DIN rail twilight switch MEMO AST2

Astronomical twilight switch for the management of electric loads from sunset to sunrise time, calculated according to the set geographical area. It’s particularly suitable for the management of shop lighting and sign lighting in general. The NFC interface allows the coupling with smartphone to transfer the programs made on the smartphone thanks to the dedicated app. The keypad lock function by password prevents unauthorised people from doing setting modifications: this is useful for installations in public places. The front panel on the instrument allows the replacement of the backup battery once discharged. Power supply - 230V AC - 50/60Hz Installation - on DIN rail Display - LCD with backlight Number of events - 120 Programming resolution - 1 minute Number of relays - 2 automatic time change (DST) - yes (can be programmed) Dimensions - 2 DIN modules Interface - NFC Time switches to manage electric utilities over time between sunset and sunrise time calculated according to the set geographical area. Particularly suitable to light shops, luminous signs, fountains, etc. The NFC interface allows the coupling with smartphones and tablets to transfer the programs made on the smartphone thanks to the dedicated app. The rear cover of the instrument allows the replacement of the depleted battery. • Power supply: 230 V AC 50/60 Hz • Versions: - Memo AST1 with 1 programmable relay output (see programs) - Memo AST2 with 2 programmable relay outputs (see programs) • Manual override of the relay (temporary or permanent) • Automatic summer time update • Correction of the calculated sunrise and sunset time: ± 120 minutes • Battery life: 5 years (replaceable)