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.