Sistem ini tidak terkoneksi dengan jaringan listrik yang ada. Karena bersifat mandiri, maka diperlukan baterai untuk menyimpan tenaga listrik yang dihasilkan oleh PV. Sistem Off-Grid biasanya dipakai di daerah yg tdk ada jaringan listrik atau energi listriknya kurang. Jika diaplikasikan di rumah yang sudah ada jaringan listrik, maka perlu dilakukan modifikasi untuk jaringan listrik di rumah. Sistem ini juga bisa digunakan untuk lampu penerangan jalan, lampu taman, dsb. Specifications: Model : 500W Rated Voltage : 12VDC, Battery Type : Pb-Acid, Rated Capacity : > 100AH * PV Input ; - Max. Open Circuit Voltage : 60Vdc - Optimum Operating Voltage (Vmp) : 16-48Vdc - MPPT Max. Charging Efficiency (DC/DC Conversion Efficiency) : > 98% - Max. Charging Current : 50A, Recommended Electrode Plate Power : 750W * Main Input : - Bypass Voltage Operating Range : 0 - 264Vac for 200/220/230/240Vac - Input Voltage Range : 100V/110V/115V/120V or 200/220/230/240V -+25% - Input Frequency Range : 50/60Hz-+ 10% -+ 1Hz (5%/15%/can be set) - Max. Charging Current : 20A * Output : - Inverter Output Voltage : 100V/110V/115V/120V or 200/220/230/240V -+ 2% - Stable Output Voltage Range : 100V/110V/115V/120V or 200V/220V/230V/240V -+ 10% - Conversion Time (AC to DC) : Typical : 4 ms, maximum : 10 ms - Rated Power (W) : 500W - Power Factor : 1 * Overload Protection (Linear Load) : > 110% for 2 min (power off without mains input) > 125% for 1 min (power off without mains input) > 150% for 10 s (power off without mains input) > 180% loads, power off after 1 s > Max. Inverter Output Efficiency (Resistive Load) : > 78% * Battery Management : - Rated Battery Voltage : 12 V - Charging Current (Setting Available) : 5 - 50 A - Charging Current (Setting Available) : Lead acid- battery : 6 cells Lithium, battery : 4 cells Package Dimension (mm) W*D*H : 455 520 280 mm