AlphaRex3 digital time switches (D21, D22, D21s, D21 astro, D22 astro, DY21, DY22) are 2-module, text-guided programmable time switches for 230 V 50/60 Hz with 1 or 2 changeover output channels, weekly programs, and on astro and DY versions sunrise/sunset switching and yearly/special programs. They can be programmed on the unit or from a PC via data key and software.

Key features

• Daily and weekly time switch
• Quick and easy programming by selecting day blocks (Mon-Sun, Mon-Fri or Sat-Sun)
• Programming with precision to the second
• Switch times visible in weekly overview on display
• Text guidance: plain-text prompts and flashing active function
• display and button light
• Selectable language (German, English, French, Italian, Spanish, Dutch, Portuguese, Swedish, Norwegian, Finnish, Danish, Polish, Czech, Russian, Turkish)
• Weekly programs with predefined day blocks (Mon-Sun, Mon-Fri, Sat-Sun) or custom day blocks
• Yearly programs and priority special programs on DY21 / DY22
• Astro function on D21 astro, D22 astro, DY21, DY22: location or coordinate based, offset up to +/-120 min or +/-12°
• Holiday program, PIN code, 1 h test, operating hours counter (65,535 h), random function +/-15 min
• Cycle (pulse) function 1 s to 1 h 59 min 59 s
• Data key and PC programming (AlphaSoft software, data transfer device Cat.No 4128 73)
• Mains-synchronous operation option
• channel-switching function on 2-channel versions

Applications

• Time-based switching of lighting and electrical loads
• Time-based switching of lighting and other electrical loads
• Astronomical (sunrise/sunset) lighting control

Specifications

Switching Programme: Daily and weekly | Programming Precision: To the second | Nominal Voltage: 230 V, 50/60 Hz | Number of Modules: 2 modules of 17.5 mm each | Zero-Crossing Switching: Yes | Switching Capacity - Ohmic (250 V AC, cos φ = 1): 16 A | Switching Capacity - Inductive (230 V AC, cos φ = 0.6): 10 A | Switching Capacity - Incandescent Lamp Load: 2000 W | Switching Capacity - Fluorescent Lamp, Series Compensated: 2000 VA | Switching Capacity - Energy-Saving Lamp: 1000 W | Cycle Function (pulse time): min. 1 s, max. 1 h 59 min 59 s | Clock Precision (typical): ±0.1 s/day (can be set to mains-synchronous operation) | Running Reserve: 5 years | Shortest Switching Step: 1 s | Operating Temperature: -20 °C to +55 °C | Degree of Protection: IP20 | Control Input Switch-off Delay Range: 0 s to 23 h 59 min 59 s (D21s, D21 astro, DY21) | Astro Offset: Time offset up to +/-120 min or angle offset up to +/-12° 00'

Packing: Pack of 1