recre8

I'd say go for it. I have the 100A switch over products from TOMZN and never had an issue. There is a video floating online of the copper braid that they use inside in the conducting path and they look beefy.

I wouldn't necessarily trust it to run at 63A continuously, but with the normal fluctuating power load of a house I don't see any problem. Best is to install it the way you want and monitor the temperature (by feel) when you know heavy loads are being pulled, e.g. tumble dryer together with kettle and geyser on etc. How often have you tripped your mains breaker?

I'm helping a friend install an Axpert King 5kW (Synapse brand) inverter. Does anyone have specs on the amount of AC passthrough current the device can handle (in ECO mode)? For clarification, that would be the max current the device can handle when grid power is available and the inverter simply bypasses. The Deyes and Sunsynks clearly show their maximum passthrough current on the label, but I haven't been able to find anything concrete for the Axpert devices. I currently specced the input and output terminals to 25A MCBs (5.7kW) but I have seen a few post of forum members stating that passthrough is more likely to be 40A?

For the solarman loggers there is a secret menu where the mode can be switched to station only. Access the logger with a browser and log in. Then go to “http://xxxxxx/config_hide.html” Not sure if the new Sunsynk logger also has this.

Ah update... did a quick google search. There IS a South African standard (VC8036 / SANS-556-1 Lowvoltage switchgear Part 1: Circuit-breakers) BUT the regulator published an amendment stating that: So it seems that as long as you have ISO or EN certification on your switchgear, SABS compliance is implied and the insurance man can't deny your claim based on that.

Also wondered about that, but I did notice that almost none of my Schneider and Hagar breakers have SABS logos on them. And I definitely trust them way more than the MES rubbish I had in before which did have the SABS logo. I did notice that all my breakers have EN60947 certification (google says BS EN 60947-6-1 - Low-Voltage Switchgear and Controlgear). I don't know if we have a local equivalent of such a certification, but then again, having a SABS brand on something nowadays means it'll likely catch fire upon first use. Ultimately, I think the insurance companies only look for an electrical CoC being in place.

FYI I see the SANS 10142-1-2 standard was published sometime late last year and then shortly thereafter withdrawn again. https://www.gov.za/sites/default/files/gcis_document/202203/45954gen850.pdf

That looks like one of the older all-in-one models that have the relay that cuts your power inside the unit. These are no problem for solar installations. The newers prepaid meter split the system so that your actual meter (that cuts your power) is in a tamper-proof box out on the street and you only have a keypad to the meter. Eskom uses PLC (powerline communication) which sometimes an inverter will cause trouble with. Tbh, sometimes even running a fridge on a circuit can cause communication issues with these things. The newest installations City of Cape Town has done have all been with RF (radio) keypads so no issues there. Some of those meters are set up to detect current feeding back into the grid as tamper and to trip in that case. Should that happen though, if your installation is registered with the city, they will come out and replace your meter. FYI, those meters do allow small amounts of current to be fed back since this is a normal occurrence where a motor for instance turns off and the back-EMF is fed back to the grid. They usually have a threshold of a certain amount of energy for a limited period (15s). With a proper installation and CT clamp installed correctly you shouldn't run into those issues anyway.

When I did my installation the new SANS 10142-1-2 something something SSEG requirements were still in draft state. Has this now been finalized yet? I've come across a few drafts of the spec and there are a few places my installation won't be compliant. My cables are all in plain PVC trunking indoors and standard electrical 20mm PVC conduit outdoors. Judging by most of the installations on the "Member showcase" forum section, most other intallations also use PVC. I can't really find any installation that uses metal conduit. Then there is also the myriad of hazard and warning labels that are required now. It's easy enough to buy a pack of them, but the draft document doesn't really clearly state exactly which stickers need to be used and where they need to go. How did you guys go about it?

@RatBag I cannot for the life of me see how the supplier can think this is normal behaviour. What would be the point of the unit then? If you still have the unit, there something you should perhaps test. These units are all the same, with different labels printed on them and they all "prefer" Source A. That the only reason I bought mine labelled as Generator and City Power (despite using it for solar)... simply because the City Power is labeled as Source A. Try swapping your sources as per your example connection photo with Source A = Eskom and Source B = Inverter and see if that perhaps results in the functionality you are expect. I can tell your for certain that both my units follow the following logic when in Auto mode: A present + B present = A selected A present + B missing = A selected A missing + B present = B selected In my case (with solar connector to B at the bottom and eskom connected to A at the top) the unit wants to stay in position A. When eskom fails, it jumps to B and the moment Eskom returns, it will go back to A. EDIT: Video found on Youtube showing the behaviour I have (timestamp 4:10)

It definitely sounds like your unit may be faulty or something inside isn't making contact. The 2 seconds delay for the relay also doesn't sound right. My units (100A units with generator and city power icons) switch instantly to whichever source is available. If both are available, it stays on Source A. If either one of the sources fail, it switches to the source with power. To my knowledge these units don't have overcurrent protection built in and rely on you having overcurrent protection upstream, which would be required anyways.

Sounds like it might be. Post a photo of your setup.

Hey. They are still going strong after more than a year. I don't use them to switch daily though, but they do cycle whenever loadshedding hits. Haven't had any issues. Only thing I have noticed is that the green LED isn't as bright as the red one, but that's about it. Otherwise I would recommend them.

Hmm my 5kW Deye didn’t switch over to UPS this morning when loadshedding hit. As the grid went down, so did my power. Checked the inverter: screen is off and doesn’t light up when you touch it. The blue power switch LED is on though. I restarted the battery and inverter. Inverter powered up like normal. The log shows F34 AC_Overload_Fault for the event. A few minutes later, UPS power came on and everything seems fine again. I’ve only ever seen this during or directly after a firmware update. My load was about 300W at the time and battery at 70%. There doesn’t seem to be any information about what this error is exactly. There are other codes that describe overcurrent etc in the manual that are well documented. F34 seems like a code the manufacturer doesn’t expect to happen. The other codes in the 30 range seem to be related to Grid AC, not load.

My Deye was updated to 3.3.77.4 a few weeks ago when I reported the issue to Deye. The update did not fix it.