New H1 range of heat detectors for hazardous areas

New H1 range of heat detectors for hazardous areas


E2S Warning Signals are pleased to announce the release of the new H1 range of heat detectors. Globally approved to UL, cUL, IECEx and ATEX standards employing explosion proof, flameproof, increased safety and intrinsically safe protection concepts, the H1 range contains devices with aluminium, stainless steel and GRP enclosures for use in Zone 1, 2, 21, 22 and Class I Zone 1, 2, 21, 22 and Class I/II Division 1 and Division 2 and are UL521 and CAN/ULC-S530 compliant.
The robust E2S termination enclosures are combined with D-A-F heat detector elements as an approved assembly to create a comprehensive solution for heat detection in hazardous areas. The industry standard Detect-A-Fire ® (D-A-F) rate compensated heat detector elements feature stainless steel enclosures and hermetically sealed contacts and are available in a wide range of temperatures.
Further details on the advantages of the E2S H1 rate compensated detectors can be found in the Technical Bulletin,.
All variants feature IP66/67 Type 4/4X/13/3R ratings for the harshest of environments and an optional protective guard for the element. Selected variants can be specified with an LED to indicate an alarm condition and with a wide range of addressable modules.



  • Version: D1xH1
    Enclosure material: Marine grade aluminium
    D1xH1-A: Ex db/tb Zone 1/21, AEx db/tb Class I Zone 1/21,
    Class I/II Div 1
    D1xH1-H: Ex db/tb Zone 1/21, AEx db/tb Class I Zone 1/21,
    Class I/II Div 1 – High temperature version +125°C/257°F
    D1xH1-E: Ex db eb/tb Zone 1/21, AEx db eb/tb Class I Zone 1/21,
    Class I/II Div 2
    Optional multi-position mounting bracket.



  • Version: D2xH1
    Enclosure material: Marine grade aluminium
    D2xH1-E: Ex db ec/tc Zone 2/22, AEx db ec/tc Class I Zone 2/22,
    Class I/II Div 2
    D2xH1-I: Ex ia/tb Zone 0/21, AEx ia/tb Class I Zone 0/21,
    Class I Div 1, Class II Div 2
    D2xH1-R: Ex ia/tb Zone 0/21, AEx ia/tb Class I Zone 0/21,
    Class I Div 1, Class II Div 2 – with EOL, series or LED



  • Version: GNExH1
    Enclosure material: Glass reinforced polyester GRP
    GNExH1-E: Ex db eb/tb Zone 1/21, AEx db eb/tb Class I Zone 1/21,
    Class I/II Div 2
    GNExH1-H: Ex db eb/tb Zone 1/21, AEx db eb/tb Class I Zone 1/21,
    Class I/II Div 2 – High temperature version +105°C/221°F
    GNExH1-I: Ex ia/tb Zone 0/21, AEx ia/tb Class I Zone 0/21,
    Class I Div 1, Class II Div 2
    GNExH1-R: Ex ia/tb Zone 0/21, AEx ia/tb Class I Zone 0/21,
    Class I Div 1, Class II Div 2 – with EOL, series or LED


  • Version: STExH1
    Enclosure material: 316L Stainless Steel
    STExH1-A: Ex db/tb Zone 1/21, AEx db/tb Class I Zone 1/21,
    Class I/II Div 2
    STExH1-H: Ex db/tb Zone 1/21, AEx db/tb Class I Zone 1/21,
    Class I/II Div 1 – High temperature version +125°C/257°F
    STExH1-E: Ex db eb/tb Zone 1/21, AEx db eb/tb Class I Zone 1/21,
    Class I/II Div 2


    Please contact your local representative or E2S salesperson for further information.