MC4 connectors using 6mm cable!

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Yoz7241
Yoz7241 Registered Users Posts: 1 ✭
in General Solar Power Topics #1
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!
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  • Vic
    Vic Solar Expert Posts: 3,208 ✭✭✭✭
    #2
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    Hello Yoz..,

    The specifications for cable size capabilities could vary by the manufacturer of the connector.   Some connectors may not exactly meet the general specification.

    Found this on the Net:
    https://www.windynation.com/cm/MC4 Connectors.pdf

    It does state the 6 MM cable is within the capability of MC4 connectors.

    FWIW,  Vic

    Off Grid - Two systems -- 4 SW+ 5548 Inverters, Surrette 4KS25 1280 AH X2@48V, 11.1 KW STC PV, 4X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes.  25 KVA Polyphase Kubota diesel,  Honda Eu6500isa,  Eu3000is-es, Eu2000,  Eu1000 gensets.  Thanks Wind-Sun for this great Forum.
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