From: arl_123234@hotmail.com   
      
   On 11/24/2014 10:04 AM, Rich. wrote:   
   >   
   > "J.B. Wood"  wrote in message   
   > news:m4vect$fcc$1@ra.nrl.navy.mil...   
   >> Hello, all, and a fuse question for a practicing electrician (or   
   >> anyone in the know):   
   >>   
   >> Assuming a residential branch circuit is fused for 125 volts, 30 amps   
   >> and the fuse box accepts the rejection base ("S") fuse, how   
   >> interchangeable are the 30 amp "D" dual element time delay (has the   
   >> spring loading) and the 30 amp "SL" time delay types?  Thanks for your   
   >> time and comment. Sincerely,   
   >> --   
   >> J. B. Wood             e-mail: arl_123234@hotmail.com   
   >   
   >   
   > The fuses themselves are identical in their operation. The only   
   > difference is the Type D screws into the standard Edison base fuse   
   > holder, while the SL fuse needs the base adapter screwed into the Edison   
   > base first, then the fuse screws into the adapter.   
   >   
   Hello, and many thanks for the prompt reply.  Unless I'm mistaken, the   
   types of plug fuses that I referred to have identical footprints; i.e.,   
   they are both rejection base types.  Either one could presumably be   
   screwed into the 30-amp rejection receptacle in the fuse box. (There is   
   a type D TC fuse with an Edison base but that's not the one I meant)   
      
   So the question seems to be the difference between having or not having   
   the "dual" time delay capability.  Sincerely,   
      
   --   
   J. B. Wood	            e-mail: arl_123234@hotmail.com   
      
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