Description The Spartan Power SP-IC3312 3300 Watt 12V DC to AC power inverter/charger is a low frequency inverter that has a built-in 100A charger, 50A transfer switch and comes with a two year warranty. The SP-IC3312 is great for use at home or in RV, Marine, Fleet Truck, Emergency and many other renewable energy application environments. The SP-IC3312 is packed with unique features and is one of the most advanced inverter/chargers on the market today. The Spartan Power IC Series features power factor correction, sophisticated multi-stage charging and pure sine wave output with unprecedentedly high surge capability to meet demanding power needs of inductive loads without damaging your equipment. When utility AC power cuts off (or falls out of acceptable range), the transfer relay is de-energized and the load is automatically transferred to Inverter Mode. Once the qualified AC power is restored, the relay is re-energized and the load is automatically reconnected to AC Bypass Mode. Additionally, the inverter can also be easily customized to Battery Priority via a DIP switch. This helps to extract maximum power from the battery in renewable energy systems such as solar and wind.   Part Number: SP-IC3312   Features: 3300 watt low frequency inverter 9900 watt surge for 20 seconds 300% surge capability Load & Temperature controlled cooling fan Battery Priority Selector Terminal Block Marine Coated and Protected Remote panel available Auto frequency 10ms typical transfer time between battery and AC guarantees power continuity 26W power save mode 8 battery type settings for built-in charger Two Year Warranty   Inverter Output Specifications: Continuous Output Power: 3300 Watts Surge Rating: 6600 Watts (20 Seconds) Output Waveform: Pure Sine/Same as input (Bypass Mode) Output Voltage: 100-110-120Vac Nominal Efficiency: >88% (Peak) Line Mode Efficiency: >95% Output Frequency: 50Hz /- 0.3Hz / 60Hz /- 0.3Hz Typical Transfer Time: 6-8ms, 10ms (Max) THD: min 5%   Input Specifications: Nominal Input Voltage: 12.0Vdc Minimum Start Voltage: 10.0Vdc Low Battery Alarm: 10.5Vdc-11.0Vdc Low battery Trip: 10.0Vdc-10.5Vdc High Voltage Alarm: 16.0Vdc High battery Voltage Restart: 15.5Vdc Power Save Mode Off: 48W Power Save Mode ON: 26W   Charger Specifications: Output voltage: Depends on battery Type Charger Rate: 100A Over Charge Protection Shutdown 15.7V Adjustable charge current: 0%-100% Four Stage Smart Charger   Transfer Switch Specifications: Bypass breaker rating: 50A 6-8ms, 10ms max   Dimensions: Unit Weight: 52.3 lbs. Unit Size L x W x H: 17.75″ X 8.4″ (highest point) X 12.75″ (outside of mounting rails) inches Shipping Weight: 57.2 lbs. Shipping L x W x H 23.5″ X 16.5″ X 13.0″ inches