CSN 35 4701-2-1 ZZ1-2000 Low-voltage fuses Part 2-1: Supplementary requirements for qualification of fuses (fuses mainly used for industrial applications) Parts 1 to 4: Types of fuses, qualification standards
2004CSN 35 4701-2-1 ZZ1-2004 Low-voltage fuses Part 2-1: Supplementary requirements for qualified fuses (fuses intended primarily for industrial purposes) I to V: Standardized fuses of instance types
2000CSN 35 4701-2-1 ZZ1-2000 Low-voltage fuses Part 2-1: Supplementary requirements for qualification of fuses (fuses mainly used for industrial applications) Parts 1 to 4: Types of fuses, qualification standards