MC4 Connector/6mm Cable Query

[yoz7241]

Hi Guys & Girls,

Can anyone help. Im trying to find evidence that standard MC4's wont fit 6mm cable. If fitted it will result in Riso faults, loss of generation etc.
Reason being using a standard MC4 your unable to tighten the gland up fully, if tightened to much it cross threads making the ingress of water even more so.

Can anyone help me find evidence of this or knows where to point me in the right direction?

Thanks for your help in advance!

 

[TJ Anderson]

6mm is ok

32.0016P0001 | Female Cable Mount MC4 Connector Coupler, Cable CSA4 → 6mm², Rated At 30A, 1 kV | RS Components - https://uk.rs-online.com/mobile/p/solar-connectors/0560975/

 

[stefan888]

Mc4 connectors male and female work fine with 4mm and 6mm double insulated solar cable. I use them all the time they work OK. They are also water tight connection if you use the right tool

Solar Cables - Cables, Wiring & Connectors - All Products - https://voltaconsolar.com/solar-products/pv-cables/solar-cables.html

 

[Gavin A]

the gland is designed to tighten to the cable and no further, as long as it's tight and the cable can't rotate in the gland then it's water tight.