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I have been asked/invited to "post more", lol, so let me make another post right away.
I thought of sth worthy to post, of interest to many, I hope I found sth on the quick...
The photo is just to illustrate the switch I'll be talking about. What's visible, I did long ago, serves me well: power switching is reliable and safe, that's how I like it.
So, again, the relevant part of the photo is just the switch display: the first ... let me count ... 4 images, counted from top left.
On to the discussion point, if you like:
- I got another one of this "Heschen" switch (as I liked its solidity), regardless that most reviewers (amazon) complained: "far too tight space to wire anything!!!", like that, yeah, really, they post their reviews)
But I can wire it of course, nimble fingers.
- Plan was, to use the new switch for a different purpose, obviously, namely: DC only, namely ONE IN, TWO OUT (contrary to the first switch, and which was AC only anyway)
- received it, opening the casing though, I see now (may have missed the sticker on the first switch), it's rated only Ie: 1A DC (240VDC rating of no concern)
Plan was, to use this second Heschen switch for:
--- Solar Charge Controller (is a variable voltage CC) > existing DC Breaker box > Heschen switch IN
--- Switch pos 1: Heschen switch OUT > House battery bank Ue 25.6VDC LiFePo4 (24S 150Ah 6x, if you understand DC batteries)
--- Switch pos 2: Heschen switch OUT > new e-motorbike battery bank Ue 76.8VDC LiFePo4 (also 24S 50Ah 2x)
--- Solar input MAX: 180VDC @7A > MPPT CC > ~28VDC @~42A OR ~85VDC @~14.7A MAX
--- The MAXes are theoretical maxes, never realized where I am currently. But the house battery bank charging might well get ~30A if we get good sun in the summer (expected).
--- The wiring is NOT to discuss, it's Silicone AWG10 which is plenty for this purpose.
Yes, since the (new also) CC has USER setting, I can have it charge EITHER house battery bank OR motorbike battery bank.
The 2nd Heschen switch was meant to switch between the two purposes. FYI: Most efficient is when you charge EVs straight from solar DC, if you can.
It's a very solid switch, hence why I got it again, I was suprised now to find its sticker saying Ue 1A DC.
Discussion points I see would be (at Uni):
1) Would you put 30A through switch pos 1 at times when the sun radiation is high? Give reasoning either way.
2) Is switch palpation sufficient for you to determine that if switch gets warm, you discontinue your switch test?
I thought of sth worthy to post, of interest to many, I hope I found sth on the quick...
The photo is just to illustrate the switch I'll be talking about. What's visible, I did long ago, serves me well: power switching is reliable and safe, that's how I like it.
So, again, the relevant part of the photo is just the switch display: the first ... let me count ... 4 images, counted from top left.
On to the discussion point, if you like:
- I got another one of this "Heschen" switch (as I liked its solidity), regardless that most reviewers (amazon) complained: "far too tight space to wire anything!!!", like that, yeah, really, they post their reviews)
But I can wire it of course, nimble fingers.- Plan was, to use the new switch for a different purpose, obviously, namely: DC only, namely ONE IN, TWO OUT (contrary to the first switch, and which was AC only anyway)
- received it, opening the casing though, I see now (may have missed the sticker on the first switch), it's rated only Ie: 1A DC (240VDC rating of no concern)
Plan was, to use this second Heschen switch for:
--- Solar Charge Controller (is a variable voltage CC) > existing DC Breaker box > Heschen switch IN
--- Switch pos 1: Heschen switch OUT > House battery bank Ue 25.6VDC LiFePo4 (24S 150Ah 6x, if you understand DC batteries)
--- Switch pos 2: Heschen switch OUT > new e-motorbike battery bank Ue 76.8VDC LiFePo4 (also 24S 50Ah 2x)
--- Solar input MAX: 180VDC @7A > MPPT CC > ~28VDC @~42A OR ~85VDC @~14.7A MAX
--- The MAXes are theoretical maxes, never realized where I am currently. But the house battery bank charging might well get ~30A if we get good sun in the summer (expected).
--- The wiring is NOT to discuss, it's Silicone AWG10 which is plenty for this purpose.
Yes, since the (new also) CC has USER setting, I can have it charge EITHER house battery bank OR motorbike battery bank.
The 2nd Heschen switch was meant to switch between the two purposes. FYI: Most efficient is when you charge EVs straight from solar DC, if you can.
It's a very solid switch, hence why I got it again, I was suprised now to find its sticker saying Ue 1A DC.
Discussion points I see would be (at Uni
):1) Would you put 30A through switch pos 1 at times when the sun radiation is high? Give reasoning either way.
2) Is switch palpation sufficient for you to determine that if switch gets warm, you discontinue your switch test?
