Choosing the right devices for final circuit protection can be a confusing task: modern MCBs, RCCBs and RCBOs are available in a bewildering array of types and sizes. To help resolve this confusion, David Pitt of Eaton’s Electrical Sector provides some useful guidance.
EntelliGuard™G Power Circuit Breakers line of Air Circuit Breakers that have evolved from the previous M-PACT & ME07 types to offer a truly global product platform meeting IEC, ANSI and UL standards available from 400 to 6400A in three basic envelopes with fault interruption ratings of up to 150kA. The design offers a unique combination of High Fault current withstand ratings, fast fault interruption times and selectivity.
Eaton is pleased to announce that its seminar entitled Understanding circuit protection selectivity and back up protection has been approved by the CPD Certification Service as meeting the standards required for CPD training courses.
![<p><a type="image" data-mediabox="caption[Phoenix Contact selective power]" class="jcepopup" target="_blank" title="Phoenix Contact selective power" href="images/stories/News/2012/may/pcselectivepowerlarge.jpg"><img style="margin-right: 6px; margin-bottom: 6px; float: left;" title="Phoenix Contact selective power" alt="Phoenix Contact selective power" src="images/stories/News/2012/may/pcselectivepower.jpg" height="137" width="150" /></a>The new electronic and thermo-magnetic circuit breakers from Phoenix Contact offer all of the system benefits that are important for quick and easy installation. They reliably protect devices from surges and short circuits, even when long cables are used.</p> <hr id="system-readmore" />](images/stories/2012/may/pcselectivepowerlarge.jpg "Phoenix Contact selective power")
The new electronic and thermo-magnetic circuit breakers from Phoenix Contact offer all of the system benefits that are important for quick and easy installation. They reliably protect devices from surges and short circuits, even when long cables are used.
Energy efficiency is an increasingly important goal in the planning and operation of systems. Intelligent control concepts and high availability of electrical systems are also becoming more and more important.
Smaller, lighter and with a higher output power than any other comparable three-phase instrument, Megger’s new SMRT 36 smart protective relay test set is ideally suited not only for testing today’s installations and legacy plant, but also for meeting the future challenges associated with testing the smart grid.
These modular devices are contact safe for the back of the hand. The modern functional design and the high grade surface finish of the plastic components are indicative of the high quality standard of this range of miniature circuit breakers.
The VAL-CP-MCB arrester, a combination of arrester backup fuse function and type 2 surge voltage arrester, is the only real choice when it comes to backup fuses for surge voltage protection.
Choosing the right devices for final circuit protection can be a confusing task: modern MCBs, RCCBs and RCBOs are available in a bewildering array of types and sizes. To help resolve this confusion, David Pitt of Eaton’s Electrical Sector provides some useful guidance.