Main features: 1, the use of active power factor correction technology to significantly reduce pollution on the grid. 2, safety and electromagnetic compatibility in line with relevant international standards. 3, wide input voltage range, more suitable for use in larger regional grid voltage fluctuation. 4, a wide operating temperature range, at a temperature of -5 ° C to +45 ° C within a full output power. 5, compact design, the power density of up to 540mW/cm3. 6 hot-swap capability. 7, small size, light weight. Three performance parameters: 1, input mode: single-phase three-wire system (L / N / PE); Input voltage: Rated voltage: 220VAC fluctuation range: 176VAC ~~ 300VAC; 110 VAC/120 VAC/127 VAC grid when the system power supply: Rated input voltage: 110 VAC/120 VAC/127 VAC fluctuation range: 80 VAC to 176VAC;, input frequency: Rated frequency: 50/60Hz, fluctuation range: 45Hz ~~ 65Hz; 4, the input current: AC input voltage 110VAC/120VAC/127VAC/220VAC input current ≤ 18A; 5, inrush current: the rated input conditions, the inrush current is not greater than 150% of the rated working state input current peak (EMI capacitors current spikes caused not considered); efficiency: grid standard 220 VAC power supply efficiency ≥ 90%; to 110 VAC/120 VAC/127 VAC grid standard power supply efficiency ≥ 87%; 7, the input power factor ≥ 0.99; Output Power: 220 VAC power grid when the standard power supply: Rated output power: 2400W maximum output power: 3195W; 110 VAC/120 VAC/127 VAC grid standard power supply: Rated output power: 1500W maximum output power: 1915W; 9, output voltage: Rated output voltage: the absolute value of 48 VDC, polarity of the voltage is determined by the connection Adjustable Range (absolute): 42VDC to 58VDC continuously adjustable; 10 adjustable range : 42VDC ~ 58VDC continuously adjustable (via an external PWM signal conditioning); 11, current limiting values: input voltage 176 VAC ~ 300 VAC: (53 ± 1) A; input voltage 100 VAC ~ 176 VAC: (31 ± 1 ) A; input voltage of 80 VAC ~ 100 VAC: (20 ± 2) A; the flyback current limit, when the output voltage to 35 VDC ~ 39VDC; the 12 regulation accuracy ≤ ± 0.6%; 13, Tel balance the heavy murmur ≤ 2mV; 14, the broadband noise voltage ≤ 50mV (3.4kHz to 150kHz) ≤ 20mV (0.15MHz to 30MHz); 15 discrete frequency noise voltage ≤ 5mV (3.4kHz to 150kHz) ≤ 3mV (150kHz ~~ 200kHz); ≤ 2mV (200kHz ~ 500kHz), ≤ 1mV (0.5MHz ~ 30MHz); 16, peak - peak noise voltage ≤ 150mV (20MHz bandwidth); 17, current capacity module: difference between the largest and smallest 1.5A or less (10% Load more); 18, the dielectric strength: input to output: 3000VAC input on housing: 1500VAC output of the chassis: 500VAC; 19, leakage current: less than 1.5mA (220VAC input); 20 safety standards: comply with GB4943-1995 requirements; 21, Electromagnetic Compatibility: Meets; 22 Reliability: Mean Time Between Failures MTBF ≥ 100000 hours; 23, cooling method: forced air cooling mode (rectifier internal DC fan, air flow 42CFM); 24 Operating temperature: -5 ℃ to +65 ℃; 25 Storage Temperature: -40 ° C to +70 ℃; 26 Relative Humidity: 10% to 90% (non-condensing); 27 Dimensions: height × width × depth: 134mm × 87mm × 341mm (excluding the integration socket); 28, Weight: 3.8kg; 29 perform standard: YD/T731-2002 communication the frequency switch rectifier; electromagnetic compatibility: 1, conducted disturbances and radiation harassment: EN55022 Class A; 2, voltage fluctuations Flicker: EN61000-3-3;, Harmonic: EN61000-3-2; 4, electrostatic discharge immunity: EN61000-4-2; radiated electromagnetic field immunity sex: EN61000-4-3; fast transient burst immunity: EN61000-4-4;, induced RF field immunity: EN61000-4-6;-frequency magnetic field immunity : EN61000-4-8; 9, voltage dips, short interruptions and voltage variations immunity: EN61000-4-11;