![](https://iriss.com/wp-content/uploads/2023/10/VPT-75.png)
VPT Series
First and Only Round Transparent Polymer IR Window
An evolutionary step in infrared (IR) windows, the VPT Series utilizes our exclusive Poly-View System™ technology to allow the use of any thermography camera to monitor energized electrical equipment. The world’s only clear polymer IR window optic enables visual inspections, traditional IR inspections utilizing cameras across the entire IR spectrum and allows for UV inspections to be performed with a corona camera. The VPT Series IR windows are industrial grade, with a patented reinforced grill that exceeds high voltage switchgear viewing pane standards.
Arc Safety Tested
Successfully tested to the IEC 62271-200 standard for arc containment on metal enclosed switchgear assemblies to help protect workers from injury/fatality.
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.
UL Listed
Having passed rigorous standards and testing, our inspection windows are UL Listed (E491496). This demonstrates our dedication to continued safety and security in the ever-changing world of electrical power.
![](https://iriss.com/wp-content/uploads/2024/01/vpt-inuse.jpg)
Features
![Section Image](https://iriss.com/wp-content/uploads/2024/01/IRISS_0021_Durable-and-Rugged-Icon.png)
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.
![Section Image](https://iriss.com/wp-content/uploads/2024/01/IRISS_0012_Lifetime-Warranty-Icon.png)
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.
![Section Image](https://iriss.com/wp-content/uploads/2024/01/IRISS_0018_Fast-and-Easy-Instalation-Icon.png)
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.
![Section Image](https://iriss.com/wp-content/uploads/2024/01/IRISS_0019_Enviromentaly-Sealed-Icon.png)
Environmentally Sealed Design
The VPT Series of products are constructed from switchgear grade Nylon plastic with an aluminum cover and stainless-steel mounting screws. Seamless custom gaskets ensure the NEMA 6 / IP67 ingress protection rating is maintained.
Specifications
Model | VPT-50 | VPT-75 | VPT-100 | ||
---|---|---|---|---|---|
General Specifications | |||||
Overall Dimensions | 9.1 cm (3.6 in) Ø | 12.1 cm (4.8 in) Ø | 15.1 cm (5.95 in) Ø | ||
Overall Thickness | 2.6 cm (1.0 in) | 2.6 cm (1.0 in) | 2.6 cm (1.0 in) | ||
IP/ NEMA Environment Rating | IP65 / NEMA 4 | ||||
Operating Temperature | -40°C (-40°F) to 273°C (523°F) | ||||
Body Material | UL 94 5VA Nylon (switchgear-grade plastic); -40°C (-40°F)to 273°C (523°F); aluminum cover | ||||
Gasket Material | UL 94 5VA TPE; -40°C (-40°F) to 273°C (523°F) | ||||
Hardware Material | 316 Stainless Steel | ||||
Voltage Range | Any | ||||
Automatically Grounded | Yes | ||||
Optic Specifications | |||||
Viewing Aperture Dimensions | 5.1 cm (2.0 in) Ø | 7.6 cm (3.0 in) Ø | 10.2 cm (4.0 in) Ø | ||
Optic Material | Poly-View™ 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) | ||||
Inspection Capabilities and Applications | Midwave IR and Longwave IR; Ultraviolet (UV); Visual Inspection; Medium/High Voltage Applications | ||||
Certifications | |||||
Certifications | UL Listed (E491496) | ||||
Certifications | Certified by UL (USA) & cUL (Canada) to the following standards: 50V, 50E, 756C: Impact and Flammability, 746C & 746A-2012, 1558: Impact and Load Resistance, 508A: ANSI 508A | ||||
Certifications | CSA C22.2 No. 14-13, C22.2 No. 14-10, C22.2 No. 94-M91, C22.2 No.94.1-07, C22.2 No. 94.2-07 | ||||
Certifications | Lloyds of London Type Approval | ||||
Certifications | American Bureau of Shipping (ABS) | ||||
Certifications | DNV (Det Norske Veritas) P261.1E Maritime, Vessel and Offshore Applications | ||||
Certifications | IEEE C37 20.7 Type 2B, C37 20.2.a.3.6: Impact and Load | ||||
Certifications | IEC 62271-200, 60262271-200,60298 Appendix A, 60068-2-6:2007, 60068-2-3, 60068-2-78:2012 | ||||
Other | |||||
Warranty | Unconditional Lifetime Warranty |
Product Resources
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