Safety Ratings Decoded

The Safety Rating is comprised of 2 parts: the Category Code and the Voltage Rating. The Category Code is determined by the maximum transient voltage the meter can withstand. The Voltage Rating is the maximum working voltage of the circuit that the meter can be connected to.

The Meter with CATIV 600V Safety Rating is designed for use with devices connected to raw voltage distribution lines and/or located outside (Pole Transformers, Service Drops, Overhead/Underground lines etc.). Max. voltage rating of these devices shouldn't exceed 600V.

The Meter with CATII 1000V Safety Rating is designed for use with single-phase receptacle connected loads (Office Equipment, Household appliances etc.). Max. voltage rating of these devices shouldn't exceed 1000V.

The Meter with CATIII 600V Safety Rating is designed for use with fixed electrical devices located inside the building and protected by fuse box circuitry (AC, Heaters, Motors etc.). Max. voltage rating of these devices shouldn't exceed 600V.

The Meter with CATIII 1000V Safety Rating is designed for use with fixed electrical devices located inside the building and protected by fuse box circuitry (AC, Heaters, Motors etc.) Max. voltage rating of these devices shouldn't exceed 1000V.

Questions? Let us know. sales@oemheaters.com, or phone: 866-685-4443