I have a 24/500 happily running a Liebherr Rc1401 inverter compressor fridge. I added a basic compressor small freezer with a considerably higher start up surge and was getting an inverter overload. Wiring main board to inverter is 0.7 - 1m of 10mm2 cable with a 15A fuse, so approx 360w.
I’ve now increased the fuse to 60A, cable rating 70A, and the overload warning has only happened once. Which I assume is the fuse wire letting more wigglies through quickly enough.
I feel it would be even better if I could use 35mm2 cable to the inverter with 100A fuse wire. But the Victron terminals are pretty pathetic and not M6+ useful posts.
Not helped by the complete lack of data recording by the BT dongle.
A 24/500 is rated at 500VA or 400W at 25°C, if your load is rated at 360W then you’re close to rated power, a starting current will most likely cause an overload.
The internal fuses are also 60A, 10mm2 should be enough, 16mm2 would be a bit better
500VA/400W with 900W overload. Internal fuses are 2 x 25A. I initially choose 15A fuse as fridge running load is 20-40VA/W. But then switched to 60A to be less of a restriction to the electrons. I want to use 35mm2 cable, but the terminals are rather pathetic. They should be M6+ terminal posts.
I was more interested in the physics of cabling/fuses assisting electricity flow and the amount of coulombs in fatter cables ready to quickly replenish the inverter electronics.
401W is already overload, 900W peak but under ideal conditions, for example stable DC input voltage, apart from the cables, also the battery needs to be able to deliver this. The older model uses 2x25A, the newer ones 2x30A internally, so there was some change to the hardware
While cables do act like condensators, that effect is negligable at such low voltages and distances
There is nothing wrong in having thicker cables for the run from the supply to the fridge to reduce voltage drop and having short tails in a smaller cable or use pin lugs.
The 230AC cable inverter to fridge is fine. It is the DC cables to inverter I wanted to increase but the Victron cheapskate 10mm terminals make it more complicated. (A really cheap Chinese inverter had proper M6 posts).
Being an inverter compressor, the fridge PF is 1, and Connect records 40VA/40W, not the assumed 0.8PF. So 500VA capability is 500W.