Victron Energy

Victron Filax 2 transfer switch CE 230V/50Hz-240V/60Hz

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Victron Energy's Filax ultra-fast transfer switch (MPN SDFI0000000) is designed to transfer important or sensitive loads such as computers, industrial control equipment or modern consumer electronics from one AC power source to another. The main power source is typically the mains, a generator or a shore connection. An inverter is usually used as an alternative source. With its switching time of less than 20 milliseconds, even sensitive loads continue to work without interruption.

The Filax is not designed to supply household appliances with high power consumption, such as washing machines or electric motors.

Gaping switching function

The Filax is a transfer switch with a gapping (not bridging) switching function. The maximum time for switching the loads is 16 ms. The load is normally powered from the main power source and is switched to the alternate source in the following cases:

  • The voltage of the main power source falls below the threshold.
  • The frequency of the main power source falls below the low-frequency threshold or exceeds the high-frequency threshold.

Switching back from the alternate power source to the main power source occurs when the main power source voltage and frequency are within the switch-back limits for 30 seconds.

Technical specifications

  • Max current: 16A
  • Max. time for switching: 16 ms
  • Switching delay for switching back: 30 seconds
  • Operating temperature range: -20°C - +50°C
  • Humidity (non-condensing): Max. 95%
  • Protection class: IP65
  • Weight: 0.8kg
  • Dimensions: 120 x 255 x 75mm


  • Install the Filax in a dry and well-ventilated area.
  • The input cables from the generator / main power supply and the output cables to the devices should be connected according to the wiring diagram.
  • When connecting a load with less than 850 watts, the jumpers must be removed.
  • The frequency (50 Hz or 60 Hz) is set using a bypass. If the bypass is not set for frequency, the voltage switching thresholds will be incorrect.
  • Both inputs must be protected against current values ​​in excess of 16 amperes.
  • The front cover of the case is attached using the four screws provided.
  • The Filax is now ready for use.

Scope of delivery:

1x Victron Energy Filax transfer switch SDFI0000000
4x mounting screws
1x user manual