These breakers come in two versions — one with magnetic trip element for short-circuit protection and the other with thermal and magnetic trip elements for overload and short-circuit protection. They can be used by themselves as manual motor controllers, and they also work well with Series 300 contactors in group motor installations. An ON/OFF manual operator makes it easy to isolate motor circuits without disconnecting all of a control panel's circuits. They have visual trip indicators for easy spotting of tripped circuits, and a test function for verifying device performance and proper control circuit operation. They have a modular design and come with accessories such as auxiliary contacts, shunt and undervoltage release modules, and wiring accessories. They come in universal ratings and markings: A, kW and HP ratings, plus applicable third-party certification markings.
A simple new chemical method for repairing and recycling notoriously difficult carbon fiber composites has been developed by the Fraunhofer Institute for Applied Polymer Research. An entire component can be completely recycled, including reclaiming its expensive carbon fibers for reuse.
In today’s connected world we are seeing the beginning of connected homes, smart grids, self-driving automobiles, drones, and many other amazing devices. Out of all the soon-to-be connected devices, which device poses the greatest dangerous to its users and society?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.