since 1962
NT FUSE 500/660V : Type NT 00, 6 – 160A, Type NT 0, 50 – 160A, Type NT 1, 50 – 250A, Type NT 2, 250 – 400A, Type NT 3, 355 – 630A NT FUSE 500V : Type NT 4, 800 – 1250A
- Type Sist 106 – 160A, Type Sist 160 – 160A, Type Sist 201 – 250A - Type Sist 401 – 400A, Type Sist 601 – 630A, Type Sist 1001 – 1000A