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Immersion & General Purpose Timeswitches

TGBT4N 4 hour Electronic Boost Timer

BoostMaster Countdown Switches now added to the range providing timed output. Automatic timed countdown selections for up to 4 hours using a simple push button, making them completely effortless.

  • Automatic timer countdown selection for up to 4 hours – 13A (3kW) loading.
  • Typical applications such as immersion heaters, room heaters, towel rails and lighting.
  • Fits a standard flush or surface mount BS wall box min. 25mm deep.
Tgbt4n catalog 1
  • Energy Saving 2015
  • LEDs up to 100W
  • 3 Year Guarantee


Timer Mode Boost
Contact Type Normally open
Setting Type Digital
Operating Voltage 230V 50Hz
Switch Rating 230V AC 13A (3kW) resistive, 1000W Filament lighting, 500W Fluorescent lighting, 100W CFL or LED lighting.
Operating Temperature 0°C to 45°C
Boost Times ¼ hour, ½ hour, 1, 2 and 4 hours
Wall Box Minimum depth 25mm
Dimensions (mm) Width 85, Height 85, Depth 31

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