Cable bushings PIWO

PIWO Ex bushings for hazardous areas

Multicore Insulating Flameproof Bushings PIWO are destined to provide wired connection of electric mining devices group I category M2 and industrial devices group II category 2 in gas/dust explosive atmospheres between flameproof enclosures or between flameproof part of enclosure and part of enclosure with another approved type of protection.

Wide range of configuration allows to precisely fit bushings to device and its enclosure. PIWO bushings can have either threaded or not threaded sleeves with wide range of diameters. Furthermore, depending on the application requirements, there is possibility of applying copper wires, fiber wires and variety of different kinds of connection sockets and terminal strips. The construction fulfills requirements of EN IEC 60079-0, EN 60079-1 standards and the highest quality ensures an adequate level of explosionproof safety, which has been confirmed by KDB 13ATEX0042X ATEX certificate. Thanks to the ATEX certification it is possible to use these bushings in Ex devices without need of recertification of whole set.

Properties

  • Designed to use in devices in zones 1 and 2 and mining industry
  • Available wide range of standard configuration and possibility of customization
  • Maximal rated voltage up to 3600VDC and 6000VAC for wires with cross section 1,5 ÷ 4 mm2 range
  • Maximal rated current up to 28A for wires with 4 mm2 cross section
  • Up to 20 fiber wires
  • Up to  47 copper wires
  • Possibility of finishing with connector or with terminal strip
  • Copper wires cross section from 0,5 mm2 to 4 mm2
  • Metric thread sleeve with range  1 ÷ 2mm or not threaded sleeve
  • Operating temperature range for copper wires -30˚C ÷ +120˚C
  • Operating temperature range for fiber wires 0˚C ÷ +60˚C
  • Possibility of use in Ex certified devices without need of recertification of whole set
Operating temperature
  • Copper wires bushings: -30 °C ÷ +120 °C
  • Fiber wires bushings: 0 °C ÷ +60 °C
Number of wires
  • Copper wires bushings: 1 ÷ 47
  • Fiber wires bushings: 1 ÷ 20
Copper wires cross sectionn 0,5 ÷ 4 mm2
Metric thread range
  • M16 ÷ M50;
  • pitch: 1÷2mm
Type marking PIWO-*1-*2-*3-*4
*1 – wire type (S: fiber, K: copper)
*2 – thread size
*3 – lnumber of wiresł
*4 – wire cross section

 

ATEX IECEx certifications

  • I M2 Ex db I Mb
  • II 2G Ex db IIC Gb
Download the catalog card

Application

  • Providing connection between flameproof enclosures (Ex d) and between flameproof enclosures and enclosures with another approved type of protection
  • Providing connection between enclosures equiped with intrinsicall safe devices (Ex i) and enclosures with other devices