Groups > sci.electronics.design > #481454

Re: Contactors/Relays

From	David Lesher <wb8foz@panix.com>
Newsgroups	sci.electronics.design
Subject	Re: Contactors/Relays
Date	2017-10-15 03:36 +0000
Organization	NRK Clinic for habitual NetNews Abusers - Beltway Annex
Message-ID	<orul4n$ap9$1@reader2.panix.com> (permalink)
References	<ortkap$p11$1@reader2.panix.com> <6f291332-d241-4006-a9f3-253ebf4a7c8e@googlegroups.com>

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edward.ming.lee@gmail.com writes:


>This will handle 100A:

>http://www.ebay.com/itm/US-Stock-100A-Solid-State-Relay-SSR-DC-DC-Input-3-32V-DC-Load-5-220VDC-DD220D100-/371874809407?hash=item569577463f:g:1HsAAOSwfVpYroYw

>But you might need to build the 3Ph to DC converter.

??

I'm switching 3ph 208 VAC.
SSR's are not usable; 1.4V drop * 3 * 100A = 420 watts of heat to sink per relay.

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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Thread

Contactors/Relays David Lesher <wb8foz@panix.com> - 2017-10-14 18:16 +0000
  Re: Contactors/Relays legg <legg@nospam.magma.ca> - 2017-10-14 15:38 -0400
  Re: Contactors/Relays legg <legg@nospam.magma.ca> - 2017-10-14 15:52 -0400
  Re: Contactors/Relays legg <legg@nospam.magma.ca> - 2017-10-14 16:20 -0400
  Re: Contactors/Relays edward.ming.lee@gmail.com - 2017-10-14 14:15 -0700
    Re: Contactors/Relays David Lesher <wb8foz@panix.com> - 2017-10-15 03:36 +0000
      Re: Contactors/Relays M Philbrook <jamie_ka1lpa@charter.net> - 2017-10-15 12:07 -0400
        Re: Contactors/Relays mpm <mpmillard@aol.com> - 2017-10-15 09:19 -0700
      Re: Contactors/Relays edward.ming.lee@gmail.com - 2017-10-16 08:48 -0700
  Re: Contactors/Relays Hul Tytus <ht@panix.com> - 2017-10-14 21:20 +0000
  Re: Contactors/Relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-10-14 16:43 -0700
  Re: Contactors/Relays upsidedown@downunder.com - 2017-10-15 10:20 +0300
  Re: Contactors/Relays Neon John <no@never.com> - 2017-10-15 09:49 -0400

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