EVO-4248SP 4200W 120/240 VAC Split Phase Inverter/Charger with 60 AMPSplit phase pure sine wave inverter, adaptive battery charger, and transfer relay ALL in ONE device. Samlex EVOLUTION Series Inverter/Chargers provide reliable AC power wherever it's needed.This 4200 watt, 120V /240V split phase inverter/charger connects to a standard electrical household panel. When you combine it with a 48V battery bank and a solar system you can run a fully equipped off-grid cabin, a remote mobile construction site, or use it as an emergency backup system.Intelligently integrates a 60 Amp, 4-stage Battery Charger and a 40 Amp Transfer Relay into an advanced and affordable off-grid power solution. For use with Lead Acid or Lithium-ion batteries.Optional EVO-RC-PLUS remote control for ease of programming and monitoring.Features:120 / 240 VAC Split Phase (Dual Phase) The split-phase inverter connects to the standard household panel to provide both 120 and 240 VAC output power; AC Input One AC input for grid or for generator, no need to reconfigure when the different power source is available.; AC input is programmable for voltage and frequency. The user determines what the min and max thresholds are to switch from Grid or Generator to Inverter.; Generator start can be initiated by "Status Relay" contact and can be programmed to activate when the grid is lost.; Solar Input Connect a 48V MPPT solar charge controller directly to the EVOTM through the 100 Amp Battery Charger external DC Input, seamlessly integrating solar charging into the EVO's power system.; ONLINE Mode can be used to prioritize Batteries/Inverter over the grid, ideal for those wishing to operate primarily on solar power (when the grid is available but costly).; Battery Charger 3 or 4 stages charging with Equalization (must be manually initiated).; An adaptive algorithm is used during Bulk to assess the condition of lead-acid batteries. Subsequent stages are then based on the condition of the battery rather than pre-set time periods for Absorption and Float. Prevents unnecessary charging, and extends the life of batteries.; Programmable set battery voltage thresholds to initiate charging. Specific programmable settings for Lithium-ion batteries.; Transfer Switch Zero transfer time when switching from Inverter to Grid. When the grid comes on, the inverter synchronizes with the waveform and then transfers instantly at zero crossing.;