Positrol^® Fuse Links

Styles

Style	Speed	Rating, Amperes
23-inch (584 mm) Overall Length Universal  (Not usable in Positect®)	S&C Standard	1 through 200
	S&C “K”	6K through 200K
	S&C “T”	6T through 200T
	S&C “N”	5N through 200N
	S&C “KSR”	3KSR through 200KSR
	S&C “QR”	1QR through 200QR
	S&C “DR”	3DR through 20DR
	S&C Coordinating	101 through 103
23-inch (584 mm) Overall Length Universal (Usable in Positect®)	S&C Standard	1 through 100
29-inch (737 mm) Overall Length Extra-Performance  (Not usable in Positect®)	S&C Standard	1 through 100
	S&C “K”	6K through 200K
	S&C “T”	6T through 200T
	S&C “KSR”	3KSR through 200KSR
	S&C “QR”	1QR through 200QR
	S&C “DR”	3DR through 20DR
10-inch (254 mm) Overall Length Indicating (Usable in Positect® Only)	S&C Standard	3 through 100
8-inch (203 mm) Overall Length Open	S&C Standard	1 through 25

 All “N” and “QR” Speed Universal Style fuse links have a 29-inch (737mm) overall length.
 Extra-Performance Style fuse links are specially constructed to provide superior protection on 24.9 kV systems against all levels of secondary faults, including those in the low-fault-current range typically experienced with transformers of low KVA ratings. S&C Extra-Performance Style Positrol Fuse Links, further, are suitable for use on 26.4 kV through 34.5 kV systems for protection of single-phase-to-neutral circuits (lines or transformers) only, and grounded-wye connected capacitor banks.