Hello Victron! Hello to All!
Due to various recently published articles,
I am unsure whether the Victron Mega-Fuses are suitable for lithium batteries. First I tried to find more precise specifications from Victron. There is only this data sheet for that.
But it is also difficult to find information and specifications on NH fuses when used with DC. After studying various data sheets, I assume that one should consider "switching capacity current" or "rated conditional short-circuit current" as a "limit criterion".
- Siemens specifies specifies a "switching capacity current" of 25 kA for DC voltages.
- ETI - I could only find specs for AC voltage
- ABB – has values for "breaking capacity" of 70 and 80 kA for DC voltage
All in all, there seems to be little reliable evidence for any type of fuse in DC applications at low-DC-voltage. That's why I think that screwed contact surfaces like the Victron Megafuse with a defined torque could definitely have advantages. But unfortunately I could not find any information with which torque the Megafuse should be screwed into the associated Victron fuse holder.
I am interested in very detailed and precise information on any type of fuse that should be considered when using lithium-ion batteries, especially from Victron.
Servus - DayAndNight
