in our products we make extensive use of breakers combined with the on-off switch
they are exclusively magnetic type thermal breakers work by temperature effects which arise from the heating effect of the current. There is an unavoidable time factor involved when the current must first heat something. magnetic breakers are current sensitive directly, the current flows thru the solenoid coil to which the moving contacts are attached. you can expect a magnetic breaker to offer the following advantages: smaller margin between operating current and trip current, can be as little as 10% more rapid response time, response time variable relatively insensitive to the ambient temperature, much less so than thermal breakers possibility of remote operation by auxiliary coil and many other useful configurations Try AIRPAX Maryland for expert information on Magnetic breakers, a subsidiary of Philips. an unsolicited observation: sorry to hear you have lost the people who designed the product. Buyers and managers need good engineers to keep them out of pitfalls like the substitution you have described. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
