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contactor |
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contactor [′kän‚tak·tər] (chemical engineering) A vessel designed to bring two or more substances into contact. (electricity) A heavy-duty relay used to control electric power circuits. Also known as electric contactor. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Unlike conventional temperature controls, for which every process loop requires six separate components that must be specified and purchased separately, EZ-Zone ST is a modular package of PID temperature controller (with continuous adaptive self-tuning standard) already connected to a 40-amp solid-state relay (SSR) power switch, plus a heat sink, current-measuring device, limit control for over-temperature protection, and mechanical contactor for safety shutdown. NTSB wants FAA to require operators to provide separation of electrical power sources to prevent the simultaneous loss of EFIS displays and to require Bombardier to develop a means of protecting electrical terminals on the contactors from moisture-induced short circuits that have caused the fires. 932 also includes a digital indicating temperature controller, a manual reset excess temperature controller with separate contactors, a recirculating blower airflow safety switch and a 10" diameter circular chart recorder. |
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