timeclock

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  1. C

    Twin Immersion Thermostats

    Hi again, I tend not to get involved with heating systems, but I have just been on a site where they have had a new Hot water tank installed with 2x immersion thermostat heaters in the tank, each of these is rated at 3Kw. Each has a separate feed with its own spur. There is no economy 7 or...
    • chloebear
    • Thread
    • aus control electricians' talk immersion termostat thermostats these timeclock timers twin water
    • Replies: 5
    • Forum: Australia
  2. E

    Timeclock Tripping RCD

    I have a 6A C Type RCBO feeding a Horstmann 20A Timeclock and the switched-line operating AC1 on a 4P 24A contactor (NO). There are three lighting circuits going into the contactor, all fed from individual 6A B Type MCBs (on the RCD side of the DB). Why should the RCD sometimes trip when the...
    • earthboy
    • Thread
    • circuits contactor electricians' talk lighting rcd switch timeclock tripping tripping rcd
    • Replies: 5
    • Forum: Talk Electrician Forum

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