"Lew Hodgett" wrote in message
ink.net...
Doug Dotson wrote:
That's correct. My 160 amp alternator is cold rated at 160. At operating
temperature (too hot to touch) it only puts out around 135 or so. The
160 figure is really a marketing figure.

Another fine example of a tinker toy alternator.

Most of the so called marine alternators are just that, tinker toy
alternators.

Define a tinker toy alternator?

Most are cold rated, strictly a marketing gimmick.

Most are rated bath cold and hot.

A true heavy duty alternator is hot rated, not cold.

As are most marine alternators. Both figures are useful.

At least they were when I was involved in their design a long time ago.

Welcome to the 21st century.

If you want to see some real alternators, look at Leece-Neville.

Do they make one suitable for marine applications? If so, then I will
take a look at them.

A 200 amp alternator is truly a hot rated 200 amp alternator, not some toy
that has to be derated if you read the fine print.

Doesn;t matter as long as on understands what is going on.

Of course, it will cost more, there ain't no free lunch.

Cost doesn;t amtter when it is a boat.

Lew