Specialist in Climate Control Since 1945

Switchbox SLR On/Off

Order code:


  • Steel box with cylinder lock
  • 230V supply group per device.
  • Digital time switch with weekly programme.
  • Day and night temperature control.
  • Holiday switch to allow devices to operate at the night-time temperature over longer periods.
  • Overtime timer from 0-6 hours
  • Infra line on/off selector per device.
  • Illuminated reset button per device to indicate and reset a burner trip
  • A black bulb temperature sensor supplied separately.

Controls/to be applied for:

Infra Line

Heat only where needed The Mark INFRA offers the option of heating without displacing air. In addition, heat reaches...

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