SMA Sunny Boy SWR1800U SBD Inverter with no display Features UL 1741 Listed for grid interactive inverters 5-year comprehensive warranty standard Rugged NEMA 4X stainless stell enclousure standard Exceptional reliability and energy capture ratio Easy to install three-point mounting system Comprehensive communications and data collection options SMA's modular string inverter design is expandable to virtually any size system No DC Distribution necessary System Diagnosis and Monitoring via Powerline Extended Temperature Range: 25 C to 60 C Protection Class IP65 Stainless Steel Case for Outside Installation Equipped with MC and AC connectors Specifications Inverter Technology: Real sine-wave, current source, high frequency PWM AC Input Voltage: 106 - 132 (120 VAC) AC Input Frequency: 59.3 - 60.5 (60Hz) (50Hz also available) DC Input Voltage: 156 - 400 VDC Peak Power Tracking Voltage: 156 - 350 VDC, dependent on available line voltage Maximum Array Input Power: 2200W (DC @ STC) Maximum AC Power Output: 1800W Current THD: < 4% Power Factor: Unity Peak Inverter Efficiency: 93.6% Cooling: Convection cooling (no fan). Optional fan (Sunny Breeze) available PV Start Voltage: 180 VDC Maximum AC Output Current: 15.0A Maximum DC Input Current: 12.0A DC Voltage Ripple: < 5% Power Consumption: 0.25W nighttime, < 7W standby Ambient Temperature Rating: 45C Enclosure: NEMA 4X (iP65) stainless steel Dimensions (WxHxD): 17.10" x 11.60" x 8.40" / 434 x 295 x 214 mm Weight: 59.4 lbs / 27 kg Compliance: United States: UL 1741, E210376, UL 1998, IEEE 519, IEEE 929, ANSI C62.41 C1 & C3, FCC part 15 A & B International: DIN EN50082 Part 1, 61000-32, 50081, 50014, 600055 Part 2, 55011 Group 1 Class B, 50178, 60146 Part 1-1