Re: [CAD_CAM_EDM_DRO] Solid State Relays for AUX control

Chuck:

I am surely not even AMONG the first to respond to this question, but I can
say something: I have used IR Crydom SSR's for years, where I need to start
motors or turn-on 100+W. lamps, etc., from "TTL" and low-DC signal-sources, and
have had PERFECT luck, except for a few that IR had subcontracted to a
south-of-the-border subcontractor, which would NOT hold up when expected to operate a
motor-load, even of only half the amp/voltage rating had been asked of them.
More recent ones (different colors and pattern on the logo-sticker on the
front of the things!) seem vastly more reliable. So goes it, sometimes, when
fiscal wisdom is suffering THD, etc.

Did you say "inexpensive"??? Unless you don't figure-in replacement-part
costs and the value of your TIME to swap-out junk gone bad, the LEAST expensive
way to build stuff is to use the BEST components you can possibly afford from
the outset! I'd much rather spend $30 for an SSR that keeps on working, than
$8.95 for one that needs to be replaced in six weeks, out in the rain!

Lotsa luck! Jan Rowland


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