250v vs 125v Fuses

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  #1  
Old 06-17-02, 09:45 PM
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BenDRL
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250v vs 125v Fuses

A small fuse from my kitchen exhaust fan just blew out. The fuse was rated 5A 250V. The physical dimensions of the fuse is roughly 3/4" long x 1/4" diameter. It's a clear glass tube with round end caps.

I went to the local hardware store and found a 5A 125V fuse with the same physical dimensions. Is it OK to use this fuse instead of the 250V version? If it is OK to use, when is it not OK to use?

Thanks for your help!

-Ben
 
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  #2  
Old 06-18-02, 12:13 AM
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FREDDYG_001
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BenDRL, That [email protected] fuse is a slow-blo fuse which is needed to allow that motor to start and run. The [email protected] fuse is a fast-acting(general purpose)fuse and is not rated for this application. Motor circuits are designed with time-delay(slo-blo) fuses to handle the inrush of current needed to start and run that motor. Radio Shack has the fuse you need listed below.



Slow-blo 5x20mm glass fuse(GDC)
[email protected], Part#270-1067, Cost $1.99, Package of #4

If it blows that fuse again check your connections, check for cooking grease and dust build-up on motor, or just replace the motor.


Fred

 
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