ATEX Temperature Controller-Limiter and Power Selector | Precise Control in Hazardous Environments

ATEX Temperature Controller

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  • Intrinsically safe for use in hazardous environments with explosive gases or dust
  • Comprehensive solution for precise temperature control, including power selector function
  • User-friendly and intuitive handling
  • Can be installed both inside and outside hazardous areas
  • Precise and accurate temperature control with notification of sensor break and short-circuit
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Introducing the ATEX Temperature Controller-Limiter and Power Selector. The perfect solution for controlling and limiting temperature in hazardous environments where explosive gases or dust are present. This combination device is intrinsically safe and user-friendly, making it an ideal choice for those who need precise temperature control in potentially explosive atmospheres.

Comprehensive Solution for Controlling and Limiting Temperature

Featuring a comprehensive solution for controlling and limiting temperature, including power selector function, this device comes equipped with a measurement display featuring 7-segment-LED's and a relay output alarm with 1 CO contact 5A, 250 V. Additionally, the intrinsically safe and galvanic isolation connection of the Pt100 DIN EN 60751 (IEC 60751) resistance thermometer in 3- or 2-wire circuit ensures precise and accurate temperature control.


  • Suitable for all ATEX products and all temperature classes
  • Type of protection: Ex-i (intrinsically safe) for Pt100 sensors
  • User-friendly and intuitive handling
  • Extensive documentation for the explosion protection document
  • Integrated temperature switch (switch-off temperature approx. 90 °C)
  • Notification of sensor break and sensor short-circuit
  • Fuse for the control circuit is internally accessible via terminal
  • Measurement display with 7-segment-LED's
  • Switching point accuracy < 1 K
  • Controller hysteresis 2 K
  • Relay output alarm 1 CO contact 5A, 250 V
  • Intrinsically safe and galvanic isolation connection of the Pt100 DIN EN 60751 (IEC 60751) resistance thermometer in 3- or 2-wire circuit


  • Power supply: 230 VAC (50-60 Hz)
  • Load current measured value: max. 25 A (external protection 25 A)
  • Sensor: PT100 (EX-i), 3- or 2-wire circuit
  • Intrinsically safe measuring circuit: Ex ib IIC: Uo= 6.3 V, Io= 22 mA, Po= 35 mW max. Co= 1.5 μF, max. Lo= 10 mH, Ex ib IIB: Uo= 6.3 V, Io= 22 mA, Po= 35 mW max. Co= 8.2 μF, max. Lo= 10 mH
  • Protection degree: IP 64 acc. to EN 60529
  • Measuring range: 0…450 °C
  • Cable glands: 1x M25 power supply, 1x M25 heating cable, 1x M16 sensor cable
  • Dimensions LxWxH / Weight: 260 x 160 x 135 mm / ca. 6.0 kg
  • Material: aluminium, mounting on base plate (Enclosure)

Data sheet

Temperature controller
Temperature range
0 - 450°C
Overheating protection
ATEX Marking
II 2D Ex tb IIIC IP6X T90°C Db
II 2G Ex e ib [ib Gb] mb IIC T4 Gb
TÜV 10 ATEX 556065
External fuse
25 A automatic cut out, Type A, B, C (Siemens), or Z, B, C (ABB)
Power input
Up to 11 VA (without load)
Pt100 DIN resistance thermometer

Specific References


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Our products are used worldwide

From Australia to Norway and Brazil to Germany. We have customers all over the world using our products.

Equis Australia
Teknologisk Institut
Pontis Engineering
Nordic Aviation