S&C Electric Company

Time-Current Characteristic Curves

SMD® Power Fuses, Outdoor Transmission

For your convenience, S&C’s TCC Curves have been saved in Adobe® PDF and Microsoft® Excel formats. To view the PDFs online, you’ll need Adobe’s Acrobat® Reader® software, available for free download at Adobe’s website.

S&C Standard Speed
Curve Type kV Nom. Ratings Fuse Type TCC Number PDF Excel
Minimum Melting All SMD TCC Number 153-1 PDF Excel
Total Clearing 34.5 and 46 SMD-1A TCC Number 153-1-5-1 PDF Excel
Total Clearing 34.5 and 46 SMD-2C TCC Number 153-1-5-2 PDF Excel
Total Clearing 34.5 and 46 SMD-50 TCC Number 153-1-5-5 PDF Excel
Total Clearing 69 SMD-2B and SMD-3 TCC Number 153-1-6 PDF Excel
Total Clearing 69 SMD-1A TCC Number 153-1-6-1 PDF Excel
Total Clearing 69 SMD-50 TCC Number 153-1-6-5 PDF Excel
Total Clearing 115 and 138 SMD-1A and SMD-2B TCC Number 153-1-9 PDF Excel

 

S&C Standard Speed for VTs
Curve Type kV Nom. Ratings Fuse Type TCC Number PDF Excel
Minimum Melting All SMD TCC Number 115-1 PDF Excel
Total Clearing 34.5 and 46 SMD-1A TCC Number 115-1-5-1 PDF Excel
Total Clearing 34.5 and 46 SMD-2C TCC Number 115-1-5-2 PDF Excel
Total Clearing 69 SMD-2B and SMD-3 TCC Number 115-1-6 PDF Excel
Total Clearing 69 SMD-1A TCC Number 115-1-6-1 PDF Excel
Total Clearing 115 and 138 SMD-2B TCC Number 115-1-9 PDF Excel

 

S&C Slow Speed
Curve Type kV Nom. Ratings Fuse Type TCC Number PDF Excel
Minimum Melting All SMD TCC Number 119-1 PDF Excel
Total Clearing 34.5 and 46 SMD-1A TCC Number 119-1-5-1 PDF Excel
Total Clearing 34.5 and 46 SMD-2C TCC Number 119-1-5-2 PDF Excel
Total Clearing 34.5 and 46 SMD-50 TCC Number 119-1-5-5 PDF Excel
Total Clearing 69 SMD-2B and SMD-3 TCC Number 119-1-6 PDF Excel
Total Clearing 69 SMD-1A TCC Number 119-1-6-1 PDF Excel
Total Clearing 69 SMD-50 TCC Number 119-1-6-5 PDF Excel
Total Clearing 115 and 138 SMD-1A and SMD-2B TCC Number 119-1-9 PDF Excel

 

S&C Very Slow Speed
Curve Type kV Nom. Ratings Fuse Type TCC Number PDF Excel
Minimum Melting All SMD TCC Number 176-1 PDF Excel
Total Clearing 34.5 and 46 SMD-1A TCC Number 176-1-5-1 PDF Excel
Total Clearing 34.5 and 46 SMD-2C TCC Number 176-1-5-2 PDF Excel
Total Clearing 69 SMD-2B and SMD-3 TCC Number 176-1-6 PDF Excel
Total Clearing 69 SMD-1A TCC Number 176-1-6-1 PDF Excel
Total Clearing 115 and 138 SMD-2B TCC Number 176-1-9 PDF Excel