Current tranformer for high cross-section cables

    Hi all.

    Glad to be in this forum.

    In my house I have single phase connection (220v), however I receive 3 cables from the "outside".

    These 3 cables are 6mm2 but obviously I cannot pas all of them through the CT provided.

    Any idea if other CT's (brands) can be used/compatible with Shelly EM?

    Thanks in advance

    The usable clearance of a 50A current clamp for Shelly EM is 10mm. Specs for NYM cable 3x6qmm denominate a diameter of 12,2mm. No chance to fit in a 50A clamp…

    Alternatively you could use a Shelly 3EM with a 120A current clamp. The usable clearance of this clamp is 15mm.

    It will be not possible to fit a 120A current clamp from Shelly 3EM to a Shelly EM - due to missing calibration.

    Possibly, you could mount two 50A clamps of Shelly EM - one 6qmm wire through one clamp, the remaining two wires through the other clamp - and adding the current, power and energy values of both clamps.

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Es reicht nicht“, rief Schiller, „Gedankenfreiheit zu fordern, man muß auch denken können, sonst fordert man Gedankenlosigkeitsfreiheit und die ist die Freiheit zur Dummheit, welche wiederum die schlimmste Unfreiheit überhaupt ist!“
    (Aus „Besuch aus Weimar“ von Gert Heidenreich, Schriftsteller, *1944 in Eberswalde)

    Zitat

    The usable clearance of a 50A current clamp for Shelly EM is 10mm. Specs for NYM cable 3x6qmm denominate a diameter of 12,2mm. No chance to fit in a 50A clamp…

    Alternatively you could use a Shelly 3EM with a 120A current clamp. The usable clearance of this clamp is 15mm.

    It will be not possible to fit a 120A current clamp from Shelly 3EM to a Shelly EM - due to missing calibration.

    Possibly, you could mount two 50A clamps of Shelly EM - one 6qmm wire through one clamp, the remaining two wires through the other clamp - and adding the current, power and energy values of both clamps.

    Thanks for the rapid feedback.

    Most likely will switch to 3EM but before I'll try the use of 2 CT for the 3 wires.

    Thanks