Hello people,

 

I just got this SRNE inverter, it seems to be a cheaper options of Deye for those interested in inverters with IP65 rating.

I opened up the inverter to see the internals. I don't know anything about capacitors but I understand it is a good way to know if an inverter was properly designed and made of quality materials.

I have attacked the pictures of the internals including the caps.

The 2 caps I could make out were made by

Lelon and Samyoung. The former is not well regarded for quality from what I read online.

 

I am hoping anyone interested in this inverter can see the internal if it helps in making up their minds.

I am yet to install it and thus unable to speak to how well it works.

I posted this here so that anyone who want to buy this inverter can have a bit if foresight knowledge before they make their purchase. The picture of the internal layout is there for all to see. The SRNE HESP inverter is their offering to compete with the likes of Deye and Sunsynk at a cheaper price point. They range between 3kw-12kw. The units is an upgrade to their HES series which was released last year. The HESP add parallel functionality hence the extra "P".

I got one and currently just looking to do some component investigation before I finally install it. The outcome of the investigation is not for me but for anyone who might be interested in getting similar inverter to provide some insight (which I wish I had) since information is generally not available.

I did some search on mainly the capacitors of the inverter and here are my findings: - Kindly take all I say with a pinch of salt as I am in no way qualified to make some of this accession being no electronic component engineer nor having any certification on electronics whatsoever -

I found 2 type of capacitors on the unit. 4 big capacitors which seems to be attached to the AC part of the inverter and 8 smaller caps.

The big capacitor is labeled H305, 500v, 470uf and 105c It is made by a company called Lelon which from my search is rated for making mid range to low quality caps. I tried without success to find the exact specification of the capacitor especially the ripple rating and operating life but I was unable to find that information. The closest I found was from this capacitor made by Leaguer which was said to have a lelon equivalent is this link https://www.micros.com.pl/en/product/ke-47050035x50lt,90341.html. It was also the only link where I found any capacitor that matched with the specs I saw on the inverter. That capacitor is said to have a 2000 load life at 105c.

 

For the smaller caps they have the Samyoung label are seem to be listed here https://jlcpcb.com/partdetail/2975108-NXA_63V_2200UF_1840/C2827938 they have a lifespan of 10,000 load life at 105c.

2200uF 63V 17mΩ@100kHz ±20% 4.28A@100kHz Plugin,D18xL40mm Aluminum Electrolytic Capacitors - Leaded ROHS

 

Generally. The inverter is IP65 rated hence it follows the Deye type design of a completely sealed component side with glands for all wiring inputs. The sealed component enclosure sits on a massive heat sink powered by 2 up pushing fans. The inverter board is likely glued to the button of the inverter where the heat sink is attached (probably using thermal paste)

I am yet to use the inverter so I can not tell how well it operates especially how well the dual mppt would work.
I hope someone out there finds this uselful

 

6 hours ago, bigbrovar said:

I posted this here so that anyone who want to buy this inverter can have a bit if foresight knowledge before they make their purchase. The picture of the internal layout is there for all to see. The SRNE HESP inverter is their offering to compete with the likes of Deye and Sunsynk at a cheaper price point. They range between 3kw-12kw. The units is an upgrade to their HES series which was released last year. The HESP add parallel functionality hence the extra "P".

I got one and currently just looking to do some component investigation before I finally install it. The outcome of the investigation is not for me but for anyone who might be interested in getting similar inverter to provide some insight (which I wish I had) since information is generally not available.

I did some search on mainly the capacitors of the inverter and here are my findings: - Kindly take all I say with a pinch of salt as I am in no way qualified to make some of this accession being no electronic component engineer nor having any certification on electronics whatsoever -

I found 2 type of capacitors on the unit. 4 big capacitors which seems to be attached to the AC part of the inverter and 8 smaller caps.

The big capacitor is labeled H305, 500v, 470uf and 105c It is made by a company called Lelon which from my search is rated for making mid range to low quality caps. I tried without success to find the exact specification of the capacitor especially the ripple rating and operating life but I was unable to find that information. The closest I found was from this capacitor made by Leaguer which was said to have a lelon equivalent is this link https://www.micros.com.pl/en/product/ke-47050035x50lt,90341.html. It was also the only link where I found any capacitor that matched with the specs I saw on the inverter. That capacitor is said to have a 2000 load life at 105c.

 

For the smaller caps they have the Samyoung label are seem to be listed here https://jlcpcb.com/partdetail/2975108-NXA_63V_2200UF_1840/C2827938 they have a lifespan of 10,000 load life at 105c.

2200uF 63V 17mΩ@100kHz ±20% 4.28A@100kHz Plugin,D18xL40mm Aluminum Electrolytic Capacitors - Leaded ROHS

 

Generally. The inverter is IP65 rated hence it follows the Deye type design of a completely sealed component side with glands for all wiring inputs. The sealed component enclosure sits on a massive heat sink powered by 2 up pushing fans. The inverter board is likely glued to the button of the inverter where the heat sink is attached (probably using thermal paste)

I am yet to use the inverter so I can not tell how well it operates especially how well the dual mppt would work.
I hope someone out there finds this uselful

 

Interesting. The other night I read that the Eg4 for instance is a rebranded SRNE. There is a very popular site that gives EG4 equipment a high rating. Thus it seems the SRNE would share the same rating. 

On 2024/04/09 at 3:25 PM, Scorp007 said:

Interesting. The other night I read that the Eg4 for instance is a rebranded SRNE. There is a very popular site that gives EG4 equipment a high rating. Thus it seems the SRNE would share the same rating. 

What site is this?

3 hours ago, bigbrovar said:

What site is this?

Off grid garage or Will Prowse. Cannot remember 

Edited April 12, 20242 yr by Scorp007