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@transparent
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Joined: Jan 20, 2022
Last seen: Aug 18, 2025
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Topics: 16 / Replies: 2430
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RE: My experience with the Selpos Mason DIY kit

I think that's the correct conclusion. An MCB/MCCB is designed to trip at currents which are around 2x its rating. To provide protection for a sho...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

As @chickenbig has replied in text, may I also do the same, but in graphics... Here is the twisted-pair configuration we're discussing, which is the...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

OK, will do.I already have the right contacts in local government to make that approach to the area fire authority. On this evening's BBC TV news I ...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

I'm disappointed if that's the case. The fitting of red/yellow rotary switches has been a requirement for houses with renewable generation/storage f...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

Rotary switches, and their use by the Fire Brigade Well that's no good in a house that not only has storage batteries, but also a battery control...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

Erm... that CT clamp is an input to the MP 3000-SE (Sofar's battery storage controller) rather than the pre-existing PV inverter.According to the manu...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

At a nominal 50v battery voltage, you would expect a 5kW inverter to draw 100A max.But that assumes the current is steady. In reality, most loads will...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

I too don't like the look of that breaker on the Battery wires. We discussed adequately-sized DC breakers earlier on this topic. You can buy them on e...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

Having seen the photos, I too have a plethora of questions! Why is the red/yellow "emergency breaker" placed so high up and to the right?This is w...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

I agree with @chickenbig that we need more information on what's connected to the underside of the 3000-SE unit. Another photo perhaps? There also a...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

Simply swapping around CT clamps doesn't appeal to me as a logical approach! Assuming that your solar installation and its grid-tied inverter preced...

2 years ago
Forum
Energy Storage
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RE: My experience with the Selpos Mason DIY kit

Those last three photos don't show an 8kW shower in use. They show 1.6kW being used within the home, which is coincidentally matched by the electric...

2 years ago
Forum
Energy Storage
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