Trotec TTK 355 Dehumidifier

  • Trotec TTK355 Dehumidifier
  • Trotec TTK355 Dehumidifier
  • Perspective view of the Trotec TTK355 Dehumidifier
  • Close up view of the pump out hose on the Trotec TTK55 dehumidifier
  • Protective cover for the Trotec TTK355 Dehumidifier
  • Protective covers for the whole range of Trotec Dehumidifiers

Trotec TTK 355 Dehumidifier

  • High dehumidification performance even at low temperatures at 5 °C
  • Maximum dust and dampness protection for all electrical components
  • Very easy to maintain construction
  • Washable pre-filters
  • Portable and easily stored anywhere thanks to its rotary compressor
  • Practical stacking groove for stable, space-saving storage and transport
  • Stackable with equally dimensioned models
  • Tried and tested German industrial design – protected prototype
  • 34 litres at 26.7 degrees and 60% relative humidity
  • 27.6 litres at 20 degrees and 60% relative humidity
  • 12 litres at 10 degrees and 60% relative humidity
  • Includes pump out with a 10m clear hose  

The new value-for-money leader in the 70-litre class Reduce high levels of relative humidity in minimum time or easily keep large rooms dry – the TTK 355 S is in its element, this is what it was made for.

This becomes possible because of a clever combination of a strong 1.27 kW rotary compressor and a quality fan for airflow rates of up to 1,000 m³/h.

Watch our video below on how to setup the handle on the Trotec TTK 355.

                     Relative Humidity
   60%    80%

5°C    8.4 litres    14.4 litres
10°C    12 litres    20.4 litres
15°C    18 litres    31.2 litres
20°C    27.6 litres    40.8 litres
25°C    31.2 litres    48 litres
26.7°C    34 litres
30°C    37.2 litres    55 litres
35°C    40.8 litres    70 litres


Thanks to the high air circulation, the tuned heat exchange system is always able to feed extreme humidity from the ambient air for quick drying. Up to 70 litres of humidity can be removed from the room air per day with just one TTK 355 S in this manner.

At the same time, compared with other defrost systems, the high-quality hot gas automatic defrost of the TTK 355 S guarantees a much more efficient dehumidification performance without defrost pauses on a time interval during which no dehumidification occurs.

Common location changes and use in rough construction site conditions are no problem for this condenser dryer: Thanks to the ergonomic construction and carriage design with a bar handle and large wheels, the TTK 355 S can easily be transported over uneven terrain or up and down stairs – the rotary compressor makes it possible to transport it anywhere. And the non-marking rubber wheels leave no marks on your floorboards or other sensitive undergrounds.

A special enclosure protects the electronic components of the dehumidifier from hazardous dust or moisture, which can interfere with the functionality and durability of the electronics.

The enclosure is in no way inferior to the impressive inner values: All components of the TTK 355 S are reliably protected and attractively combined in the tried and tested German industrial design – protected prototype.

Even in storage, the TTK 355 S makes a good impression – while taking up surprisingly little space. Due to its two practical stacking grooves on top, equally sized TTK‑S devices can be safely stacked to save space during transport and storage.

Clearly arranged control panel – protected by protective bars. (1)

The serial operating hours counter of the TTK 355 S commercial dehumidifier is optionally available as a dual counter for operating and kilowatt-hours. (2)

A special enclosure reliably protects the TTK 355 S dehumidifier electronics from dangerous inclusions. (3)

Two stacking grooves make it possible to stably stack equally sized TTK‑S commercial dehumidifiers to save space. (4)

A powerful condensate pump with a pump performance of up to 50 m distance and a maximum pump height of 4 m is also available for permanent drying with the TTK 355 S.

This can be used to permanently drain condensation from whole stories of buildings. (5)


COMMERCIAL DEHUMIDIFIERS OF THE TTK-S SERIES The new standard class – top of the class.

Robust metallic housing, strong rotary compressors, low-maintenance construction, high airflow rate and wide range of usable temperatures: Whether for use in a workshop, in construction, in storage or in a laboratory – the portable, commercial dehumidifiers of the TTK S series are the perfect drying aggregates for changing applications, even in rough conditions.

With the pioneering TTK S commercial dehumidifiers, you can now benefit from a variety of detailed solutions which save you time, enhance your performance and secure value retention – attractively combined in the tried and tested German industrial design – protected prototype.

Also protected – from dust and dampness, that is – are all electrical components of the devices. A special enclosure improves the protection of the electronic equipment from anything dangerous which may enter and impair the functionality and durability. This enclosure makes the commercial dehumidifier predestined for use in harsh conditions.

Due to its extremely low-maintenance construction, the new TTK S generation is easier to clean than ever before and due to its low power to weight ratio and its clever mobility features, it is easy to transport.

Nevertheless, in terms of dehumidification capacity, these dryers are no lightweights: The entire heat exchange system made of high-quality components was designed to work in harmony and guarantees the maximum drying efficiency of the devices in all temperature ranges – for example, even under 15 °C in unheated rooms.

Furthermore, compared with other defrost systems, the high-quality hot gas automatic defrost guarantees a much more efficient dehumidification performance without defrost pauses on a time interval during which no defrosting occurs!

Even in the storage, these commercial dehumidifiers make a good impression – while taking up surprisingly little space. Because they are equipped with two practical stacking grooves on their tops, equally sized TTK S devices can be safely stacked to save space during transport and storage.

Benefits in practice TTK 355 S:

  • Has non-colouring solid rubber tires
  • Allows for easy transport with the trolley design
  • Maximum dust and moisture protection for all electrical components
  • Practice optimized German industrial design
  • Multi stackability - even better handling property
  • Belongs to the maintenance-friendly TTK-S series of all time
  • Operating hours counter

Features and Benefits of the TTK 355 S dehumidifier:

  • Dehumidification performance / 24 h max: 70 litres
  • Operating range temperature: 5°- 32°C
  • Operating range humidity: 32 to 100 % RH
  • Airflow rate: 1000 m³/h (588 CFM)
  • Functioning principle: refrigerative dryer
  • Automatic defrost mode: hot gas
  • Input voltage: 230V (50Hz)
  • Power input max: 1.27 kW
  • Nominal current: 5,8 A
  • Refrigerant: R-410A (650 g)
  • Water tank (auto-off limit): 6 litres
  • Sound level dBA: 54
  • Weight: 39 kg
  • Length: 450 mm
  • Width: 510 mm
  • Height: 720 mm

    Coming soon

    General information
    Article number
    Dehumidification performance
    At 20 °C / 60 % RH [l/24h] 27.6
     AHAM At 26.7 °C / 60 % RH [l/24h] 34
    At 30 °C / 80 % RH [l/24h] 55
    Max. [l/24h] 70
    Amount of air
    Stage Max. [m³/h] (cfm) 1000 (588)
    Recommended room size construction drying
    class 2 2.4m ceiling-high 35
    Recommended room size dry keeping
    Min. temperature range [°C] 5
    Max. temperature range [°C] 32
    Min. humidity range [% RH] 32
    Max. humidity range [% RH] 100
    Electrical values
    Mains connection 230 V/50 Hz
    Nominal current consumption [A] 5.8
    Power input [kW] 1.3
    Recommended fusing [A] 10
    Rotary piston compressor SE
    Reciprocating piston compressor N/A
    Type of cooling agent R-410 A
    Amount of cooling agent [g] 650
    GWP factor 2,088
    CO2 equivalent [t] 1.36
    Suction Side pressure [MPa] 1.2
    Discharge Side Pressure [MPa] 4.2
    Water tank
    Contents in [Litres] 6
    Sound values
    Distance 1 m [dB(A)] 54
    Length (packaging excluded) [mm] 450
    Width (packaging excluded) [mm] 510
    Height (packaging excluded) [mm] 720
    (packaging excluded) [kg] 39
    Hot gas SE
    Electronic N/A
    Automatic dehumidification
    Non-stop dehumidification SE
    Analogue hygrostat SE
    Hygrostat-controlled SE
    Electronic hygrostat N/A
    Program-controlled N/A
    Axial SE
    Radial N/A
    Stages 1
    Condensate tank monitoring
    Container available SE
    Shut-off when full SE
    Indicator container full SE
    Room air filter
    Readily accessible SE
    Cleanable SE
    Ionizer selectable N/A
    Operating hours counter
    Operating hours counter SE
    Power meter OA
    Rubber-tyred metal wheels (non-marking) SE
    Carry/transport handle(s) SE
    Swivel casters with parking brakes SE
    Plastic wheels N/A
    Non-marking full-rubber wheels N/A
    Adjustable bar handle N/A
    Condensate drain
    Hose connection possible SE
    Hose included in the scope of delivery SE
    Condensate pump OA
    Recommended hose size [mm] 19
    Control panel
    Protective bar SE
    Digital display N/A
    Comfort button N/A
    Shelf life
    Stackable SE
    Housing design
    Steel coated SE
    Plastic N/A
    Stainless steel N/A
    Metal plastic composite housing N/A
    Aluminium N/A