TMAST Lovato MODULAR TIMER WITH ASTRONOMICAL CLOCK

Why Choose the Lovato TMAST Astronomical Time Relay?

The Lovato TMAST is a compact and advanced astronomical time relay with integrated real-time clock (RTC) designed for automatic control of electrical loads according to calculated sunrise and sunset times. As part of the Lovato modular time relay range, it automatically calculates astronomical switching times from the configured geographical location, making it ideal for lighting and other applications that need to operate between sunset and sunrise.

The TMAST incorporates NFC connectivity, allowing parameters to be programmed using a compatible smartphone or tablet and the LOVATO NFC App. Date, time and geographical coordinates can be acquired directly from the mobile device during configuration, while automatic daylight-saving-time management reduces the need for seasonal manual adjustments.

With a 220–240 V AC auxiliary supply, one delayed normally open relay output and a compact single-module DIN rail housing, the TMAST provides a modern solution for astronomical load control. An integrated RTC with backup battery maintains date and time when the supply is absent, while zero-crossing load switching technology supports reliable operation in commercial, industrial and building-service applications.

Key Advantages

• Automatically calculates sunrise and sunset times from configured geographical coordinates.
• Integrated NFC connectivity enables convenient programming using the LOVATO NFC App.
• Automatically acquires date, time, latitude and longitude from the smartphone used for configuration.
• Integrated RTC with backup battery maintains date and time during loss of supply.
• Automatic daylight-saving-time management according to the configured time zone.
• Compact single-module DIN rail design saves valuable panel space.

Key Features

• Lovato TMAST astronomical time relay.
• 220–240 V AC rated auxiliary supply voltage.
• 50/60 Hz rated frequency.
• One delayed normally open relay output.
• Automatic calculation of sunrise and sunset times.
• NFC programming using the LOVATO NFC App for Android and iOS devices.
• Integrated real-time clock with backup battery.
• Zero-crossing load switching technology.
• 0.1 s to 999 days timing range.
• Compact 1-module housing for 35 mm DIN rail mounting.

Automatic Astronomical Control for Lighting and Building Systems

Astronomical time relays such as the Lovato TMAST automatically determine sunrise and sunset times according to the geographical coordinates programmed into the device. This allows connected loads to be switched according to natural daylight conditions without relying on an external light sensor or requiring fixed switching times to be manually adjusted as daylight hours change throughout the year.

The TMAST simplifies commissioning through NFC programming with the LOVATO NFC App, which can transfer date, time and geographical coordinates from a compatible smartphone or tablet. Its integrated real-time clock, backup battery, automatic daylight-saving-time management and programmable astronomical functions make it particularly effective for automated lighting and building-service installations.

Typical Applications

• Street and external lighting control.
• Car park and security lighting systems.
• Shopfront and illuminated signage control.
• Commercial and industrial outdoor lighting.
• Building automation and facility management systems.
• Electrical loads requiring automatic sunset-to-sunrise operation.