FlexIR-Clear Series

A Clear Solution to an Everyday Problem

Overview Image


The FlexIR-Clear range of products is another innovative addition to the Custom Solutions from IRISS to ensure that your inspection windows meet your needs and applications. One of the most difficult things to overcome in infrared inspections of electrical systems is imaging through the clear polycarbonate safety guards that are typically installed in front of electrical connections and which completely block the transmission of infrared radiation. These guards have a very important function as they maintain the IP20 touch-safe requirement by ensuring that no one can accidentally touch the energized components when the panel cover is removed. The FlexIR-Clear range of products are a clear polycarbonate grill that is IP20 compliant and allows direct temperature measurement of energized components for infrared and visual inspections while ensuring the operators cannot come in contact with the energized components. They are available in custom sizes allowing inspections to be competed on those unique applications without the increased risk associated with removing covers or guards.


Durable and Rugged

Polymer based IR windows are far more able to resist the mechanical stresses applied to IR window that are fitted to electrical distribution equipment. It was IRISS that first came to market with industrial grade IR windows that could meet the mandatory impact and load testing requirements of UL, CSA, IEEE, IEC, CE testing that could never be passed by any crystal based IR window.

Proudly Made in the United States

IRISS manufactures and assembles all products at our global headquarters located in Bradenton, FL.

Unconditional Lifetime Warranty

The IRISS Unconditional lifetime warranty is unique in the IR industry as it not only applies not only to the workmanship of the window housing but also applies to the durability and stability of the optic in the proposed environment. No other manufacturer can offer this because crystal optics will fail over time, and are only able to at best offer a limited lifetime warranty for manufacturing defects.

Fast and Easy Installation

Following a few simple instructions, IRISS inspection windows can be quickly installed on switchgear and MCC panel covers, as well as transformers and other electrical equipment. Each window comes with an installation guide, as well as links to installation videos.


Part Number CVIR-4 CVIR-6 CVIR-12 CVIR-18 CVIR-24
General Specifications
Overall Height 15.24 cm (6 in) 21.8 cm (8.6 in) 20.6 cm (8.1 in) 21.8 cm (8.6 in) 21.8 cm (8.6 in)
Overall Width 15.24 cm (6 in) 16 cm (6.3 in) 30.5 cm (12.0 in) 45.7 cm (20.9 in) 61 cm (24.0 in)
IP/ NEMA Environment Rating IP10 / NEMA 1
Operating Temperature -40°C (-40°F) to 325°C (617°F)
Body Material Makrolon®
Voltage Range Any
Optic Specifications
Viewing Aperture Height 9.77 cm (3.85 in) 15 cm (5.9 in) 12.7 cm (5.0 in) 15 cm (5.9 in) 15 cm (5.9 in)
Viewing Aperture Width 9.68 cm (3.81 in) 9.1 cm (3.6 in) 23.6 cm (9.3 in) 39 cm (15.4 in) 53 cm (20.9 in)
Grill Material Makrolon® (IP22/ IP2x Standard)
Tensile Strength (Yield) 9,000 psi per ASTM D638 test method
Tensile Strength (Ultimate) 9,500 psi per ASTM D638 test method
Compressive Strength 12,500 psi per ASTM D695 test method
Flexural Strength 13,500 psi per ASTM D790 test method
Dielectric Constant (60 Hz) Makrolon® (IP22/ IP2x Standard)
UL 94 Flammability Rating V0 @ 0.060”; V0 5VA @ 0.118
Inspection Capabilities and Applications
Midwave IR and Longwave IR; Ultraviolet (UV); Visual Inspection; Medium/High Voltage Applications
Warranty Unconditional Lifetime Warranty
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