Theben SELEKTA 172 top3 digital time switch with LCD display
SELEKTA 172 top3 - Image 2
SELEKTA 172 top3 - Image 3

SELEKTA 172 top3

Item no.: 1720130

The SELEKTA 172 top3 is a precise astronomical time switch with a weekly program and 2 channels, designed for professional lighting and system control. Programming is simple via app, with secure transfer through the optional Bluetooth OBELISK top3 dongle, ensuring maximum protection against manipulation.

Fully compatible with top2 devices, it offers advanced functions including 3 special annual programs, custom twilight ranges with adjustable offsets, and an astro-pulse mode. Two external inputs provide additional flexibility for integration.

With 84 memory locations, a 10-year power reserve, and support for a wide range of lamp types including LEDs up to 600 W, the SELEKTA 172 top3 combines long-term reliability with modern, user-friendly control.


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SELEKTA 172 top3

SELEKTA 172 top3

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Function description

  • Astronomical time switch with weekly program
  • 2 channels
  • Programming by app possible
  • Safe transfer via optional Bluetooth Low Energy OBELISK top3
  • Maximum manipulation security, time switch programs can only be transferred from the app to the time switch when the Bluetooth OBELISK top3 is plugged into the time switch
  • 100% compatible with top2 (When transferring the switching programs via OBELISK to the PC, the OBELISK software as of V3.8.3.4 must be installed)
  • 3 special programs (small annual program)
  • 3 custom twilight ranges plus adjustable offset (sunset, twilight, darkness)
  • Astro-pulse
  • 2 external inputs

Technical data

Parameter Specification
Operating voltage 230 V AC
Frequency 50 – 60 Hz
Width 2 modules
Installation type DIN rail
Type of contact Changeover contact
Switching output Phase-independent
Opening width < 3 mm (µ)
Program Weekly program, Astronomical program
Program functions ON-OFF, Pulse
Number of channels 2
External inputs 2
Number of memory locations 84
Power reserve 10 years
Switching capacity at 250 V AC, cos φ = 1 16 A
Switching capacity at 250 V AC, cos φ = 0.6 10 A
Incandescent/halogen lamp load 2600 W
Energy saving lamps 1100 W
LED lamp < 2 W 50 W
LED lamp 2–8 W 600 W
LED lamp > 8 W 600 W
Fluorescent lamp load (conventional) not corrected 2600 VA
Fluorescent lamp load (conventional) series-corrected 2600 VA
Inrush current max. 800 A / 200 µs
Switching capacity min. ca. 10 mA
Shortest switching times 1 min
Time accuracy at 25 °C typical ± 0.25 s/day (quartz)
Time basis Quartz
Stand-by consumption ~0.4 W
Type of connection DuoFix spring terminals
Display LCD
Keyboards 4 touch buttons
Housing and insulation material High-temperature resistant, self-extinguishing thermoplastic
Type of protection IP 20
Protection class II according to EN 60 730-1
Ambient temperature -30°C to 55°C

Downloads

Features Overview PDF Features Overview
Instruction Manual PDF Instruction Manual
UserHandbook PDF UserHandbook

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