Finder 12A200240000 Digital Astronomical Time Switch, 2-Channel, Daily/Weekly/Astro/Holiday/Pulse Programs, DIN Rail, 230 V AC, 16 A

Managing lighting, heating, or other electrical loads on a schedule can be complex, especially when you need to align with sunrise and sunset or handle temporary changes. The Finder 12A200240000 digital astronomical time switch solves this by offering precise, automated control with astronomical, weekly, daily, holiday, and pulse programming in a compact DIN rail unit.

Who is it for

This time switch is ideal for electricians, facility managers, and building automation professionals who need reliable, programmable switching for lighting, signage, irrigation, or HVAC equipment in residential, commercial, or industrial settings.

Main features

• Two independent changeover contacts (2 CO) for controlling separate circuits.
• Astronomical function automatically adjusts switching times based on sunrise/sunset for your location.
• Weekly and daily programs for fixed schedules, plus holiday mode to suspend operation on selected dates.
• Pulse function for momentary switching (e.g., bell or staircase lighting).
• Manual override and PIN protection to prevent unauthorized changes.
• LCD display for clear programming and status indication.
• Automatic summer/winter time adjustment.
• Power reserve up to 6 years via lithium battery, retaining settings during power outages.
• DIN rail mounting (2 modules wide) for easy installation in distribution boards.

Specifications

• Supply voltage: 230 V AC (50/60 Hz)
• Contact rating: 16 A @ 250 V AC (resistive load)
• Minimum switching interval: 1 minute
• Time accuracy: ±0.5 s/day at 25 °C
• Operating temperature: -20 to +50 °C
• Protection rating: IP20 (terminals), IP40 (front panel)
• Memory: EEPROM
• External input: Yes (for external button or switch)

Tips

For astronomical programming, set your geographic coordinates and time zone correctly to ensure accurate sunrise/sunset times. Use the holiday function to temporarily disable switching during vacations or building closures without deleting your regular schedule.