Max. Efficiency 98.5% European Efficiency 98.0% Input Max. Input Voltage 1 1,100 V Max. Current per MPPT 30 A Max. Current per Input 20 A Max. Short Circuit Current per MPPT 40 A Start Voltage 200 V MPPT Operating Voltage Range 2 200 V ~ 1,000 V Rated Input Voltage 600 V Number of Inputs 8 Number of MPP Trackers 4 Output Rated AC Active Power 50,000 W Max. AC Apparent Power 55,000 VA Max. AC Active Power (cosφ=1) 55,000 W Rated Output Voltage 400 Vac / 480 Vac, 3W+(N) + PE Rated AC Grid Frequency 50 Hz / 60 Hz Rated Output Current 72.2 A @ 400Vac, 60.1 A @ 480Vac Max. Output Current 79.8 A @ 400Vac, 66.5 A @ 480Vac Adjustable Power Factor Range 0.8 LG ... 0.8 LD Max. Total Harmonic Distortion <3% Protection Input-side Disconnection Device Yes Anti-islanding Protection Yes AC Overcurrent Protection Yes DC Reverse-polarity Protection Yes PV-array String Fault Monitoring Yes DC Surge Arrester Type II AC Surge Arrester Type II DC Insulation Resistance Detection Yes Residual Current Monitoring Unit Yes Arc Fault Protection Yes Ripple Receiver Control Yes Integrated PID Recovery 3 Yes Communication Display LED Indicators, Bluetooth + APP RS485 Yes Smart Dongle WLAN/Ethernet via Smart Dongle-WLAN-FE (Optional) 4G / 3G / 2G via Smart Dongle-4G (Optional) Monitoring BUS (MBUS) Yes (Isolation Transformer required) Optimizer Compatibility DC MBUS Compatible Optimizer MERC-1100/1300W-P General Data Dimensions (W x H x D) 640 x 530 x 270 mm (25.2 x 20.9 x 10.6 inch) Weight (with mounting plate) 49 kg (108.1 lb) Operating Temperature Range -25°C ~ 60°C (-13°F ~ 140°F) Cooling Method Smart Air Cooling Max. Operating Altitude 4,000 m (13,123 ft.) Relative Humidity 0% RH ~ 100% RH DC Connector Amphenol HH4 AC Connector Waterproof Connector + OT/DT Terminal Protection Degree IP 66 Topology Transformerless Nighttime Power Consumption ≤ 5.5W