Qualitrol CON-159 Optical Tank Wall Feedthrough


Provides leak-free, long term connection between the inside fiber probe  (CAB-699) and outside extension cable (CAB-700) through transformer tank walls.  Designed to mate with other Qualitrol direct winding transformer accessories.


  • Glass-to-metal bonding technique insures no leaking between feedthrough connector and inside of transformer tank
  • Glass-to-metal bonding eliminates need for epoxy bonding or O-rings, which require maintenance and tend to fail
  • Hundreds have been installed over time with not even one reported leak
  • Made standard with 1/4 inch NPT male bulkhead, 18 ANSI threads per inch
  • Enables probe installation without carrying bulky mechanical weight at probe end
  • Reduces chances of probe breakage during installation
  • ST type connectors resist failure due to vibration
  • Designed specifically for oil filled or dry-type transformers; can be mounted on any part or location on transformer
  • Survives full vacuum or pressure (up to 200 psi)

Group Created with Sketch. Applications

For passing fiber optic signal through the tank wall plate (PLT-202 or PLT-201) or enclosure of oil-filled and dry type power transformers.
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