February 18, 20233 yr So i just recently checked out the newest manual for the Sunsynks/Deye and something in this newest version just does not make any sense to me . Their recommended breaker sizing on the outputs of the inverters are laughably small and dont consider pass through current at all which is one of the major selling points to these inverters IMO. 20A breaker on a 8kw Sunsynk which should be able to pass though 40 plus amps. 16A breaker on the 5kw version which can pass through 35 A ... Am i missing something here ? DC Breaker for battery SUN 5K-SG-EU: 150A DC breaker SUN 6K-SG-EU: 200A DC breaker SUN 8K-SG-EU: 250A DC breaker SUN 10K-SG-EU:300A DC breaker SUN 12K-SG-EU:300A DC breaker ② AC Breaker for backup load SUN 5K-SG-EU: 16A AC breaker SUN 6K-SG-EU: 16A AC breaker SUN 8K-SG-EU: 20A AC breaker SUN 10K-SG-EU:32A AC breaker SUN 12K-SG-EU:32A AC breaker ③ AC Breaker for grid SUN 5K-SG-EU: 63A AC breaker SUN 6K-SG-EU: 63A AC breaker SUN 8K-SG-EU: 63A AC breaker SUN 10K-SG-EU: 63A AC breaker SUN 12K-SG-EU: 63A AC breaker
February 19, 20233 yr I agree, it is way too low. I assue this is something which came out in the short time they have been in the market. In an attempt to limit the influx of repair requests, they have now limited the breaker sizes.
February 21, 20233 yr wow, that is nuts... 16A at 230V is only 3.6kW, most definitely not 5kW, so they've basically de-rated their units by quite a lot... 5kW at 230V 21.7A so I could go with a 20A breaker but again, as mentioned, a selling point is the pass through current feature...
February 21, 20233 yr Where exactly does it say this? Can you post a link to a file or scan an entire page from the manual? I'm just looking at the page for Sunsynk.org, the installer manual..., https://www.sunsynk.org/_files/ugd/52fa1b_aa03becb64764793a28c5d8f2b0fee4c.pdf and there it still indicates the AC output load breaker as 32A on a 5kW inverter.
February 22, 20233 yr On 2023/02/18 at 2:13 PM, Nexuss said: So i just recently checked out the newest manual for the Sunsynks/Deye and something in this newest version just does not make any sense to me . Their recommended breaker sizing on the outputs of the inverters are laughably small and dont consider pass through current at all which is one of the major selling points to these inverters IMO. 20A breaker on a 8kw Sunsynk which should be able to pass though 40 plus amps. 16A breaker on the 5kw version which can pass through 35 A ... Am i missing something here ? DC Breaker for battery SUN 5K-SG-EU: 150A DC breaker SUN 6K-SG-EU: 200A DC breaker SUN 8K-SG-EU: 250A DC breaker SUN 10K-SG-EU:300A DC breaker SUN 12K-SG-EU:300A DC breaker ② AC Breaker for backup load SUN 5K-SG-EU: 16A AC breaker SUN 6K-SG-EU: 16A AC breaker SUN 8K-SG-EU: 20A AC breaker SUN 10K-SG-EU:32A AC breaker SUN 12K-SG-EU:32A AC breaker ③ AC Breaker for grid SUN 5K-SG-EU: 63A AC breaker SUN 6K-SG-EU: 63A AC breaker SUN 8K-SG-EU: 63A AC breaker SUN 10K-SG-EU: 63A AC breaker SUN 12K-SG-EU: 63A AC breaker Those are all 3 phase inverters, so it's not quite so ridiculous. Taken from this manual, page 22: (note the LP3 part) https://www.deyeinverter.com/deyeinverter/2022/12/07/rand/3659/【B】30240301001058-使用说明书-储能三相-SUN-(5-12)K-SG04LP3-EU-德业英文-封面彩印-封面封底157g-内页70g铜版纸-142.5x210mm-Ver2.2.pdf Edited February 22, 20233 yr by P1000
February 22, 20233 yr Author 1 hour ago, P1000 said: Those are all 3 phase inverters, so it's not quite so ridiculous. Taken from this manual, page 22: (note the LP3 part) https://www.deyeinverter.com/deyeinverter/2022/12/07/rand/3659/【B】30240301001058-使用说明书-储能三相-SUN-(5-12)K-SG04LP3-EU-德业英文-封面彩印-封面封底157g-内页70g铜版纸-142.5x210mm-Ver2.2.pdf Wow ! so glad about that! i had no idea they made all those sizes in 3 phase . I always just though its the 12KW unit in three phase . Thanks so much . Edited February 22, 20233 yr by Nexuss
February 22, 20233 yr 16 minutes ago, Nexuss said: I always just though its the 12KW unit in three phase AFAIK, that is the only one that is locally available. All except the 5kW is NRS approved, though.
April 1, 20233 yr On 2023/02/18 at 2:13 PM, Nexuss said: So i just recently checked out the newest manual for the Sunsynks/Deye and something in this newest version just does not make any sense to me . Their recommended breaker sizing on the outputs of the inverters are laughably small and dont consider pass through current at all which is one of the major selling points to these inverters IMO. 20A breaker on a 8kw Sunsynk which should be able to pass though 40 plus amps. 16A breaker on the 5kw version which can pass through 35 A ... Am i missing something here ? DC Breaker for battery SUN 5K-SG-EU: 150A DC breaker SUN 6K-SG-EU: 200A DC breaker SUN 8K-SG-EU: 250A DC breaker SUN 10K-SG-EU:300A DC breaker SUN 12K-SG-EU:300A DC breaker ② AC Breaker for backup load SUN 5K-SG-EU: 16A AC breaker SUN 6K-SG-EU: 16A AC breaker SUN 8K-SG-EU: 20A AC breaker SUN 10K-SG-EU:32A AC breaker SUN 12K-SG-EU:32A AC breaker ③ AC Breaker for grid SUN 5K-SG-EU: 63A AC breaker SUN 6K-SG-EU: 63A AC breaker SUN 8K-SG-EU: 63A AC breaker SUN 10K-SG-EU: 63A AC breaker SUN 12K-SG-EU: 63A AC breaker You made one hell of a scene , that's gossip for you
April 1, 20233 yr Just now, coffeedogsjujitsu said: You made one hell of a scene , that's gossip for you This thread should be taken down
April 2, 20233 yr Author 8 hours ago, coffeedogsjujitsu said: You made one hell of a scene , that's gossip for you Hi , I was unsure about something that i have read about multiple times on this forum and asked a question to the community to clarify. I don't think that is how gossip works. I would like to believe that it could help other people who also read/heard this info. There were users claiming that Sunsynk are teaching installers to put 20A breakers on the 8kw in their training course and this never made sense to me. Luckily we have some great members here like @P1000 with a tremendous amount of knowledge willing to share it freely.
April 2, 20233 yr 9 hours ago, coffeedogsjujitsu said: This thread should be taken down We can ask for it to be removed, but then someone may come to the same conclusion. At least this way lots of people learn, which is the point of the forum.
April 2, 20233 yr It's Derating The Inveter Maximum Output Current, Helps Reduce The Number Of Returned Products Due To Overload Damage, If You Have High Power Loads You Can Put Them On The Non Essential Circuits, You Rarely Have To Draw As Much At Any Given Time Anyway
April 2, 20233 yr 8 hours ago, Gohodo Victor said: It's Derating The Inveter Maximum Output Current, Helps Reduce The Number Of Returned Products Due To Overload Damage, If You Have High Power Loads You Can Put Them On The Non Essential Circuits, You Rarely Have To Draw As Much At Any Given Time Anyway @Gohodo Victor - Please read through the entire thread. This actually has nothing to do with de-rating any inverter to prevent damage. It was an honest misunderstanding from the OP, not realising that the inverter in question was not the 5kW or 8kW Single-Phase Hybrid Sunsynk/Deye that we mainly know in South Africa, but that it referred to a different 5kW and 8kW 3-Phase inverter range that is not usually marketed in South Africa, and for which the breaker ratings were stated per phase. @Moderator2 This topic still seems to create some confusion when folks read from the top. Can we please take the post from @P1000 to the top of the page, ie. make it the solution to this thread, and highlight prominently that there is not a 20A or 16A breaker limit on the 8kW and 5kW single-phase inverters respectively?
April 2, 20233 yr 5 minutes ago, GreenFields said: @Gohodo Victor - Please read through the entire thread. This actually has nothing to do with de-rating any inverter to prevent damage. It was an honest misunderstanding from the OP, not realising that the inverter in question was not the 5kW or 8kW Single-Phase Hybrid Sunsynk/Deye that we mainly know in South Africa, but that it referred to a different 5kW and 8kW 3-Phase inverter range that is not usually marketed in South Africa, and for which the breaker ratings were stated per phase. @Moderator2 This topic still seems to create some confusion when folks read from the top. Can we please take the post from @P1000 to the top of the page, ie. make it the solution to this thread, and highlight prominently that there is not a 20A or 16A breaker limit on the 8kW and 5kW single-phase inverters respectively? Good for you. It's time we look at the facts around the 3 pH inverters as you pointed out.
November 26, 20232 yr Hi, on my ac out from inverter it has a 16amp breaker instead of 32amp. It doest trip but does get warm. Would this throttle my solar panels to only give me 3500w even though I have panels that can produce 4800w? And why doesn't it trip?
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