Main Features:
*LCD digital display show voltage, load and battery info in real time.
*Peak power is three times of rated power.
*Can work with inductive load such as air conditioner, motor door and so on.
*Pure sine wave output, available for sensitive load. 
*4-step progressive charging, 7 battery type selector. 
*Fast and powerful charger with 35A and 70A. 
*Accept generator’s energy output. 
*High power factor 0.9, low power consumption. 
*Automatically transfer between battery and line modes. 
*Microprocessor control guarantees high reliability. 
*Bypass without battery connected. 
*Remote control function. 
*Protection against: Over load, over temperature, over charging, low battery 
*Reverse connection (optional by hard connector), Blackouts
Specification:
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  | MODEL | LW-4000 | 
|  |  | Nominal Power | 4000W | 
|  |  | AC Input | 
|  |  | Phase & | Single phase & Pure Sine Wave | 
|  |  | waveform | 
|  |  | Voltage | 110/120/130VAC or 220/230/240VAC | 
|  |  | Acceptable Voltage | 95-126VAC or 194-253VAC±4% | 
|  |  | Low Line Disconnect | 85VAC±4% or 184VAC±4% | 
|  |  | Low Line Re-connect | 95VAC±4% or 194VAC±4% | 
|  |  | High Line Disconnect | 136VAC±4% or 263VAC±4% | 
|  |  | High Line Re-connect | 126VAC±4% or 253VAC±4% | 
|  |  | Frequency | 50Hz:41-54Hz  60Hz:51-64Hz | 
|  |  | AC Output | 
|  |  | Phase & waveform | Single phase & Pure Sine Wave (bypass mode sync to input) | 
|  |  | Voltage | 110/120/130VAC or 220/230/240VAC±10%rms (bypass mode sync to input) | 
|  |  | Frequency | 50Hz±0.3Hz 60Hz±0.3Hz (bypass mode sync to input) | 
|  |  | Peak Power | 3 times of rating power | 
|  |  | Short Circuit | Yes, shutdown after 10ms | 
|  |  | Protection | 
|  |  | Power Factor | 0.9-1.0 | 
|  |  | DC Input | 
|  |  | Battery Voltage | 12VDC or 24VDC or 48VDC | 
|  |  | Minimum Start | 10VDC or 20VDC or 40VDC | 
|  |  | Voltage | 
|  |  | Low Battery Alarm | 10.5±0.3vdc or 21±0.6vdc or 42±1.2vdc | 
|  |  | Low DC input | 10±0.3vdc or 20±0.6vdc or 40±1.2vdc | 
|  |  | Shut-down | 
|  |  | High DC input Alarm & Fault | 16±0.3vdc or 32±0.6vdc or 64±1.2vdc | 
|  |  | High DC input | 15.5±0.3vdc or 31±0.6vdc or 62±1.2vdc | 
|  |  | Recovery | 
|  |  | MAX Charger | 20A/35A/ 50A/75A/90A(According to the Inverter model) | 
|  |  | Current | 
|  |  | System parameter | 
|  |  | Battery Mode | >85% | 
|  |  | Efficiency? | 
|  |  | Line Mode | >96% | 
|  |  | Efficiency? | 
|  |  | power saver | Load | 
|  |  | Audible Alarm | Sounding when the heat sink’s tem is over 100? and shutdown after 30 seconds. | 
|  |  | Over Load | 110% | 
|  |  | Protection | Load>150%, beeps 0.5s every 1s, and Fault after 20s. | 
|  |  | Protections | low battery?over charging?over temp?over load | 
|  |  | Communications | RS-232/USB/SNMP(custom-made) | 
|  |  | Operating Environment | 0-40?,0-90%RH(non-condensing) | 
|  |  | Audible Noise |  | 
|  |  | Net Weight(KG) | 35.5 kg | 
|  |  | Dimension L X W X H | 650 X223 X185mm |