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Immersion & General Purpose Timeswitches

TS900N 24 Hour Immersion Heater Time Controller

Specially designed for installation with both new and existing immersion heater systems. Up to 24 ON & OFF programmes (additional pins required) plus self-cancelling override for instant ON/OFF switching.

  • 13A (3kW) loading.
  • For total control of your hot water.
  • Switches ON and OFF at preset times.
  • Easy to use setting pins.
  • 30 minute minimum switching interval which can be increased in 15 minute steps.
  • Manual override until next programme change.
  • Bottom or rear entry for cable.
Ts900n catalog
  • Energy Saving 2015
  • LEDs up to 80W
  • 3 Year Guarantee


Timer Mode 24 Hour
Setting Type Pin
Operating Voltage 230V AC
Switch Rating 230V AC 13A Resistive (3kW), Inductive 5A
Stand-alone LED Rating 80W
Operating Temperature -10ºC to 40ºC
Cable Connection 1.5 – 2.5mm2 Flexible Cable
EC Directives Conforms to Latest Directives
Dimensions Width 74, Height 121.5, Depth 41.6

TS900B can be used with up to 100W of fluorescent or low energy lighting. Can be used with filament lighting up to 400W. Cannot be used with discharge lighting (e.g. SON and Metal Halide).

The LED switching capabilities of this product can be increased up to 200W by the addition of the Timeguard ZV900 Automatic Switch Load Controller. The ZV900 is sold separately.

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