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Thread: QS bus specification

  1. #1
    Junior Member
    Join Date
    Sep 2019
    Posts
    7

    QS bus specification

    Hi gents,Could you please confirm what are the maxim length per home run, the maximum number of PDU per home run, and the maximum length total on a QS bus, using the Lutron cable GRX-346S (0.75mm2)?On that spec p.19/23 it says 2000ft using the 4mm2 cable, but what about using the GRX-346S: https://www.lutron.com/TechnicalDocu...stem_Rules.pdf On that spec p.12, it says 2000ft max total, and 1000ft – 15PDU max per home run, but it does not say using which cable: https://www.lutron.com/TechnicalDocu...Guidelines.pdf Kind regards, Don

  2. #2
    Authorized Lutron Contributor
    Join Date
    Sep 2018
    Posts
    228
    Thank you for your post donafcna.

    The max about of PDUs per home run is 15. That 15 PDUs will be for any wire used on the QS link. Gauge of wire comes into account when we are dealing with Shades. For those lengths please see here https://www.lutron.com/TechnicalDocu...ry/3684280.pdf. Hope this helps!

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