1000W Inverter

Fangpusun 1000w Split Phase Power Inverter

Follow this procedure to connect the battery cables to the DC input terminals on the Prosine Inverter. Your cables should be as short as possible (ideally, less than 10 ft./3 m) and large enough to handle the required current, in accordance with the electrical codes or regulations applicable to your installation. Cables that are not an adequate gauge (too narrow) or are too long will cause decreased 1kva pure sine wave inverter performance such as poor surge capability and frequent low input voltage warnings and shutdowns. These low input voltage warnings are due to DC voltage drop across the cables from the inverter to the batteries. The longer and narrower these cables, the greater the voltage drop. Table 3 shows voltage drop per foot of cable, at various power output levels. For example, if the 1800 Inverter is 10 ft. from your battery, is operating at 2000 watts, and is improperly connected with #4AWG wire, then you can expect a voltage drop per foot of 0.0506 V. Total cable length is actually 20 ft., not 10 ft., since the cable length is measured from the battery to the 24 volt sine wave inverter and back. Therefore, multiply 0.0506 V by 20 to get a total voltage drop of 1.012 V. If your battery voltage is only 11.2 VDC, then the actual voltage at the dc ac sine wave inverteris 10.188 (11.2 V–1.012 V) because of this significant voltage drop. The Prosine Inverter will either be in low input voltage warning or shutdown in such a condition. In high current draw and surge situations, the unit may go into low input voltage shutdown if the cables are too small and too long. Increasing your DC cable size will help improve the situation. With cables sized correctly, and using a #0 AWG cable, your voltage drop will be 0.02 VDC (multiplied by 20, you get a total voltage drop of 0.4 VDC). This illustrates that at 10 ft. away from the battery and with large cables, you can expect voltage drop. Again, try to keep cable length to a minimum and use the maximum gauge cable possible. Xantrex recommends the following cables for optimum inverter performance (apply to both 120 V and 230 V versions). 1000/12: #0 AWG or 55 mm2 1000/24: #6 AWG or 13 mm2

Also, use only high quality copper wiring and keep cable length short, a maximum of 3–6 ft.

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