Quote:
Originally Posted by Al Skierkiewicz
Have you seen something that can protect 40 amp wiring and still function at the 130 amp stall of a CIM for a short period of time?
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Yup. Infineon makes excellent FETs, and Linear Technology makes excellent surge protection control ICs that drive them. BOM cost is a little high at about $8/channel in qty 1 from Digikey (so assume 1/10th that or less at any decent scale). They have capacitors to set the allowable overcurrent time. One of the circuits I built at work hard limits at 180A and is intended for 60A continuous. Consumes a little less than a square inch.