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Triacs rather than contactor
3 CommentsSorted by Oldest First
Hm, I can answer my own question. 40A RMS would generate about 25-40watts * 3 (for three phase). Too much heat.
Regards,
Dave
OpenEVSE Support
said
over 6 years ago
Yes, too much heat... tendency to fail unsafe (closed) and also a fail of UL safety standards as Triacs / Solid State Relays can have residual voltage on the lines.
What about IGBTs?
David and Penelope Kerr
Has their been any consideration to using Triacs for the ctive (but not neutral) switching- particularly for three phase?
Any thoughts?
Regards,
Dave