Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window

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  • Fluke CV401 2A Ko
  • Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window

Key features

Installs and grounds in less than 5 minutes

Save time with quick and easy installation with the CV Series – 5 minutes or less.

  • One technician
  • One hole with standard Greenlee® punch
  • Panel door does not need to be removed
  • Grounds instantly to metal enclosure with patent-pending AutoGround™ process
  • Maintains panel arc test ratings up to 63kA when properly installed

Work more efficiently with Fluke ClirVu® CV401 95 mm (4 in) Infrared Windows

  • NFPA 70E processes significantly reduced due to less work permit requirements
  • Faster and more comfortable inspections because full PPE is often not required
  • Reduce the risk of arc-flash and electrocution, increase the safety of your personnel and reduce the time and cost of preventive maintenance
  • CV401 is Torture Tested™ to the highest arc blast test ratings IEEE C37.20.7: 63 kA Arc tested at KEMA, UL 50/50E/50V, UL1558, IEC60529-1: IP67, IEC 60068, NEMA 4/12, CSA C22.2 NO. 14-13:2012, and CE
  • Convenience of both quick turn or security keyed access

Product overview: Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window

A company's greatest investment is not the equipment that's behind the panel door; top priority is to offer the ultimate protection for the electricians, engineers and inspectors who risk their lives every day doing their jobs.

The ClirVu® coating - exclusive to Fluke infrared windows - seals the optic prior to assembly to protect against moisture degradation making it perfect for very hot and very cold environments.

Each Fluke infrared window is delivered with an identification plate attached for unique, on-site numbering for rapid location confirmation and faster repairs.

If you don't need a security key access option see the CV400 IR Window.

The CV Series of infrared windows are also available in 50 mm (2 in) and 75 mm (3 in) sizes.

Specifications: Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window

General Specifications
Size95 mm (4 in)
Voltage rangeAny
NEMA environment typeType 4/12 (indoor/outdoor)
ClirVu® opticYes
Operating temperature-40°C to +232°C (-40° F to +450°F) and +260°C (500°F) intermittent
Compatible with all Fluke camerasYes
Jam nut locking systemYes
Cover and fastener permanently attachedYes
Single-hole installYes
Hand turn and security key door latch optionsYes
Visual inspection and fusion capableYes
Short/Mid/Long-wave IR and UV capableYes
Ratings and Testing
Arc-tested (IEEE C37.20.7)63 kA for 30 cycles @ 60 Hz at KEMA
CSA C22.2 No.Yes
CSA type ratingType 4
IP ratingIP67 at TUV
Lloyds registerUp to 11 kV marine switchgear, indoor or outdoor (offshore only)
Vibration ratingIEC60068-2-6 at TUV
Humidity ratingIEC60068-2-3 at TUV
Actual mounting hole diameter required115.42 mm (4.544 in)
Greenlee® punch kit = punch/die742BB = 2984AV/2983AV
Recommended max panel thickness10 gage
Overall window height189.3 mm (7.45 in)
Overall window width147.1 mm (5.79 in)
Overall window thickness23.0 mm (0.90 in)
Door latchSecurity Key
Optic insert diameter95 mm (3.74 in)
Viewing aperture diameter87.63 mm (3.450 in)
Viewing aperture area6032 mm2 (9.35 in2)
Thickness4 mm (0.16 in)
WarrantyLifetime replacement against manufacturing defects

Models: Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window

Fluke CV401
Fluke CV401 ClirVu® 95 mm (4 in) Infrared Window
Buy it


  • 4 in (95 mm) IR Window
  • Security key door latch
  • Warranty statement 
  • Fluke IR Windows are complete, assembled and ready for installation
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