From: arl_123234@hotmail.com   
      
   On 11/24/2014 12:47 PM, gfretwell@aol.com wrote:   
      
   > Dual element fuses are usually intended for motor loads. They have an   
   > instant element that will respond to short circuit faults rated at   
   > more than the nominal fuse size and a thermal element that will cook   
   > off if you have a sustained overload. It allows the fuse to sustain   
   > the start current without blowing but it will let go if that overload   
   > continues.   
   > You can go to the Bussman web site and see the curves for the various   
   > fuses.   
   >   
   Hello, and thanks for the detailed follow-up.  All this started because   
   the S-type 30 Amp plug fuse (with the internal spring) blew (I had a   
   shorted-out lamp fixture).  My local hardware store only had the SL 30   
   amp S-type and substituting that appears to work but judging from your   
   comment it may be subject to blowing more quickly than the original   
   given certain conditions.  Sincerely,   
      
   --   
   J. B. Wood	            e-mail: arl_123234@hotmail.com   
      
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