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CAT Rating System Overview

CAT Rating System Overview

For electrical measurement products, a CAT rating indicates the meter’s input circuitry has been designed to withstand voltage transients commonly found in one of three electrical environments without harming the user. If, for instance, you need to make measurements in a 480 V electrical panel, you’ll need a meter rated CAT III-600 V or CAT III-1000 V. The test probes you use with the meter should have an equal or greater CAT rating. The higher the short-circuit fault current available, the higher the category.

Watch this video for more information.

For more information on Electrical Safety, see our online course available at the Fluke eLearning Center. 

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©2019 Fluke Corporation. Specifications subject to change without notice. 6007225

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©1995 - 2019 Fluke Corporation
    • Products
      • Accessories
        • See all
      • Building infrastructure
        • HVAC tools
        • Indoor air quality testing
        • Laser distance meters
        • Laser levels
      • Calibration tools
        • Fluke Calibration
        • mA loop calibrators
        • Multifunction calibrators
        • Pressure calibrators
        • Temperature calibrators
      • Electrical testing
        • Basic testers
        • Battery analyzers
        • Clamp meters
        • Digital multimeters
        • Earth ground
        • Installation testers
        • Insulation testers
        • Portable oscilloscopes
        • Power and energy loggers
        • Power quality analyzers
      • Fluke software
        • eMaint CMMS
        • Fluke Calibration software
        • Fluke SmartView
      • Industrial imaging
        • See all
      • Intrinsically safe
        • See all
      • Mechanical maintenance
        • Laser alignment
        • Vibration analysis
      • Temperature measurement
        • Contact thermometers
        • IR thermometers
      • Thermal imaging
        • Infrared cameras and gas detectors
        • IR windows
        • Visual IR thermometers
      • Awards
      • New Fluke products
      • Catalogs
    • Learn
      • Best practices
        • Custody transfer
        • Electrical inspection
        • Equipment and production line testing
        • Fluid systems
        • Measurement basics
        • Motors and drives
        • Pressure calibration
        • Preventive maintenance
        • Safety
        • Temperature calibration
        • Test tools basics
        • Thermal imaging
      • Blog
      • Fluke education partnership program
      • Library
      • Online courses
      • Webinars
    • Support
      • About us
        • Careers
        • Companies
        • Contact us
        • Corporate profile
        • Directions
        • Integrity
      • Calibration Services
      • Manuals
      • Press releases
      • Product registration
      • Repair
      • Return materials authorization
      • Safety notices
      • Service center locations
      • Software downloads
      • Warranties
    • Where to buy
      • Promotions and contests