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Can you use the LH4N1 to feed a two speed starter that is only ramping up in low speed?

Yes, as long as you do not switch between speeds when unit is ramping. The switching will cause an inductive spike and possibly exceed PIV ratings of SCRs. When up to speed, SCRs are shorted out by a relay and the inductive spike should not matter.

CTA-ID : 7504
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