If that one from Anderson is it that would make perfect sense. With the miner pulling up to 25A even Bitmain would not spec the connector to be just 25A. One rated for 30A gives a perfect reserve safety margin and that Anderson plug/socket are a much smaller size than industrial IEC ones.
The miner doesn't pull 25A though.
The quoted power consumption is 27.5W per TH.
122 TH x 27.5 = 3355W
Even if we round that up to 3600W, at 200V (the lowest operating voltage) that's still only 18A.
It's not ideal to run 18A through a 20A connector 24/7, however it would be ok with around 11% tolerance.
It will pull more than 27.5 watts per th. add the four fans and the controller.
easy peasy 100 more watts. which is about 1 amp plus 18 amps = very close to 19 amps..
so they say it is 25 amp rated. but only on the miner end. not the c19 end.
there is a fix. https://www.cables.com/nema-l6-30p-to-l6-30r-extension-cords.html this is a 30 amp cable.
cut the c19 off bitmains cable and add this.
https://www.ebay.com/itm/2-pk-NEMA-L6-30P-Male-Plug-30A-250V-Locking-Plug-L6-30-for-Generator-RV-Welder/125120544057?
this is more okay if you run near 208 volts
all our wall outlets are l6-30r
so
1)30 amp breaker
2) l6-30r wall outlet
3) l6-30p to l6-30r ten gauge cable
4) mod bitmains piece of shit cable with l6-30p to bitmains locking part
I have 1,2,3 in hand and I have l6-30p plugs
if i buy these I only need cut a non ul cable and add a better plug.
if may at least be mechanically sound.
bitmains cable is not mechanically sound at 200 volts and is not good at 205 -208 volts.
3700/200= 18.5-19 amps which will not do well in summer with a c19 plug
if bitmain cable is 12 gauge but short it may be okay.
@ mikeywith looks like whatsminers may be the move for me.
I literally allowed 245w for fans and controller. 3355W for hashing, 245W for fans and controller, 3600W total. My calculation of 18A is based on 3600W at 200V, and therefore 18A is a worst case scenario.
you are too optimistic
122 x 27.5 = 3335 This is what you pick
122 x 28.0 = 3416
122 x 29.0 = 3538
122 x 30.0 = 3660
I can tell you if the mine is warm all of the numbers above need to be figured in.
AND 3660+200= 3860/200= 19.3 amps.
thats not acceptable 365/24/7
btw pulling 18.0 amps on a 20 amp socket like a c19 is pressing very hard.
I will likle be going the route of whatsminer 30s++ over these.
mikeywith may be able to help me find some gear.
If we get two m30s++ and one octominer tank 12 cooler i will do a thread on them.
if you get any of these antminers i would love to see on in action maybe with some heat gun numbers reading the c19/c20 connections.
maybe they will be cooler than i think 🤔 you could be right. I have made multiple erros in my life so my over abundance of caution may be too much caution.
It's better to create a leeway in these edge-case scenarios, I agree. Had a wiring meltdown once, thankfully I was in the same room when it happened.
