Push Button Coupler, input 4 x 230V (10m), flexible configurable, sequencer, macros, DT8 The DALI MC4L is designed for back box installation or integration in protection class II devices, with proper cable relief required for installation. The DALI MC4L-HS is suitable for DIN rail mounting, ensuring protection against electric shock with an appropriate enclosure. Wiring must be a fixed installation in a dry, clean environment, performed only by qualified personnel when no voltage is applied. National electrical installation regulations must be followed. The DALI MC4L/MC4L-HS is powered by the DALI line, eliminating the need for a separate power supply, and the connection to the DALI line is polarity-free. The DALI line should be wired using standard low voltage installation materials and can handle mains voltage, protecting the device from incorrect wiring. The DALI line's wiring topology can be configured as a line, tree, or star. Switching inputs are designed for use with line voltage and are galvanically separated from the DALI line. Line voltage must be appropriately fused based on the wire size, with only one wire per terminal.