This schematic is a typical simple 230v AC Chain Actuator installation. The chain actuators are connected in parallel to a day to day switch. The majority of AC chain or linear drive actuators have a 4 core cable, L1, L2, N (comm) + E. L1 circuit drives the actuator in one direction and the L2 circuit in the opposite direction. A simple system such as this as no requirement for a control panel so both the actuators radial and the mains power are both terminated in the day to day switch.
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