Hogheavenfarm
Regulation Stifles Innovation
- Joined
- Jun 24, 2022
- Messages
- 440
Good Morning frenz,
I have a question about the instructions given in my Victron 24v Balancer
The system is 24v with 2s2p arrangement of 12v 200ah AGM batteries. The Victron manual lists these notes for wiring the balancer in.
(2) In case of series-parallel connection, the midpoint interconnecting cables must be sized to at least carry the current that arises when one battery becomes open-circuited. - In case of 2 parallel strings: cross section 50% of the series interconnecting cables. - In case of 3 parallel strings: cross section 33% of the series interconnecting cables, etc.
(4) Use at least 0,75 mm² to wire the negative, positive and midpoint connections (in this order). Additionally, if in your application it is needed to comply with UL, also fuse these wires near the batteries with a 10A fuse suitable for DC current (e.g. Littelfuse ATOF series automotive blade fuse in combination with an inline fuse holder).
I plan on using 12g wire for the connection leads to the batteries, with 10a blade fuses.
The battery interconnecting cables are 2 AWG
The way note #2 reads, I assume the “midpoint connecting cables” are the battery interconnects and not the Victron leads to the “center” connection at the battery serial cables, because I would then need 4 AWG leads to the Victron balancer, and there is no way that would fit the terminals on the Victron.
Also note #4 says I could use 18g or thicker for the “midpoint connections” which in this particular note would be the Victron leads, not the battery serial connection cable.
Am I understanding this correctly?
I have a question about the instructions given in my Victron 24v Balancer
The system is 24v with 2s2p arrangement of 12v 200ah AGM batteries. The Victron manual lists these notes for wiring the balancer in.
(2) In case of series-parallel connection, the midpoint interconnecting cables must be sized to at least carry the current that arises when one battery becomes open-circuited. - In case of 2 parallel strings: cross section 50% of the series interconnecting cables. - In case of 3 parallel strings: cross section 33% of the series interconnecting cables, etc.
(4) Use at least 0,75 mm² to wire the negative, positive and midpoint connections (in this order). Additionally, if in your application it is needed to comply with UL, also fuse these wires near the batteries with a 10A fuse suitable for DC current (e.g. Littelfuse ATOF series automotive blade fuse in combination with an inline fuse holder).
I plan on using 12g wire for the connection leads to the batteries, with 10a blade fuses.
The battery interconnecting cables are 2 AWG
The way note #2 reads, I assume the “midpoint connecting cables” are the battery interconnects and not the Victron leads to the “center” connection at the battery serial cables, because I would then need 4 AWG leads to the Victron balancer, and there is no way that would fit the terminals on the Victron.
Also note #4 says I could use 18g or thicker for the “midpoint connections” which in this particular note would be the Victron leads, not the battery serial connection cable.
Am I understanding this correctly?