Please note that we will be closed on Friday the 26th of February until Sunday the 28th of February. We will not be trading during this time and cannot supply any goods during stock take. Normal business hours will commence on Monday the 1st of March 2021.

GIC Astronomical Time Switch Astro And Mini


  • Description
  • Specifications
  • Other parts
  • Documents


GIC manufactures Time Switches in both analog and digital versions that perform the function of controlling the opening and closing of electrical circuits based on a predetermined schedule. Astronomical time switches are programmed to control various loads or electronic utilities routinely according to sunrise and sunset times are also available.

  • Dynamic and Accurate control based on Astronomical Mathematics
  • Sunrise / Sunset or Twilight rise / set trigger
  • Yearly programming with Season mode, DST, Offset, OFF hours, Weekly Off features
  • Protection against Under Voltage and Over Voltage
  • Alternate Mode with Auto Load Changeover feature
  • Active Phase selection
  • Manual override facility
  • Single phase and Three phase versions
  • Modbus Communication
  • User friendly software for device configuration



Supply voltage: 110 - 240V AC / DC

Supply variation: -20% to +10%

Frequency: 50/60 Hz

Programming: Based on Latitude/Longitude precise to the minute with time-zone

Trigger modes: Sunrise/Sunset or Twilight Rise/Set

Offset: 1 min to 23 hr 59 minutes (Programmable)

OFF hours: Programmable

Weekly off: User Defined

Alternate mode: Yes

Seasonal mode: 3

DST: User Defined

Number of operating Modes: 3


Description of modes

  • AUTO - As per user defined program settings
  • ON AUTO - Instant ON up to next Auto Event 
  • AUTO OFF - Instant OFF up to next Auto Event

Minimum switching Time: 1 min (1s for Pulse)

Display: Backlit LCD

Under voltage trip level: 0 - 220 V (Settable)

Over voltage trip level: 130 - 330 V (Settable)

Trip time for UV/OV: 2 - 5 sec

Recovery time: 10 - 20 sec

Clock accuracy: ± 1 s/day max. over the Operating Temperature range

Power reserve from factory: 6 Years



Relay output: 3 NO

Contact rating: 8A @ 240 VAC & 5A @ 30 VDC (Resistive)

Electrical life:  1x10

Mechanical life: 1x10


Utilization category

AC - 15: Rated Voltage (Ue): 120/240 V, Rated Current (Ie): 3/1.5 A

DC - 13: Rated Voltage (Ue): 24/125/250 V, Rated Current (Ie): 2.0/0.22/0.11 A



Operating temperature: -10° C to +55° C

Storage temperature: -10° C to +60° C

Humidity (Non Condensing): 95% (Rh)

Enclosure: Flame Retardant UL94-V0

Dimension (W x H x D): 36 X 90 X 65 mm

Weight (unpacked) Approx.: 190 g

Mounting: Base / DIN rail

Degree of protection: IP 20 for Terminals, IP 40 for Enclosure


Certification / Standard


  • Harmonic Current Emissions IEC 61000-3-2
  • ESD IEC 61000-4-2
  • Radiated Susceptibility IEC 61000-4-3
  • Electrical Fast Transients IEC 61000-4-4
  • Surges IEC 61000-4-5
  • Conducted Susceptibility IEC 61000-4-6
  • Voltage Dips & Interruptions (AC) IEC 61000-4-11
  • Conducted Emission CISPR 14-1
  • Radiated Emission CISPR 14-1


  • Cold Heat IEC 60068-2-1
  • Dry Heat IEC 60068-2-2
  • Vibration IEC 60068-2-6
  • Repetitive Shock IEC 60068-2-27
  • Non-Repetitive Shock IEC 60068-2-27

Other parts


rubicon group

Net Orders Checkout

Item Price Qty Total
Subtotal R 0.00

Shipping Address

Shipping Methods