230V Timer Relay Recommendation for Automating Façade Lighting with 5 Lamps

The discussion addresses automating façade lighting with five lamps powered at 230V, focusing on time-controlled switching. The original poster seeks a timer relay compatible with 230V supply rather than common 12V Arduino modules. Suggested solutions include dedicated 230V timer relays such as the Zamel ZCM11 and digital electronic timers suitable for mounting in switchboards or surface-mounted boxes. Considerations include installation constraints, preferring devices integrated into lamp enclosures or external boxes rather than centralized switchboards. Alternatives discussed involve astronomical clocks that adjust for sunrise and sunset times, with wireless modules for remote control, though cost concerns arise for small installations. Motion detectors combined with light sensors are proposed for presence-based control, but limited detection range and complexity of retrofitting all lamps are drawbacks. The lamps’ total power is under 50W, and the desired operation period is from dusk until approximately 22:00, varying seasonally. Mechanical plug-in timers are also mentioned as a simple option. An Elmes controller paired with a programmable clock and miniature transmitters (MTX or MTX2) is suggested for remote switching via short-circuiting control inputs. Overall, solutions balance between fixed-time relays, astronomical timers, sensor-based automation, and remote control modules, considering installation space, power requirements, and cost.
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