TTR 250 Ex stainless steel desiccant dehumidifiers

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TTR 250 Ex stainless steel desiccant dehumidifiers

For use in Ex-proof zones ...

The TTR 250 Ex complies with the ATEX Products Directive 2014/34/EU and was specially developed for dehumidification in hazardous areas (non-conductive dusts).

Ex protection: ATEX zone 22 (Ex II 3D Ex c T240 °C)

With the TTR 250 Ex you can benefit from a professional desiccant dehumidifier originally produced by Trotec which has been developed and manufactured according to the highest of quality standards in Germany.

Dual counter with additional MID-compliant* registration of the power consumption (optional)

The standard operating hours counter of the TTR 250 Ex is optionally also available as a dual counter for the additional MID-compliant registration of the power consumption. 

A few practical benefits:

  • Robust high-quality dehumidifier
    made in Germany
  • Corrosion-resistant stainless steel housing
  • Integrated heat recovery
  • Self-regulating PTC heating
  • Ampere meter to control the operating condition
  • Operating hours counter
  • Dual counter with additional MID-compliant* registration of the power consumption (optional)
  • Ex-protection model

* What does MID compliant mean?

The European Measuring Instruments Directive (MID) has replaced the existing rules of national approval and subse-quent calibration in some areas. As a result, all power meters, which are used for energy consumption billing, must be MID compliant in the future.


TTR 250 Ex Desiccant Dehumidifier show in Trotec online shop

Technical data

Technical data
General information
  Article number
Dry air (in case of intake air 20°C / 60 % RH)
  Dehumidification [kg/24h] 26.4
  Dehumidification [kg/h] 1.1
  Min. air volume [m³/h] 130
  Max. air volume [m³/h] 200
  Nominal air volume | Dry air (in case of intake air 20 °C / 60 % RH) [m³/h] 180
  External compression | Dry air (in case of intake air 20 °C / 60 % RH) [Pa] 400
  Connection inlet Ø [mm] | Dry air (in case of intake air 20 °C / 60 % RH)
  Connection outlet Ø | Dry air (in case of intake air 20 °C / 60 % RH) [mm] 100
Regeneration air
  Nominal air volume | Regeneration air [m³/h] 50
  External compression | Regeneration air [Pa] 100
  Connection outlet Ø | Regeneration air [mm] 80
Operating principle
  Operating principle TTR Bisorp Mono
Operating range
  Min. temperature [°C] -20
  Max. temperature [°C] 35
  Min. humidity [% RH] 0
  Max. humidity [% RH] 100
Electrical values
  Mains connection 230 V/50 - 60 Hz
  Nominal current consumption [A] 5.7
  Power input [kW] 1.3
  Power input heating [kW] 1.2
  Recommended fusing [A] 16
Electric connection
  Cable length [m]
  Terminal connection
Sound values
  Distance 1 m [dB(A)] 57
Automatic dehumidification
  Non-stop dehumidification
  Length (packaging excluded) [mm] 500
  Width (packaging excluded) [mm] 350
  Height (packaging excluded) [mm] 435
  (packaging excluded) [kg] 21
Equipment, features and functions
Housing type
  Stainless steel
  Powder coating
  Metal plastic composite housing
  Non-marking rubber feet
  Carry/transport handle(s)
  Transport frame
  Swivel casters with brake
  Trestle rollers/ fixed castors
  Non-marking rubber wheels
  Crane lifting gear
  Forklift pockets
  Stacking device
  Operating hours counter
  Integrated heat recovery
  Filter monitoring
  Self-regulating PTC electric heating
  Ex protection model
  Air volume regulation
  DIN socket for external ON/OFF
  Hygrostat (mechanical)
  Moisture control
  Moisture and temperature registration
  Sensor-supported Flowmatic control
  Variable-speed rotor drive
  Terminals for external ON/OFF
  Power meter
  Hygrostat (electronic)
Regeneration heating design
  Electric PTC
Device version
  Indoor installation (standard)
  Shelter against the weather
  Hiring model

 standard equipment

 optionally available

 not available



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