Theben TR 644 top3 BLE RC Digital Time Switch, Annual Program, 2-Channel, DIN Rail 6440330

Digital time switch with annual program and Bluetooth connectivity for flexible control of lighting, heating, and other electrical loads. The TR 644 top3 BLE RC offers two potential-free changeover contacts, each capable of switching up to 16 A resistive, and supports programming via app, PC, or directly on the device. Its high-resolution backlit LCD ensures clear readability, while the 10-year power reserve maintains the program even during power outages.

Advantages

Precise scheduling with 800 memory locations and 1-second shortest switching time. Zero-cross switching extends relay life and reduces interference. Optional external antenna enables DCF 77 or GPS synchronization for exact timekeeping. PIN code protection prevents unauthorized changes.

Suitable for

• Time-based control of lighting in commercial and industrial buildings
• Heating, ventilation, and air conditioning systems
• Street lighting and outdoor advertising
• Machinery and process control in industrial applications

Key specifications

• Annual, weekly, and daily program types
• 2 changeover contacts (potential-free)
• Switching capacity: 16 A / 250 V AC resistive, 10 A inductive
• 800 memory locations
• Power reserve: 10 years (lithium battery)
• Bluetooth BLE for app programming (Theben top3)
• DIN rail mounting, 2 modules wide
• Operating temperature: -30 °C to +55 °C

Recommendations

For reliable and energy-efficient automation, pair the TR 644 top3 BLE RC with Theben's OBELISK top3 software for advanced PC programming. Use the optional GPS or DCF antenna for automatic time synchronization in large installations.