Time-Current Characteristic Curves

Positrol^® Fuse Links

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	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 123-6	PDF	Excel
Total Clearing	1 through 200	Fuse Link	TCC Number 123-6-2	PDF	Excel

 

S&C “K” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 165-6	PDF	Excel
Total Clearing	6K through 200K	Fuse Link	TCC Number 165-6-2	PDF	Excel

 

S&C “T” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 170-6	PDF	Excel
Total Clearing	6T through 200T	Fuse Link	TCC Number 170-6-2	PDF	Excel

 

S&C “KSR” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 171-6	PDF	Excel
Total Clearing	3KSR through 200KSR	Fuse Link	TCC Number 171-6-2	PDF	Excel

 

S&C “QR” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 166-6	PDF	Excel
Total Clearing	1QR through 200QR	Fuse Link	TCC Number 166-6-2	PDF	Excel

 

S&C “DR” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 175-6	PDF	Excel
Total Clearing	3DR through 20DR	Fuse Link	TCC Number 175-6-2	PDF	Excel

 

S&C “N” Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 167-6	PDF	Excel
Total Clearing	5N through 200N	Fuse Link	TCC Number 167-6-2	PDF	Excel

 

S&C Coordinating Speed

Curve Type	Ampere Ratings	Fuse Type	TCC Number	PDF	Excel
Minimum Melting	All	Fuse Link	TCC Number 172-6	PDF	Excel
Total Clearing	101, 102, 103	Fuse Link	TCC Number 172-6-2	PDF	Excel