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All about electronics and circuit design

Circuit breaker teardown

Here is teardown of 10 A DIN rail mounted miniature circuit breaker (Biltema brand) What you see when you open the case Turn around – circuit open/off/tripped Device reseted to “on” position On the left side of mechanism there is bimetallic overcurrent triggering mechanism – load current goes through bimetallic strip and heats it.  On

Linux antivirus and anti malware: 8 top tools | CSO Online

https://www.csoonline.com/article/3238884/linux/linux-antivirus-and-anti-malware-8-top-tools.html  By most estimates, more than 50 percent of web servers on the internet are running some version of Linux or a related *nix. That should be enough to drive home how critical it is to the ongoing success of the Information Age that you analyze, identify, and eradicate malware on or passing through your

Virtual security

New IT term of the day: Virtual security: Manufacturers claim their products are secure. In reality they are not. Related post:  http://www.epanorama.net/newepa/2017/12/01/were-hitting-rock-bottom-in-cyber-lets-do-something-techcrunch/

Suomi Finland 100 years

http://suomifinland100.fi/info/?lang=en Finland became an independent state on 6 December 1917. The newly born state was willed into being by the Finns after a long struggle. In spite of hard times, the Finnish people have for almost a hundred years engaged in the building of their country and making decisions together.   http://suomifinland100.fi/news/world-congratulates-100-year-old-finland-lighting-blue-white/?lang=en

Entering the Quantum Era—How Firefox got fast again and where it’s going to get faster

https://hacks.mozilla.org/2017/11/entering-the-quantum-era-how-firefox-got-fast-again-and-where-its-going-to-get-faster/ Over the past seven months, Mozilla developers have been rapidly replacing major parts of the engine, introducing Rust and parts of Servo to Firefox. Plus, thety have worked on performance issues, both obvious and non-obvious. This newly released Firefox is called Project Quantum. This posting goes through the biggest changes to Firefox browser.

Circuit breakers for mains panel

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. In small mains and low voltage circuit breakers, fault current is usually done