The Bussman KTU Series are for protection of circuit breakers with lower interrupting ratings and non‑inductive loads such as lighting and heating circuits.
Eaton Bussmann series KTU fuse, 800 A, Class L, Non-indicating, Bolted blade end x bolted blade end, 200 kAIC at 600 Vac, Melamine glass tube, Silver-plated end bells, Standard