Pros:
→ smaller dimensions of D0 fuse-links, thanks to which we have more space in the switchgear,
→ low power and energy losses,
→ low temperature rise,
→ high short-circuit current limiting capacity,
→ stability of current-time characteristics and full selectivity of operation,
→ selective cooperation with overcurrent breakers,
→ 9mm socket design,
→ low height for installation in shallow distribution boxes,
→ easy swap of DO1 and DO2 sockets,
→ possibility of using VLDO1 and STV DO2 fuse switch disconnectors.