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Commercial dehumidifier TTK 650 S
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  2. Products ‑ HighPerformance
  3. Dehumidification
  4. Condensation dehumidifiers, mobile
  5. Commercial dehumidifiers of the TTK-S series (white)
  6. TTK 650 S

Commercial dehumidifier TTK 650 S

Reliable technology and large drying capacity

Black-white. Tip-top.

Good and cheap. The TTK 650 S available exclusively at Trotec is of traditional EU manufacturing and demonstrates in a respectable way that a price level of the Far East is indeed compatible with robust brand quality.

Using this powerful device for drying after water damages or for construction drying you can benefit from a budget-friendly dehumidification solution without compromising in terms of workmanship and reliability.

Even frequently changing sites do not pose a problem to the TTK 650 S because thanks to the stable carriage construction with bar handle and large wheels for maximum mobility this dehumidifier can be transported quickly and easily from one site of application to the next.

Permanent mode for construction drying applications

The possibility of connecting an external condensate drain – if required with an optional condensate pump – also makes the TTK 650 S ideally suitable for longer unattended dry keeping tasks, e.g. for construction drying.

The operating switch of the TTK 650 S is protected from dust and spray water by a protective cap, and a slotted hygrostat rotary switch protects against inadvertent misadjustment of the switch position.

The professional hot gas automatic defrost system of the TTK 650 S guarantees effective dehumidification results even at low temperatures. Due to its very high dehumidification performance, this commercial dehumidifier is equipped with a direct connection for condensate discharge instead of a water tank.

The TTK 650 S is optionally also available with an integrated operating hours counter or a MID-compliant dual counter for operating and kilowatt hours. 

What does MID compliant mean? 

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

Investment protection for your drying devices

Particularly during construction drying operations in summer or when drying water damages, it is very likely that climate conditions arise which may significantly shorten the lifetime of condenser dryers – regardless of the make. We as manufacturer care about the fact that for process-related reasons your condenser dryers often have to be replaced much too soon, hence we have prepared a valuable practical recommendation relating to the investment protection of your drying devices. Click here to find out more ...

Technical construction drying

Did you know that every construction dryer is at the same time a commercial dehumidifier, but that not every commercial dehumidifier is automatically a real construction dryer? Here you can find out the reasons for this, and why hot gas defrosting makes the decisive difference ...

Environmentally friendly refrigerant R-454C

Hydrofluorolefin (R-454C) as environmentally friendly refrigerant in dehumidifiers

Every year, several million tonnes of environmentally harmful CO2 emissions (greenhouse gases) are emitted into the air by synthetic refrigerants. For this reason, the utilization of alternative refrigerants has become one of our key objectives. By using hydrofluorolefin (R-454C) as refrigerant, this dehumidifier makes a valuable contribution to protecting our climate.

The natural refrigerant hydrofluorolefin (R-454C) is an organic compound belonging to the group of hydrocarbons. Unlike synthetic refrigerants the environmentally friendly hydrofluorolefin (R-454C) comes with neither ozone depletion potential (ODP = 0) nor a noteworthy greenhouse effect (GWP = 146).

Additional bonus for the environment: Owing to its excellent thermodynamic properties, hydrofluorolefin (R-454C) is a particularly energy-efficient refrigerant thereby additionally reducing your energy costs. 

TTK 650 S – special equipment features

In spite of its compact dimensions the TTK 650 S is outstanding with a dehumidification performance of 100 l/24h for rooms sized up to 590 m² or 1470 m³. Owing to the rotary piston compressor, its carriage design of robust metal can be transported and stored in any position.
TTK 650 S – dimensions
A protective cap protects the operating switch from dust and spray water. The slotted hygrostat rotary switch offers protection against unintended changes to the setting of the switch position.
TTK 650 S – operating switch and filling level warning light
The integrated recessed handles make the transport and positioning of the TTK 650 S to every desired location even easier.
TTK 650 S – recessed handles
The external condensate drain that comes as a standard makes the TTK 650 S ideal for longer and unattended continuous drying applications.
TTK 650 S – external drain integrated as a standard
The TTK 650 S ensures automatically that the target value entry is kept constant. When this value is exceeded, the device switches off automatically and also switches on again automatically when the value falls below the target entry. The target value preselection is between 32 % and 100 %, depending on the air humidity value in the room which is to be reached.
TTK 650 S – automatic mode
The TTK 650 S comes with function for automatic defrosting. When the room temperature is below 11 °C, the evaporator would freeze during dehumidification. This is why the TTK 650 S carries out fully automatic self-defrosting, if required.
TTK 650 S – automatic defrosting
The TTK 650 S is provided with a memory function. In the case of an unexpected switch-off due to a power interruption, this function makes the device restart with the previously selected setting as soon as the power supply has been restored.
TTK 650 S – memory function
In the permanent mode, the TTK 650 S dehumidifies the room air in continuous operation. Therefore it is ideally suited for longer unattended dry keeping tasks and professional construction drying applications.
TTK 650 S – permanent mode
The commercial dehumidifier TTK 650 S, by its hygrostat-controlled automatic operation, provides for an optimum room climate, e.g. in storage halls. The target value can be adjusted via a rotary switch from a minimum value to the maximum value.
TTK 650 S – storage hall
Shells can be dried perfectly and easily in no time with the powerful and comfortable commercial dehumidifier TTK 650 S. This prevents major delays caused by necessary drying processes in the construction project, even at low temperatures.
TTK 650 S – construction shell
The TTK 650 S is also an excellent choice when it comes to its use for water damage restoration. The process of drying the spaces can be substantially accelerated in such cases of damage, as a consequence considerably reducing mould formation.
TTK 650 S – water damage restoration

A few practical benefits:

  • Development, design, production: 100 % Trotec
  • High dehumidification performance even at low temperatures
  • Robust plastic-coated metal housing
  • Stable carriage construction
  • Portable and easily stored anywhere thanks to its rotary compressor
  • Automatic hygrostat controlled dehumidification
  • High-quality hot gas automatic defrosting
  • MID-compliant dual counter for operating and kilowatt hours (optional)

Proper energy billing for existing equipment without meters?

You're using this or another electrical appliance without MID-compliant energy consumption meter of which you have to report the current consumption to insurance companies? Then the BX50 MID is the perfect solution. Just install it between the device and a fixed socket – done!

Fan assistance for construction drying

Fan assistance

Quicker construction drying by air circulation

The drying time can be reduced by half if construction dryers and fans are combined. In doing this, each dryer is supplemented with a fan, which significantly improves the drying performance and thus also the duration of the drying process.

The increased air circulation results in a quicker evaporation of the humidity, for the higher the flow rate at the material surface, the sooner will the drying process be completed.
The axial fans of the TTV series and TTV-S series are especially suitable to provide assistance with regard to the drying process.

External condensate pump

Accessory tip:

External condensate pump for continuous operation

This optionally available condensate pump is compatible with all TTK-S models from Trotec and is ideally suited for longer, unattended dry keeping applications. With a pump height of up to 5 metres the condensate can be pumped from the collection container of the construction dryer into a larger container or outside. This makes it possible to let the construction dryer run in continuous operation without a full collection container interrupting the dehumidification process.

Further information can be found here.

Technical data by comparison

All commercial dehumidifiers of the TTK-S series by direct comparison:

To find the commercial dehumidifier which exactly meets your requirements, please consult the concise overview of commercial dehumidifiers of the TTK-S series from Trotec, which we're providing to you here so that you can compare them directly to each other.

Models which you do not wish to include in your comparison can be easily dismissed with only one click.

Technical data by comparison


Luftentfeuchter TTK 650 S show in Trotec online shop

Technical data

Technical data
General information
  Article number
Dehumidification performance
  At 30 °C / 80 % RH [l/24h] 91
  Max. [l/24h] 100
Air flow rate
  Level Max. [m³/h] 925
Recommended room size dry keeping
Ambient conditions
  Min. temperature range [°C] 5
  Max. temperature range [°C] 32
  Min. humidity range [% RH] 50
  Max. humidity range [% RH] 90
Electrical values
  Mains connection 220 - 240 V, 50 Hz
  Nominal current consumption [A] 9.5
  Power input [kW] 2.1
  Recommended fusing [A] 16
Electric connection
  Connection plug CEE 7/7
  Cable length [m] 3
  Rotary piston compressor
  refrigerant R-454C
  Amount of refrigerant [g] 1,050
  GWP factor 146
  CO2 equivalent 0.15 t
  Pressure suction side [MPa] 0.6
  Pressure outlet side [MPa] 2.8
  Max. permissible pressure [Mpa] 3
Sound values
  Distance 1 m [dB(A)] 56
Functions and features
  Operating control lamp
  Auto restart function
  Connection for external condensate drain
  Memory function
  Fan rundown function
  Length (packaging excluded) [mm] 616
  Width (packaging excluded) [mm] 511
  Height (packaging excluded) [mm] 1,022
  (packaging excluded) [kg] 52
Equipment, features and functions
Automatic defrost system
  Hot gas
Automatic dehumidification
  Non-stop dehumidification
  Analogue hygrostat
  stages 1
Condensate tank monitoring
  Container available
  Overflow protection with automatic switch-off
  Filling level warning light to indicate a full water tank
Room air filter
  Readily accessible
Operating hours counter
  Operating hours counter
  Power meter
  Non-marking full-rubber wheels
  Stand bar
  Carry/transport handle(s)
  Carriage design
Condensate drain
  Hose connection possible
  Hose included in the scope of delivery
  Condensate pump
  Recommended hose size [mm] 15.875
Control panel
  Control knobs
Shelf life
Housing design
  Steel coated

 standard equipment

 optionally available

 not available



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