Infrared Window Products


Preliminary analysis :

pIdentification of areas to control.

pDefinition of the locations and the number of H.VIR® windows, taking into account the field of vision and the possibilities of the camera used.

pMeasurement of the thickness of the sheets on which the portholes will be mounted. In the case where they are larger than 4 mm, 2 thread versions are available as options: 
• Reference L1 thread length 15 mm 
• Reference L2 thread length 20 mm
Preparation :

 From the drilling plan provided:

pMake an opening in the door of the cell according to a diameter defined for each porthole using a GREENLEE type punch, or by laser and jet of water according to plan provided.

pAffix self-adhesive flat gasket # 4 on the inside of panel # 7.

pMake sure Hood # 1 is securely screwed to Frame # 2.

pPlace mount # 2 on the front (be careful the flat seal # 3 must be in place on the mount).

pTighten the fixing ring no. 5 using the specific key that can be fitted to all torque wrenches no. 6 by screwing counterclockwise.

pThe tightening torque must be: 

H.VIR® 75: 50Nm or 5 Kg 
H.VIR® 85 & H.VIR® 85 Exr® type
 : 65 Nm or 6.5Kg 
H.VIR® 105 : 80 Nm or 8 Kg
 Note: this operation only requires about ten minutes per window.


The H.VIR® window is particularly suitable for the following applications:

  • High voltage protection cells (visualization of cable connectors, circuit breakers, fuses and fuse holder).
  • High-Low Voltage Transformers: Terminal Box …
  • Low voltage distribution (400V): general circuit breaker (distribution bar connection – connection and crimping of cables), low voltage starters, plug-in drawers …
  • Electric motors (medium and low voltage except ADF): terminal box, DC motor collectors, asynchronous motor bushings.

As a standard model the H.VIR® window meets the normal conditions of use of electrical cabinets and transformers which are:

  • Exposure temperatures between – 40 ° C + 70 ° C.
  • Maximum differential pressure of 1.2 bar.

It is designed for internal and external operation under standard environmental conditions. The hood must be screwed onto the frame outside inspection sequences.