There is no such thing as a standard IR inspection so why should there only be a standard IR Window? IRISS is the only IR window manufacturer with solutions for unique applications. The patented IRISS reinforced optic is flexible and can be manufactured in an infinite number of shapes and sizes ensuring that the FlexIR Custom IR window meets your needs and applications.

Any Camera - Any Task

The exclusive industrial-grade, reinforced polymer optic allows any thermographic camera to monitor completely undisturbed assets inside electrical equipment. The IRISS Polymer optics work with all ranges of Infrared, Ultraviolet and Visual Inspection Cameras.

Tested and Certified to The Highest Industry Standards

IRISS IR windows are the most certified windows in the industry with IEEE (impact & load), UL, cUL, Lloyds, CSA 22.2 14-13 for industrial control equipment. Our marine certifications are Lloyds, DNV and ABS (American Bureau of Shipping) credentials. IRISS IR windows are also arc tested to IEC 62271-200 Arc Flash Spec test 1.1 Second Duration, IEC 60262271-200: 63kA, IEC 60298 Appendix: 63kA, IEEE C37.20.7 Type 2B: 63kA,

E Sentry Connect Asset Management

The E Sentry Connect ™ is our next generation intuitive asset information tagging system. The E Sentry Connect system utilizes Near Field Communication (NFC) contactless Smart Card technology that allows smart phone devices with NFC to easily access critical data relating to the equipment being inspected and save up-to-date inspection data directly to the assets E Sentry Connect tag via a free App from IRISS.

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.

Protected by our 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


Model CAP-CT-4 CAP-CT-6 CAP-CT-12 CAP-CT-18 CAP-CT-24
General Specifications
NEMA Enviroment Type IP65 / NEMA 4
Voltage Range Any
Operating Temperature -40°C (-40°F) to 325°C (617°F)
Body and Cover Material Powder Coated 5052 Aluminum
Hardware 316 Stainless Steel
Gaskets UL 94 5VA TPE; -40°C (-40°F) to 273°C (523°F)
Dimension and Optic Specifications
Optic Material UL 746 compliant, visual, UV and IR transmissive polymer; -40°C (-40°F) to 325°C (617°F)
Optic Reinforcing Grill Material Aluminum Reinforcing Grill (IP22/ IP2x Standard)
Viewing Aperture Dimensions L= 9.68 cm (3.81 in)
H= 9.77 cm (3.85 in)
L= 9.1 cm (3.6 in)
H= 15 cm (5.9 in)
L= 23.6 cm (9.3 in)
H= 12.7 cm (5.0 in)
L= 39 cm (15.4 in)
H= 15 cm (5.9 in)
L= 53 cm (20.9 in)
H= 15 cm (5.9 in)
Overall Dimensions L= 15.24 cm (6 in)
H= 15.24 cm (6 in)
L= 16 cm (6.3 in)
H= 21.8 cm (8.6 in)
L= 30.5 cm (12.0 in)
H= 20.6 cm (8.1 in)
L= 45.7 cm (20.9 in)
H= 21.8 cm (8.6 in)
L= 61 cm (24.0 in)
H= 21.8 cm (8.6 in)
Inspection Capabilities and Applications
Midwave IR Yes
Longwave IR Yes
Ultraviolet (UV) Yes
Visual Inspection Yes
Medium/High Voltage Applications Yes
Ratings and Testing
UL 50V & UL 50E Standard for Infrared Viewports & the environmental ratings , which apply to enclosures.
UL 746C & UL 746A-2012 Impact and flame resistance standards for polymeric components.
UL 1558 Impact and load resistance for low voltage, metal enclosed assemblies.
UL 508A/ ANSI 508A Industrial Control Panel Standards.
CSA C22.2 No. 14-13 CSA Standard for Industrial Control Equipment
CSA C22.2 No. 14-10 CSA Standard for Low Voltage Distribution and Control Equipment
CSA C22.2 No. 94-M91 This Standard applies to special purpose enclosures for electrical equipment intended to be installed
CSA C22.2 No. 94.1-07 This Standard applies to special purpose enclosures for electrical equipment intended to be installed and used in non-hazardous locations.
CSA C22.2 No. 94.2-07 Standard applies to Enclosures for Electrical Equipment, Environmental Considerations.
IEEE C37.20.7 Type 2B Defines switchgear arc resistance from the front, sides and rear. Type B specifies arc resistance is maintained, even when opening designated, low voltage equipment.
IEEE C37 20.2.a.3.6 IR windows mounted in medium and high voltage, metal clad and station-type gear are required to withstand impact and load from all sides without cracking, shattering or dislodging.
IEC 62271-200 Specification equirements for pre-fabricated metal enclosed switchgear and control gear above 1 kV and through 52 kV. Enclosures may include fixed and removeable components and have various insulating properties.
IEC 60262271-200 Arc containment tested; Arc Flash Spectest: 1.1 sec duration at 63kA.
IEC 60068-2-6:2007 Environmental testing- Vibration.
IEC 60068-2-3 Environmental testing- Damp heat, steady state.
IEC 60068-2-78:2012 Environmental testing- Extreme humidity withstand.
American Bureau of Shipping (ABS) A classification society, with a mission to promote the security of life, property and the environment through desin verifications standards for marine related operations.
DNV P261.1E Maritime, Vessel & Offshore A global quality assurance and risk management company that provides classifications and design validations to products used in the maritime, vessel and offshore industries.
Lloyds of London Type Approval LR provides independent approval certificates, validating a product’s confirmity within specific standards and specifications. It also validates quality production by design reviews, site audits and type testing.
Warranty Unconditional Lifetime Warranty

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