21006 KEARNEY FUSE LINK, Cooper Power Systems 6Amp - NEW old stock
Price is for 1 each.

TYPE KS - Kearney Type KS fuse links employ dual element construction which gives the Type KS high surge withstand capability, and a nominal speed ratio of 20. Classified as "very slow" fuse links, the Type KS has greater surge current withstand capability than the Type T, and is a good choice for line fusing and transformer protection.
Button is removable