Dimmer 2 overtemperatured with 2 halogen r7s 100W

  • I've exchanged a normal dimmer with a Shelly Dimmer2.

    Connected without neutral and with a standard on/off switch.

    The Dimmer 2 overheat very quickly and can only be used on 32% and max 76W.

    Dimmer is calibrated on leadingedge. (Same problem on trailing edge)

    Is 2x100Watt halogen r7s to much for this dimmer?

    Code
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    Edited once, last by ronshell ().

  • ronshell

    Changed the title of the thread from “Dimmer 2 overheated with 2 halogen r7s 100W” to “Dimmer 2 overtemperatured with 2 halogen r7s 100W”.
  • Teoretically it should handle 200W.
    I suspect the lamps are connected in series, could you please check it?
    They should be connected in parallel.
    As a side note, R7S LED lamps already exist.

    Edited once, last by BSoft ().

  • Overheat at 76W with a pure resistive load is not normal and i would expect dimming at near 0%.

    If i was you i consider returning the shelly.

    Until then, check with only one lamp (calibrate -> reboot -> calibrate), and previous firmwares.

    Edited once, last by BSoft ().