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From: David Lesher <wb8foz@panix.com>
Newsgroups: sci.electronics.design,sci.electronics.components
Subject: Contactors/Relays
Date: Sat, 14 Oct 2017 18:16:57 +0000 (UTC)
Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex
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I have futilely been seeking 100A 3ph NC/Form B relays/contactors.
It seems they are all stashed in the "unicorn eggs" box, sigh.

So a second design approach involves dual coil relays. The
flavor I seek has one larger coil to close the relay, and a
second, much lower power holding coil to keep it closed.  Of
course, I'm not finding them either. The ones I unearth are
"close coil, open coil" flavor.

Anyone seen such?