection: Inline encapsulated thermostats with IP66

EXHEAT FXT-M Inline Encapsulated Thermostats

ATEX Certification & Installation

Certification: ATEX/IECEx II 2 G D
Ex mb IIC T6 to T5 Gb
Ex mb IIIC T85°C to T100°C Db

CU-TR.012/2011 CERTIFIED 1 Ex db IIC T6…T3 Gb X
Ex tb IIIC T85°C…T200°C Db X

Class I Div 2, Groups A, B C and D T6…T5
Class III, Div 2: Class II Div 2, Groups E, F & G.
Class I, Zone 1, AEx db IIC T6…T4 Class III, Zone 21:
Type 4 Ex mb IIC T6…T4 Gb Ex mb IIIC T85°C..T135°C Db IP66

FXT-M Thermostat Mounting Arrangement

FXT-M Thermostat Mounting Arrangement

Please download EXHEAT FXT-M 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.

FXT-M Encapsulated Inline Thermostats

FXT-M Encapsulated Inline Thermostats

Inline Encapsulated Thermostats


  • Acoustic enclosures
  • Condensation prevention
  • Control/monitoring panels
  • Control valve housings
  • Fire hose cabinets
  • Frost protection
  • Generators
  • Instrumentation cabinets
  • Manifolds
  • Motor enclosures/cabinets
  • Valve blocks
FXT-M Inline Encapsulated Thermostats - Dimensions

FXT-M Inline Encapsulated Thermostats – Dimensions


Inline Encapsulated Thermostats


EXHEAT Part Number Open / Close
Temperature (+/-3°C)
Voltage Max
FXT-M-5 16°C / 5°C 110-120V
6.0 A
3.3 A
4.8 A
FXT-M-20 26°C / 15°C
FXT-M-40 37°C / 26°C
FXT-M-60 69°C / 58°C 9.0 A

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

T&D – Experts in Equipment for Explosive AtmospheresExplosive Atmospheres EX

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.

Lighting | Sockets | Glands | Control Stations | Isolators | Push Buttons | Hazardous Area Equipment UK & Export Sales

Data Sheets