time switch, digital, Expert 4 channels, year, 24V 6MW Time switch 7LF4 Expert and Expert GPS with year program and many other functions. The digital time switches 7LF4 Expert and Expert GPS from Siemens are ideal when switching times for electrical devices can be planned for the long term. The year program allows you to specify switching times in line with public holidays, holiday periods and individual dates or events for an entire year in advance. Key features of the digital time switch from Siemens: 1. Models to meet requirements for a range of fields: 4-channel version with 336 memory locations (7LF4 Expert), 1-channel version with 84 and 2-channel version with 42 memory locations per channel (7LF4 Expert GPS). 2. User-friendly menu for local programming and easy programming on the PC with data keys. 3. Secure data receipt with backup battery and PIN code block. 4. Easy addition of astro function to 7LF4 Expert GPS with optional GPS receiver. www.siemens.com/lowvoltage. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.