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Old 10-05-09, 11:54 AM   #15
AC_Hacker
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I have noticed that a local solar company uses bi-metallic thermal disk switches, on the order of this:


You couldn't get a differential function, but at 25 amps and 240VAC max, it could turn the whole system on & off, very reliably, without standby current, without the need for a relay.

Regards,

-AC_Hacker

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