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Immersion & General Purpose Timeswitches

TGBD4 4 Hour Electronic Digital Boost Timer

BoostMaster Digital Countdown Switches now added to the range providing timed output at the single press of a button. Automatic timed countdown selections of up to 4 hours with clear LED output status. Simply replace existing single gang connection units or fixed appliance outlets.

  • Automatic timer countdown selection of up to 4 hours.
  • Ideal for immersion heaters, room heaters, towel rails and lighting. 
  • Replaces existing single gang connection unit fixed appliance outlets. 
  • Multiple on times can be selected and viewed via the clear LED output display panel. 
  • Easy push button selection. 
  • Fits a standard flush or surface mount BS wall box.
  • Energy Saving 2015
  • LEDs up to 200W
  • 3 Year Guarantee


Operating Voltage 230V AC 50Hz
Operating Temperature 0ºC to +45ºC
Earth Class Class II
Contact Type Normally Open
Timer Mode Boost (from 30 minutes to 4 hours with 30 minute increments in between)
Switch Rating 13A (3kW) Resistive, 1000W Filament Lighting, 500W Fluorescent Lighting, 200W LED Lighting, 100W CFL Lighting
Wall Box Minimum depth 25mm
EC Directives Conforms to Latest Directives
Boost Button illumination Illuminates when connected to mains power. (Can be switched on/off via the dip switch at the back of the unit)
Fused No (Unfused)
Dimensions (mm) Height 85, Width 85, Depth 36

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