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Phocos SI1500 Pure Sine Solar Inverter for 24/48V to 230V/50Hz

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Phocos SI1500
Pure Sine Solar Inverter 1500W, 24/48V to 110/230V

1500Wac Pure Sine Wave off-grid Inverter for 24/48Vdc to 230Vac/50Hz (opt. 110Vac/60Hz)


This new product line of inverters converts 24V-DC or 48V-DC energy from battery (within an PV Off-Grid system) into clean, stable 110V/60Hz or 230V/50Hz power, that is ideal for powering demanding home appliances. Phocos inverters are designed for high efficiency. Integrated advanced microprocessor technology combined with pure sine wave output makes them the perfect choice for use with high-end electronics and electrical equipment. Thanks to their low weight and long lifespan, the SI series is also ideal for mobile and outdoor applications (e.g. RVs, cars, and many more).

An extra advantage: THD < 3 %. As a special, high-performance benefit, Phocos True Sine Wave Inverters offer a THD (Total Harmonic Distortion) of less than 3 percent, providing top performance and superior efficiency. Overload, short circuit, DC over/under voltage, and overheating protection are standard on all models (350/700/1500W). Now, even typical home appliances (supplied from AC outlets) can be powered by small solar home systems (12-48 voltage range).

  • Input/output fully isolated for increased application flexibility
  • Input / output protected against over- and undervoltage
  • Advanced microprocessor optimizes operation processes while reducing energy consumption
  • Certified for mobile applications (RVs, cars, and others)

Please choose one of the available DC input and AC output parameters. Within the SI-1500 series are 4 different devices available, separately for specific parameter (24V/110V, 48/110V, 24V/230V, 48V/230V). see 
product data-sheet. 

Phocos SI 1500W (24/48Vdc to 110V/230Vac)

Diagram of the pure-sine-wave inverter, within an PV Off-Grid system.


Technical Data

PV Inverter Phocos SI-1500W for 24/48V to 110/230V Pure Sine Wave (PV off-grid systems)
AC Rated Power 1500 W
AC Surge Power 3000 W (6 seconds)
DC Input 24V/48V-DC
DC Input voltage range 24V system: 20.6-31.6V-DC | 48V system: 41.2-61.2V-DC
DC Shut down (low battery) 24V system: 20.6V | 48V system: 41.2V
DC Shut down (high battery) 24V system: 31.6V | 48V system: 61.2V
AC Output 110V or 230V
AC Output Socket 110V/230V Universal
Efficiency at rated V-DC (full load) 92-94% (depend on input/output parameters, for details see data-sheet)
AC Regulation +/- 3%
AC Frequency 50/60 +/-0,1%
Protections Overload, Short Circuit, DC over/under Voltage, over Temperature
Waveform True Sine Wave
Power factor cos Ø -90° to +90°
Operating temperature -20 to +40
Storage temperature -30 to +70
Max. humidity operating 90%
Safety standards Meet UL458
Cooling Load (temperature controlled fan)
Reverse polarity protection No, will result in permanent damage
Remote control unit CR-6 available optionally (not for model SI 350)
Dimensions 420 x 205 x 90 mm (4.8 kg)
Warranty 2 years producer warranty

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