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10-22-2005 #1
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Ford Starter Solenoid as a fan relay?
Are there any issues that I will experiance if I attempt to use a Ford starter solenoid as a rely for my electric fan setup?
Basically I am wondering if they are intended to be switched closed only for short burst (starting a car) or if it does not matter how long they are latched (running a fan).
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10-22-2005 #2
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They are only rated for 30 second continuous use. It will fail. You can find 70 ampers for under $10 if you google part number R51-1D70-12F
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10-23-2005 #3
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Thanks that is the sort of answer I was looking for. Do you have a referance for finding out that sort of information on various solenoids. relays, etc. The reason being that it would be helpful in my junkyard travels.
10-23-2005 #4
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some google and I have my answer.
http://www.naisweb.com/e/relaye/mech...a/idaei4w.html
"In applications which involve lengthy duty cycles, the preferred configuration would be the use of the form B or N.C. contacts for long term duty. In those instances where the form A contact is held closed for extensive time periods, coil heating will increase contact "T" rise and may result in shorter than optimum life. Alternately, latching types may be considered for these applications, using a storage capacitor to "Reset" the relay on power-down."
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