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Smart Limiter

Intelligent temperature limiter

The “Smart Limiter” electronic temperature limiter was developed for use with electrical heat trace heating systems in potentially explosive atmospheres for DIN rail mounting. The Smart Limiter is characterized by a high switching capacity - all-pole up to 30 A - combined with a compact design of 4 DU. The convenient operation and parameterization via Wi-Fi as well as the „smart“ switching behaviour are further features of the limiter. It only switches off when the set maximum temperature is reached, provided the temperature controller has not been deactivated beforehand and there is therefore a critical excess temperature. In practice, this means, for example, that a steam flush of the system can be carried out without resetting the limiter.

Technical Data

Applications

Freeze prevention
Temperature maintenance
Pipelines
Valves, pumps
Silos, vessels, tanks

Kraftwerke, Chemie und Petrochemie, Öl- und Gasindustrie, Pharmaindustrie, Kunststoffindustrie, Prozess- und Umweltanalytik

Technical Benefits

  • OLED display
  • high switching capacity
  • compact design
  • convenient operation via WLAN
  • two-pole switch-off
  • for operations with ELTF-PTEx sensors

Technical Data

Operating / control voltage 100...240 VAC, 50/60 Hz
Display OLED, 13x24 mm
Weight ca. 0.2 kg
Power consumption max. 8 W
Material 70 (4 TE) x 90 x 60 mm (BxHxT)
Mounting option Hutschienenmontage
Switching capacity 30 A
Switching point accuracy +- 1K
Set point range -20 °C bis +500 °C
Ambient temperature -20 °C bis +50 °C ( bis +55 °C bei 25 A ohmscher Last K1)

The eltherm designer

From now on, easily perform heat loss calculations for insulated and jacketed pipes and vessels yourself, or manage entire trace heating systems within your projects.

Start design
The eltherm designer

Downloads

Title
Format
Size
Language
Datasheet Smart Limiter
PDF
192 KB
English
Betriebsanleitung Smart Limiter (BU-144)
PDF
899 KB
Deutsch

We are here for you

Contact persons

Thomas Stuff
Thomas Stuff

+49 2736 / 4413-8155

tstuff@eltherm.com

eltherm GmbH

Ernst-Heinkel-Straße 6-10
57299 Burbach, Germany
Jack Shilling
Jack Shilling

+49 2736 / 4413-8162

jshilling@eltherm.com

eltherm GmbH

Ernst-Heinkel-Straße 6-10
57299 Burbach, Germany