Explosion Proof Cable Glands


WISKA is an independent, family-owned company, founded 1919, located in Kaltenkirchen near Hamburg.


With over a hundred employees we develop and produce electrical installation products for an international clientele.


WISKA INDUSTRY EX comprises a complete range of high-quality cable glands for different types of explosion protection.


SPRINT ATEX cable glands are part of WISKA’s innovative ‘SPRINT System’. These IP 68 brass, stainless steel and plastic cable glands provide a first-class seal, and are extremely versatile to work with because they can be combined with special sealing inserts. All metal cable glands are also available for EMC requirements.


WISKA’s programme of EX adaptors makes installation more flexible, even in explosion endangered areas. Enlargement and reduction adaptors as well as adaptors for different types of threads make it possible to use one size of cable gland for different holes.



Brass SPRINT ATEX Cable gland,

standard and long connection thread

brass nickel-plated, IP 68, –40°C to 75°C, M12 to M63


Explosion protection:


II 2 G/D EEx e II IP 68


Certifi cate:


PTB 04 ATEX 1112X



SPRINT ATEX EMC Cable gland with earthing cones

acc. to DIN 89345

brass nickel-plated, IP 68, –40°C to 75°C, M12 to M63


Explosion protection:


II 2 G/D EEx e II IP 68


Certifi cate:


PTB 04 ATEX 1112X



SPRINT ATEX Cable gland with multiple sealing insert

brass nickel-plated, IP 68, –40°C to 75°C, M12 to M63


Explosion protection:


II 2 G/D EEx e II IP 68


Certifi cate:


PTB 04 ATEX 1112X



Economy EEx cable gland acc. to DIN 89280, equipment Z

(EMC-armoured cable) or W (non armoured cable)

brass, IP 54/with O-ring IP 56, –40°C to 100°C, M18 to M32,


also available in nickel-plated and chromium-plated


Explosion protection:


II 2 G EEx e II


Certifi cate:


PTB 03 ATEX 1156 X



Ex e Cable glands

Ex d Cable glands

Since 2003 WISKA’s ‘Quality Management System


for manufacturing products for explosion dangered


areas acc. to ATEX’ is certifi ed by ‘Physikalisch-Technische-


Bundesanstalt’ Braunschweig.




Roxtec approved for Ex e and Ex TD

The Roxtec Ex cable sealing system is certified according to the ATEX directive and the IECEx, International Certification Scheme, for use in areas where explosive atmospheres are likely to occur. Our Ex e products are designed to prevent ignition of explosive atmospheres.



Typical applications are Ex e and/or Ex tD classified electrical enclosures, such as transformers, motors, generators and junction boxes. The protection Ex e means increased safety, and the protection EX tD means protection by enclosure for explosive dust atmosphere. Some of the potential industries that are likely to be affected by the ATEX directive include:

  • Petro-chemical and chemical industries

  • Mills, concrete plants Spray booth plants

  • OEM producers intending to supply to areas where the ATEX product directive applies



Reduction of risk with Roxtec

Source of ignition flammable material oxygen, fire, sparks or hot surfaces usually oxygen from the air or within another source flammable gas, liquids, vapor or dust In all situations where there may be an explosive atmosphere, the following steps should be taken to minimize the risk of explosion:

  • Elimination of the explosive atmosphere around the source of ignition.
  • Elimination of the source of ignition.
  • Substitute with a non-flammable substance.
  • Lowering the process temperature.

In practice, however, it is very difficult to ensure that an explosive atmosphere will never occur. In these cases the ATEX product directive provides necessary protective measures. An explosion is a sudden chemical reaction of a flammable material with oxygen. In order for an explosion to occur, three conditions must be fulfilled:


1: Flammable material
2: Oxygen
3: Ignition source

An explosive atmosphere is defined as a mixture of air and a flammable substance in the form of gases, vapors, mists, dusts or fibers, in which, after ignition, combustion spreads throughout the entire unconsumed mixture. Potential sources of ignition include hot surfaces, electrical sparks, open flames and mechanical friction.