Set 45 Voltage Free Contact


Perfect for synchronising switch on times of indoor and outdoor lighting


The Set 45 Voltage Free Contact Time Switch can automatically adjust itself for Daylight Saving Time (BST/GMT) and leap year adjustments with up to 10 years of battery backup


The Astro Time Switch incorporates the latest microcontroller technology and is designed to have a high level of immunity.

The perfect time switch for the control and synchronising of display, amenity, security, sign, indoor lighting and outdoor lighting.

Features & Benefits

  • Voltage Free Contact.
  • Can be used where it is difficult to install a photocell control.
  • Applications in internal lighting.
  • 7-day programmability incorporating Dusk & Dawn Astronomical tracking set points with traditional time-based events.
  • Channel 1 has solar based and 8 time-based switch points – Channel 2 has 12 time-based switch points.
  • Automatic leap year adjustment.
  • Local and remote load switch override feature.
  • Up to 10 year battery backup.
  • Universal power supply 85 to 265 VAC 50/60 Hz.
  • Outputs are protected by 132 Joule M.
  • Relay Assisted Triac (RAT) switch – reliable switching of reactive loads such as street lighting.
  • Capable of switching reactive loads up to 10 A on each channel.
  • Mountable on a 35mm symmetric DIN Rail for ease of installation.
  • Latitude and Longitude of location can be programmed by the user.
  • Security code program protection and tamper proof cover.
  • Illuminated keypad and backlit LCD display.

Technical Specifications

Dimensions90mm x 70 mm x 73mm HxWxD (4 modules wide as per DIN 43880)
MountingSymmetric 35 mm DIN Rail
Warranty3 years standard
Mains Supply85 to 265 Volts AC - 50/60 Hz
Output2 channels - Relay Assisted Triac (RAT) 10 amp rated supply connected (20 amp Device Max)
Connections4mm² max conductor size (12 AWG)
Standards Compliance & CertificationsMeets the essential requirements of Directive 2004/108/EC forElectromagnetic Compatibility

Meets the requirements of the Low Voltage Directive 2006/95/EC
Operating Temperature3° C to +55° C
37.4° F to +131° F
Enclosure ProtectionIP20 , Flame Retardant Plastic with transparent protective cover
Battery Backup10 years @ 20° C - Internal lithium battery
Manual OverideManual overide button (MAN key)
Momentary dry contact teminals
(Normally Open)
Time Accuracy± 1 second per day @20˚C
Product TypeElectronic 1.Y.T., Software Class A. Not suitable for controlling loads where
secure disconnection during conditions of mains abnormality is essential to safety.