TnP 500: Discover the Importance of Electrical Appliance Testing and Tagging

By Steven Harrisson, April 10, 2019

Ask anyone if they want to purposefully expose their life at risk on a daily basis and most (adrenaline seekers are always in for a thrill) if not all are going to tell you no. Well, sadly that’s exactly what happens when we don’t maintain or carry out regular tests with the electrical appliances we’re surrounded by – we expose ourselves at risk.


This ought to be a cause for alarm because most of our homes are filled with appliances meant to simplify our lives, doing the labour for us like coffee makers, toasters, dishwashers, washing machines, dryers and irons, to name some. Other potential dangerous appliances are light fixtures, mobile phone and laptop chargers, water heaters, fans, air conditioners and vacuum cleaners.

Mind you, if you’re running a business, you have to beware appliances in the office and warehouses too; safety is never to be taken lightly. Luckily, we live in a technological era so there’s reliable testing equipment to count on for quick and easy check up, like the variety of TnP 500, T and P short for test and print.

Though the standard 500 is among the most popular ones, depending on which features come in handy for a specific job, there are other models also, like the TnP-500W known for its portability and as an all in one solution for high volume testing and tagging, printing out professional test labels on site.

Other useful and popular models of TnP 500 are the TnP-500WX ideal for appliances with operation greater than 20A and performing load testing, and TnP-500B that doesn’t require main source unless it’s for testing the leakage current.

Features they all have in common are durable casing, WinPAT software, convenient warranty, printing custom logo tags on spot as well as built-in memory to save results which you can then upload and download to and from PC. Most importantly, they are designed to carry out testing and printing that comply with the AS/NZS3760 standards.

As easy as they may be to use, it’s still mandatory by regulations that all the inspection, testing and tagging of the electrical equipment and devices is carried out by a person who’s competent in performing these tasks, like licensed electricians.

This is so because of the mentioned potential danger from the appliances, requiring a person with lots of experience in the testing, knowing how to determine the proper test for each device or equipment along with the needed frequency, and differentiating between earthed and double insulated equipment.