Fluke CV301 ClirVu 75mm Locking Infrared Window

  • Quick install, high arc protection
  • Durable 75mm IR inspection window
  • AutoGround for instant earthing
  • Withstands 63kA arc blast test
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£339.00 (ex VAT)

£406.80 (inc VAT)

Earn 339 points

Usually ships In 1 to 2 weeks
  • Quick install, high arc protection
  • Durable 75mm IR inspection window
  • AutoGround for instant earthing
  • Withstands 63kA arc blast test
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£339.00 (ex VAT)

£406.80 (inc VAT)

Earn 339 points

Usually ships In 1 to 2 weeks
Product Question
Name
Name
Plain text only. HTML is not allowed.
 
Fluke CV301 ClirVu 75mm Locking Infrared Window

The Fluke CV301 ClirVu 75mm Locking Infrared Window enables safe and fast thermal inspections without opening energised panels. It is designed for use in demanding electrical environments where safety and reliability are critical. Each unit allows clear infrared imaging while protecting personnel from arc-flash hazards and exposure to energised components.

Built for Reliability

The ClirVu coating seals the optic before assembly to prevent moisture damage and maintain clarity over time. This makes the Fluke CV301 ClirVu ideal for very hot and extremely cold settings, maintaining optical quality in tough conditions. The patented AutoGround process ensures the window grounds instantly to the panel enclosure, removing the need for extra grounding steps and reducing installation time.

Performance and Safety

It has been tested to endure arc blasts up to 63kA for 30 cycles at 60 Hz, verified at KEMA laboratories. The IP67 and Type 4 ratings guarantee resistance to dust, moisture and harsh environmental factors. The stainless steel cover and security key latch offer strong protection for both indoor and outdoor applications, while supporting compliance with NFPA 70E and CSA standards.

The Fluke CV301 ClirVu 75mm Locking Infrared Window gives engineers a safer, faster and more efficient way to inspect equipment. It helps lower maintenance time, reduces PPE requirements and ensures accurate temperature readings through its high-transmission optic.

pdf

Reviews

There are no reviews yet.

Be the first to review “Fluke CV301 ClirVu 75mm Locking Infrared Window”
Fluke CV301 ClirVu 75mm Locking Infrared Window

The Fluke CV301 ClirVu 75mm Locking Infrared Window enables safe and fast thermal inspections without opening energised panels. It is designed for use in demanding electrical environments where safety and reliability are critical. Each unit allows clear infrared imaging while protecting personnel from arc-flash hazards and exposure to energised components.

Built for Reliability

The ClirVu coating seals the optic before assembly to prevent moisture damage and maintain clarity over time. This makes the Fluke CV301 ClirVu ideal for very hot and extremely cold settings, maintaining optical quality in tough conditions. The patented AutoGround process ensures the window grounds instantly to the panel enclosure, removing the need for extra grounding steps and reducing installation time.

Performance and Safety

It has been tested to endure arc blasts up to 63kA for 30 cycles at 60 Hz, verified at KEMA laboratories. The IP67 and Type 4 ratings guarantee resistance to dust, moisture and harsh environmental factors. The stainless steel cover and security key latch offer strong protection for both indoor and outdoor applications, while supporting compliance with NFPA 70E and CSA standards.

The Fluke CV301 ClirVu 75mm Locking Infrared Window gives engineers a safer, faster and more efficient way to inspect equipment. It helps lower maintenance time, reduces PPE requirements and ensures accurate temperature readings through its high-transmission optic.

Key Features
  • Installs in under five minutes with one technician
  • AutoGround process ensures instant grounding
  • Compatible with all Fluke infrared cameras
  • Single-hole installation using a standard Greenlee punch
  • Rated to withstand 63kA arc blasts at 60 Hz
  • Sealed ClirVu optic prevents moisture degradation
  • Operating range from -40°C to +232°C continuous, +260°C intermittent
  • IP67 and Type 4 rated for dust and water resistance
  • Security key latch for safe and quick access
  • Supports visual and infrared inspections in one step
  • Permanently attached cover and fasteners for added safety
  • Maintains panel ratings up to 63kA when correctly installed

 

Technical Specifications
Specification Detail
Product name Fluke CV301 ClirVu 75mm Locking Infrared Window
Manufacturer part code Fluke CV301
Size 75 mm (3 in)
Voltage range Any
NEMA environment type Type 4/12 (indoor/outdoor)
Grounding system AutoGround technology
Optic material ClirVu coated infrared optic
Operating temperature -40°C to +232°C continuous, +260°C intermittent
Arc test rating 63 kA for 30 cycles at 60 Hz (KEMA tested)
CSA type rating Type 4
IP rating IP67 (TÜV tested)
Lloyds register Approved for up to 11 kV marine switchgear (onshore and offshore)
Vibration rating IEC60068-2-6
Humidity rating IEC60068-2-3
Mounting hole diameter 89.89 mm (3.539 in)
Recommended panel thickness 10 gauge
Overall window height 141.5 mm (5.57 in)
Overall window width 111.5 mm (4.39 in)
Window thickness 16.2 mm (0.64 in)
Optic insert diameter 75 mm (2.96 in)
Viewing aperture diameter 67.95 mm (2.675 in)
Viewing aperture area 3626 mm² (5.62 in²)
Optic thickness 2 mm (0.08 in)
Door latch type Security key
Installation time Under 5 minutes
Jam nut locking system Yes
Compatible devices All Fluke thermal imaging cameras
Compliance NFPA 70E, IEEE C37.20.7, IEC60529-1, UL1558, CE certified
Warranty Manufacturer’s standard warranty applies
What’s Included
  • Fluke CV301 ClirVu 75mm Locking Infrared Window
  • Security key
  • Identification plate for location tracking
  • Installation guide

QUESTIONS

Related Products

You may also like…

  • Fluke CV400 ClirVu 95mm Infrared Window
     Usually ships In 1 to 2 weeks

    Fluke CV400 ClirVu 95mm Infrared Window

    £475.00 (ex VAT)
    £570.00 (inc VAT)
    • 95 mm IR window, arc-rated protection
    • AutoGround system for fast install
    • Operates -40°C to +232°C continuous
    • IP67 sealed, rugged marine certified
    More info
  • Fluke CV401 ClirVu 95mm Locking Infrared Window
     Usually ships In 1 to 2 weeks

    Fluke CV401 ClirVu 95mm Locking Infrared Window

    £465.00 (ex VAT)
    £558.00 (inc VAT)
    • 95 mm IR view with arc-rated safety
    • AutoGround metal bond for quick fit
    • IP67 unit for harsh site conditions
    • Single-hole install with 63 kA test
    More info
  • Fluke FLK-100-CLKT 4" C-Range IR Window
     Usually ships In 1 to 2 weeks

    Fluke FLK-100-CLKT 4″ C-Range IR Window

    £348.00 (ex VAT)
    £417.60 (inc VAT)
    • Tough IR window for high-arc switchgear
    • Clear, coated optic for stable imaging
    • Rated for harsh heat and vibration loads
    • Fast, safe checks with sealed access
    More info

Stock take notice: Orders must be placed before 10:00am on Wednesday 15th July 2026 for despatch before our stock take. Orders received after this time will be despatched from Monday 20th July 2026, when normal business operations commence. Thank you for your understanding.