Contact Us Back to Top

$5 to $13Have you ever had a distribution-fuse cutout operate unnecessarily or for an unknown cause?

The outages caused by such operations affect your maintenance and operations costs. This, in turn, affects your fuse-link costs, making a $5 fuse link in reality a $13 fuse link or even higher. Learn more about the cost of unnecessary fuse-link operations here.

The key to eliminating this impact is to remove the unnecessary cutout operations by using reliable fuse links that act only when required.

Positrol® Fuse Links are designed to provide reliable protection, and they operate only when a fault occurs within the cutout’s zone of protection. With Positrol Fuse Links, you eliminate unnecessary cutout operations and thereby reduce your maintenance and operation costs.

Advantages

Eliminates nuisance operations

Eliminates Nuisance Operations

Avoids truck rolls

Avoid Unnecessary Truck Rolls

Better coordination

Better Coordination

Positrol® Fuse Links: Design Makes a Difference

Features

Superior fault-interruption performance

Superior Fault-Interruption Performance

Unsurpassed secondary-fault performance

Unsurpassed Secondary-Fault Performance

Time current Characteristics don't change over time

Time Current Characteristics Don’t Change Over Time

Helically coiled silver elements

Helically Coiled Silver* Fuse Elements

Close melting-current tolerance

Close Melting-Current Tolerance*

Construction

Positrol Fuse Links construction


*Refer to published TCC curves for fuse element material and melting-current tolerances

Product Details

StyleOverall Length,
Inches (mm
)
SpeedRating, Amperes
Universal Style
Universal
Not Usable in Discontinued 
S&C Positect® Cutouts

23 (584) S&C Standard 1 through 200
S&C “K” 6K through 200K
S&C “T” 6T through 200T
S&C “QR” 1QR through 200QR
S&C “N” 5N through 200N
S&C Coordinating 101 through 103
Universal Style 
Universal
Usable in Discontinued 
S&C Positect® Cutouts

23 (584) S&C Standard 1 through 100
Indicating Style 
Indicating
Usable Only in Discontinued 
S&C Positect® Cutouts

10  (254) S&C Standard 3 through 100
 
Open
Usable Only in Discontinued 
Open Link Cutouts

8 (203) S&C Standard 1 through 25

S&C Standard Speed
Curve TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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 TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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 TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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 TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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

 No longer available; TCC data for reference only.

S&C “QR” Speed
Curve TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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 TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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

 No longer available; TCC data for reference only.

S&C “N” Speed
Curve TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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 TypeAmpere RatingsFuse TypeTCC NumberPDFExcel
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

Speed comparison example

A new version of the Coordinaide protection and coordination assistant software is now available for use. Key new features include:

  • Download a device’s curve data-points in a .CSV file format.
  • A new notification for “Transformer (Damage Curve)” device indicates how other device TCC curves are affected.
  • Curve selections were updated for the S&C TripSaver® II Cutout-Mounted Recloser:
    • Added NE and NK Speed under “Definite Time and Fuse Link” selection
    • Added a 140-A trip-coil rating for McGraw Type L, V4L, and 4E devices
    • Added “S&C A*” fast curves for McGraw Type 4E, 4H, L and V4L devices
  • A new Provide Feedback feature was added to submit feedback right from the application.
  • An updated User Guide now includes revision history.
Click the link below to access the new version of the Coordinaide protection and coordination assistant software today!


The Coordinaide protection and coordination assistant software lets you quickly and easily select the optimal protective device (e.g., fuses, TripSaver II Cutout-Mounted Reclosers, Vista® Underground Distribution Switchgear, or IntelliRupter® PulseCloser® Fault Interrupters) to:

  • Protect transformers against damaging overcurrents and coordinate with primary- and secondary-side protective devices.  See how S&C's novel Transformer Protection Index (TPI) can be used to determine if the primary fuse will protect against certain types of secondary-side faults, including arcing phase-to-ground secondary-side faults.
  • Protect capacitor units against case rupture.
  • Protect underground cables from insulation damage due to excessive temperatures.
  • Protect overhead conductors from damage due to annealing.
  • Confirm the proper operation of protective devices against incident-arc energy curves for various Personal Protective Equipment (PPE) levels.
  • Selectively coordinate two or more devices in series to minimize service interruptions.

Launch Coordinaide

Loading...

Contact us today to learn more.

Contact Us