LOOP Umwälzthermostate
The compact circulation thermostat for external applications from 4 to 80 °C

The compact, light circulation thermostat with Peltier technology for external applications from 4 to 80 °C

Extremely versatile, flexible thermoelectric circulation thermostat. The LAUDA LOOP circulation thermostat wins people over with a constant temperature between 4 and 80°C.

Its compact construction and low weight, as well as its wide voltage input range from 100 to 240 volts, mean that it can be used flexibly and spontaneously. Application is even easier thanks to plug and play with quick-fit coupling.

The intuitive three-button softkey operation and simple menu navigation in five available languages via the well-lit, high-contrast OLED display make using the device a breeze.


Benefits and added value

  • RS 232 interface for system integration into processes as standard equipment
  • Pump connections with quick-fit couplings for easy consumer changes
  • Can be operated with non-flammable liquids (water, water/glycol)
  • Cooling technology free of coolant ensures silent, low-vibration operation

Working range

The L 100 and L 250 air-cooled device types achieve a cooling capacity of 120 and 250 watt. The devices are primarily for use at constant temperatures with low power requirements. Both device types are especially energy-efficient and silent in partial-load operation.

Min. working temperature

4 °C

Max. working temperature

80 °C

Temperature stability

0.1 ± K

Product lines

Select up to 4 technical parameters that you want to display in the table

Product Min. working temp Max. working temp Heater power max. Cooling output at 20 °C 50 Hz Compare product
LOOP L 100 4 °C 80 °C 0.2 kW 0.12 kW Details
LOOP L 250 4 °C 80 °C 0.4 kW 0.25 kW Details

Device dimensions

261 x 368 x 312 mm

LOOP L 250

175 x 301 x 266 mm

LOOP L 100


Downloads - general product data

Please select which documents you would like to see in which language:

Available documents
Available languages
Device Device category Document type Language Format File size

Chapter Circulation and process thermostats
Overall brochure

Circulation thermostats Brochure
PDF 4,76 MB Download document


Circulation thermostats Operating instructions
PDF 3,52 MB Download document


Do you need additional information or do you have questions?

International Area Sales

+49 9343 503-555

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Applications and industry examples for LAUDA thermostats

Research & development labs

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