Fluke 075-CLKTO 3" (75mm) C-Range Indoor Infrared (IR) Window, Medium Voltage, with Kwik Twist Cover

Fluke 075-CLKTO Specifications: Optic data
Crystal insert diameter 75 mm (2.96 in)
Viewing aperture diameter 68 mm (2.7 in)
Viewing aperture area 3632 mm2 (6.36 sq in)
Thickness 2 mm (0.08 in)
CLIRVU coating Yes
Shortwave IR capable Yes
Midwave IR capable Yes
Longwave IR capable Yes
Ultraviolet (UV) capable Yes
Visual capable Yes
Fusion capable Yes
Fluke 075-CLKTO Specifications: Safety Ratings
Underwriters Laboratories (UL) recognized
UL50 environmental Type 1
UL746C Yes
UL94 Yes  - VO
KEMA (Arc-Testing)
ANSI C37.20.7 50 kA for 30 cycles @60 Hz
EEMACS 14-1 Type-B 40 kA for 30 cycles @60 Hz
ASTA (Arc-Testing)
IEC 62271 20 kA for 5 cycles @50 Hz
TUV
Cyclic humidity withstand
Vibration withstand
NEMKO
Resistance of insulating materials to 100°
Resistance of insulating material to ball pressure (Brinell)
Glow-wire test 650 °C
Fluke 075-CLKTO Specifications: General
Crystal insert size  50 mm (2 in) 
Maximum temperature Gaskets: 250°C (482°F)
Body: 659°C (1219°F)
Optic: 1400°C (2552°F)
Viewing Pane: 150°C (392 °F)
Gaskets Low smoke and fume (LSF) compliant silicone
IP rating IP65
NEMA rating Type 3/12 (UL and CSA Third Party Certified)
Vibration rating IEC60068-2-6
Humidity rating IEC60068-2-3
Pull-out strength Up to 630 kg (1388 lb)
Warranty Lifetime replacement against manufacturing defects

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