Just got the DSSR50 PCB's not sure when I will get the time to assemble and test them but hope to be soon.
This is just the first prototype and it will sure be another prototype when all the spacers and PCB's making the case will be made and just after that and multiple tests there will be a production run.
The PCB is a 4 layer as that was sort of needed in this case to keep the unit compact. The DSSR50 is same with as the DSSR20 just longer so it should not take much space when multiple will be installed next to each other.
There are two PV inputs the two on the top each with individual ideal diode so that no individual fuses for panels are needed same as it was with the DSSR20 and each input can handle two large panels even the newer panels that start to be available with 12A or so max power point current.
Then on the bottom there is one connector that connects to battery+
The connectors are similar to what I used on SBMS40 and this ones are rated 85A so plenty for the DSSR50 that is designed for 50A continues and peaks around 60A
The DSSR50 is 2.5x more capable than DSSR20 and while I did not fully calculate the price as I will need to have the final version before I do that the target is to not be more than 2x the price of DSSR20 without diversion so around or below 75CAD (60USD)
The connector in the middle of the board will not be used at this moment but it may be for possible future modular DMPPT if there will be enough interest. Also the same middle connector may be useful for those that want just to use the two ideal diodes part of the DSSR50.
It will have a full case made of stacked PCB's similar to how SBMS0 is constructed or even more similar to SBMS40
The DSSR20 will still continue to be available (with diversion only) at least until the end of the year maybe a bit more based on the components I already have available and unchanged volume of sales but as the DSSR50 will start to become available some of the sales will probably move to DSSR50 and so DSSR20 may be still available for even a full year from now.
The diversion for DSSR50 will be available as a separate device as that will make it easier for people to add diversion later.