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Product selection guide: IR windows

Use our product selection guide to find the IR window that fits your needs best.
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Fluke CV301 2A KO
F CV200 01A KO
Fluke CV301 ClirVu® 75 mm (3 in) Infrared WindowFluke CV200 ClirVu® 50 mm (2 in) Infrared Window
Size76 mm (3 in)50 mm (2 in) 
Voltage rangeAnyAny 
NEMA environment typeType 4/12 (indoor/outdoor)Type 4/12 (indoor/outdoor) 
AutoGround™   
ClirVu® Optic   
Operating temperature-40 °C to +232 °C (-40 °F to +450 °F) and +260 °C (+500 °F) intermittent-40 °C to +232 °C (-40 °F to +450 °F) and +260 °C (+500 °F) intermittent 
Arc-tested (IEEE C27.20.7)66 kA for 30 cycles @ 60 Hz at KEMA67 kA for 30 cycles @ 60 Hz at KEMA 
UL 50/NEMA environmental ratingNEMA type 4/15NEMA type 4/16 
UL 1558   
CSA C22.2 No.   
CSA type ratingType 7Type 8 
IP ratingIP 67 at TUVIP 67 at TUV 
Lloyd's RegisterUp to 11 kV marine switchgear, indoor or outdoor (offshore only)Up to 11 kV marine switchgear, indoor or outdoor (offshore only) 
Vibration ratingIEC60068-2-6 at TUVIEC60068-2-6 at TUV 
Humidity rateIEC60068-2-3 at TUVIEC60068-2-3 at TUV 
Actual mounting hole diameter required89.89 mm (3.539 in)61.37 mm (2.416 in) 
Greenlee punch kit - punch/die739BB = 1431AV / 1432AV76BB = 441AV / 442AV 
Door latchSecurity keyHand turn 
Install time8 minutes or less9 minutes or less 
Optic insert diameter76 mm (2.96 in)50 mm (1.97 in) 
WarrantyLifetime replacement against manufacturing defectsLifetime replacement against manufacturing defects 
Welcome to Fluke's Chat GPT Assistant. As with other generative AI systems, this chatbot may occasionally generate incorrect information. For questions regarding the safe use of Fluke tools, please refer to your owners manual. You must comply with your employer’s safety standards and obtain necessary training before using Fluke tools or taking electrical measurements. To speak with a person, visit our Contact Us page.
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