Thread: Separate Alternator cable for D3

Originally Posted by bee utey

Ebay has them for under $20 from China. Example:

Hi bee_utey, that is a very clever idea but I suspect that device is not large enough, both in the heatsink size and the current capacity.

The unit is designed as a bridge rectifier and as such is actually only capable of handling 100 amps pre diode for a very short time during each AC phase cycle.

To do what is required in this situation, even with an 80 amp draw, the diodes will need to handle a continuos forward current load of 40 amps, and dissipate a hell of a lot of heat.

Furthermore, the connection tabs are WAY too small.

A 200 or better still, a 300 amp version, if available, would be much better and you could still set it up the way you described.

Again, a very clever idea.

This may be the answer to the dangerous alternator failure situations.

Sterling Power Australasia | Advanced Marine and Automotive Power Products

Sterling Power Australasia | Advanced Marine and Automotive Power Products

I have just received a 210 amp unit last week and will, when I get a chance, carryout some testing to see if it will give the protection needed.