DESCRIPTION:

The FLIR IRW-3C Infrared Window is a permanently installed inspection window designed to provide safe access for thermal imaging inspections of energised electrical equipment without removing panel covers or opening enclosures. The window creates a protective barrier between personnel and live electrical systems while allowing thermal cameras to capture accurate radiometric thermal images.

Featuring a broadband calcium fluoride crystal optic, the IRW-3C transmits shortwave, midwave, and longwave infrared energy while also allowing visible light transmission for improved inspection visibility. This enables compatibility with virtually all FLIR thermal imaging cameras and supports efficient electrical maintenance programmes.

The window incorporates FLIR's PIRma-Lock™ mounting technology, which securely locks the assembly in place without requiring additional retaining screws. The anodised aluminium frame provides corrosion resistance and long-term durability in industrial and utility environments.

The IRW-3C is commonly installed on switchgear, motor control centres, distribution panels, transformers, substations, and electrical cabinets to support predictive maintenance programmes, improve inspection efficiency, and reduce arc flash risks during routine thermographic surveys.

Technical Specifications

• SKU: 19251-100
• Model: IRW-3C
• Window size: 3 inch
• Overall diameter: 99 mm
• Viewing aperture diameter: 69 mm
• Optic material: Calcium fluoride crystal
• Frame material: Anodised aluminium
• NEMA rating: Type 4/12
• IP rating: IP67
• Maximum operating temperature: 260°C
• Broadband IR transmission
• Indoor and outdoor installation
• Compatible with all FLIR thermal cameras
• PIRma-Lock™ mounting system
• Required panel cut-out: 88.9 mm (3.5 inch)

Key Features

• 3-inch infrared inspection window
• Broadband infrared transmission
• Arc flash risk reduction
• PIRma-Lock™ installation system
• Anodised aluminium construction
• Compatible with all FLIR thermal cameras
• Suitable for switchgear inspections
• Suitable for motor control centres
• Suitable for electrical distribution systems
• Indoor and outdoor use
• Supports predictive maintenance programmes
• Maintains enclosure integrity
• Enables inspections without opening panels
• Utility and industrial grade construction