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4KTC Motors for hazardous areas - EEx d and EEx de 

Explosion-protected electric motors are used in industrial plants with a potentiall explosive atmosphere containing inflamable fumes (i.e. chemical industry, oil refineries).

These are three-phase asynchronous electric motors with shot-circuit rotor, according to the CENELEC EN 50014, EN 50018, EN 50019 (IEC 79-0, IEC 79-1).

  • Enclosure EEx d
  • Enclosure EEx de

Bartec Varnost

Main specifications:


All 4KTC motors are manufactured in accordance with IEC 34-1/9.

The bearings are maintenance free lubricated with lithium-based grease.

Motors are fitted with V-seals.

Mounting is availiable in B3, B5, B14S, B14L B35, B34S, B34L.


Frame sizes:

IEC size 63-250

Output range:


Protection class:

IP55, according to IEC 34-5

Insulation class:


Temperature rise:

Class B


TEFC, according to IEC 34-6

Surface painting:

Colour RAL 5010, General industrial, to IEC 721-2-1


Deep groove ball bearings, NSK


1000m above sea level

Ambient temp range:

-35̊C to 40̊C



Voltage ranges:


·220-240V / 380-420V, 50Hz (P = 100%)

·380-420V / 660-720V, 50Hz (P = 100%)


·240-265V / 420-460V, 60Hz (P = 100%)

·420-460V / 720-800V, 60Hz (P = 100%)


·265-290V / 460-500V, 60Hz (P = 120%)

·460-500V / 790-870V, 60Hz (P = 120%)

Dimension Data

4KTC Motor dimensions


Technical Data

4KTC EExd(e) 2 pole technical data



4KTC EExd(e) 4 pole technical data



4KTC EExd(e) 6 pole technical data


Additional information

4KTC Motor Catalogue


We make all efforts to better our products. Versions, technical data and figures could be changed therefore. They are not binding before written confirmation.