Path: csiph.com!eternal-september.org!feeder.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Don Kuenz Newsgroups: sci.electronics.design Subject: Re: AC switch fault current philosophy Date: Wed, 3 Jan 2018 22:07:29 -0000 (UTC) Organization: A noiseless patient Spider Lines: 45 Distribution: world Message-ID: <20180103c@crcomp.net> References: <20171228b@crcomp.net> <20180103a@crcomp.net> <20180103b@crcomp.net> Injection-Date: Wed, 3 Jan 2018 22:07:29 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="cbddec1ca58d499ea78b09163b8944b3"; logging-data="30212"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX193anThv8hvvEQOnpf5mEMu" Cancel-Lock: sha1:KOR8wbTCPfNrImeAX9F6iXCwYUU= Xref: csiph.com sci.electronics.design:490189 Tim Williams wrote: > "Don Kuenz" wrote in message news:20180103b@crcomp.net... >> RS-232's the old school way and it's probably the most reliable. WiFi's >> probably cheaper. >> >> Remote Setup, Control, and Monitoring in One Panel > > > Ah, sure -- that'll do, just remember operation might not be guaranteed > (Wifi anyone? :) ), so the self contained breaker action is still needed. A > keep-alive loop might be acceptable to rely on, whether in very basic > hardware like a 4-20mA loop, or in software like a serial watchdog. > > It'd be a natural for integration into a panel like that. Though as fuses > and breakers have done just fine over the last century, it seems unlikely > you could justify the cost, except in extraordinary situations (like > aerospace SSPCs). One of my clients uses such a system in his home. When he's away from home he VPN connects to his home panel and uses a web browser to keep an eye on things. He can control any light in the house (and probably outlets too.) Granted, it's a more expensive. But it's also relatively common, if the quantity of companies that service such home panels is any indication. It looks like Eaton offers a guy that retro-fits into an existing panel. Remote Controlled Circuit Breakers Eaton's Remote Controlled Circuit Breakers offer energy savings, convenience, and flexibility, all within the smallest breaker size in the industry. Schedule times for lighting or building systems to turn on and off. Easy to upgrade existing panelboards using remote-controllable breakers. Select from plug-on or bolt-on mountings in 120/240V or 270/480V. For complex systems, see our complete line of Pow-R-Command Lighting and Load Control. http://www.eaton.com/Eaton/ProductsServices/Electrical/ProductsandServices/CircuitProtection/IndustrialMiniatureCircuitBreakers/RemoteControlledCircuitBreakers/index.htm Thank you, -- Don Kuenz, KB7RPU