Post count: 367

    A bistable relais doesn’t need power to hold its state, monostable do. And some of them will even get the power from the limited bus supply.
    Also monostable relais will flicker on bus- or power reset or even not switch to the last state. So NO to switching actuators with monostable relais.
    Most blind/curtain actuators do have monostable relais, but they need power only for a short time. So this will not be a problem.