Re: Cooling fan circuit breakers

["jtrealtywebspannet" <jtrealty@xxxx>]

Fuses and circuit breakers are completly different devices. The only 
thing you can say they have in common is that they are protective 
devices used in electrical circuits. The main reason that there is a 
circuit breaker in the cooling fan circuit is for the ability for it 
to take short periods of higher than usual current so you can start 
the fans,(when motors start they have a very high current draw, much 
higher than when they are running steady-state). The circuit breaker 
also gives the automatic resetability which is desirable in critical 
circuits like headlights and wipers (not that hey are used in 
Deloreans but are on most cars). Unless you really understand what you 
are doing in the electrical system it is best to keep it as stock as 
possible with the exception of the recomended relay and circuit 
breaker upgrades. Make sure all connections are clean and tight and 
you actually have the correct size fuses in the correct locations. 
Carry an assortment of fuses for emergencies so you can always replace 
a blown fuse with the correct size. FYI the fuses in the Fanzilla are 
not redundent, each fan has it's own fuse so if 1 fan dies it won't 
take the whole circuit with it, now you REALLY know what the Fan Fail 
Light is supposed to do, tell you when you have a bad fan! 
David Teitelbaum
vin 10757



--- In dmcnews@xxxx, "content22207" <brobertson@xxxx> wrote:
> A fuse and a circuit breaker are essentially the same thing (you 
just
> don't throw one of them away).
> 
> DMC must've put the breaker in originally because the circuit is
> unprotected otherwise. These fan fixes seem to be fused, rendering 
the
> thing redundant. Even those of us who just jump the relay socket
> usually do so with fused wires. *IF* you've got a modified fuse
> protected circuit, why not take the breaker out? After 20 years of
> passing current, is it any wonder they're getting twitchy.
> 
> Bill Robertson
> #5939