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Thermo-Electra LEX55 Ex ec certified RTD sensor for zone 2 and 22
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Thermo-Electra LEX55 Ex ec certified RTD sensor for zone 2 and 22

Thermo-Electra LEX55 Ex ec certified RTD sensor for zone 2 and 22

Product Code: LEX 55

Manufacturer: Thermo-Electra


Thermo-Electra manufactures ATEX and IECEx-certified RTD sensors for hazardous areas. Both single and multipoint for zone 0, 1, 2 and 21, 22 with Exi, Exe, Exd, Ext, Exce (Exna) approvals. Our precision Pt100 and Pt1000 wire-wound detectors are made to conform EN6071 standards. Ceramic or glass encapsulated and thin film detectors are used for our resistance thermometers. Next to that, a complete range of sensors with standard “DIN” constructions are developed with an interchangeable insert which allows for easy replacement and can be equipped with a built-in two-wire 4-20mA transmitter. Also, able to be fitted with an integral head mount transmitter.

ATEX execution II 3 G Ex ec IIC T6…T1 Gc
ATEX certificate DEKRA 18ATEX0024 X
IECEx execution Ex ec IIC T6…T1 Gc
IECEx certificate IECEX DEK 17.0046X
Suitable for zone 2 and 22
Ingress protection IP65 / IEC529
Ambient temp. range -45°C…+80°C, this can be limited depending on the materials applied such as cables, connection heads, junction boxes and transmitters.
Construction Mineral insulated (MgO)
Material SS316 standard, other materials possible
Diameter Customer to specify (0.25-12.7mm)
Length Customer to specify
Execution Single or Duplex Pt100
Connection 3-wire system standard, 4-wire system optional
Accuracy According IEC 60751 Cl. B, A or AA
Measuring range -20°C…+400°C standard, -220°C…+600°C optional
Length 45mm
Diameter To suit cable diameter
Insulation PVC, PUR, Silicon or PTFE.Customer to specify
Cable length Customer to specify
Options (Stainless)Steel wire braiding, screen and/or earth-/drainwire
The LEX55 is the replacement for the LEX45 Ex nA
This datasheet is purely indicative, build-up of model code may vary from this datasheet
Datasheet Download

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