Rongkai Solar
3kW 48V Off-Grid Inverter Charger for residential solar systems
Residential Solar Inverters3 kW

3kW 48V Off-Grid Inverter Charger

3 kW off-grid inverter charger for remote homes, cabins and weak-grid sites.

3 kWOff-grid inverter charger1 MPPT
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Overview

Representative residential sourcing configuration for remote homes, cabins and weak-grid sites. Confirm final model, grid code, battery compatibility, certification and approved factory datasheet before order.

Key Features

Feature 1

Integrated inverter charger for PV, battery and generator systems.

Feature 2

48 V battery configuration suited to standalone residential systems.

Feature 3

Confirm PV controller, generator-start and BMS functions in the final configuration.

Technical Specifications

PV Input & MPPT

Maximum PV input4.5 kW
PV / MPPT range60–450 V; 500 V max.
MPPT configuration1 MPPT

Battery & Backup

Battery interface48 V low-voltage lithium or lead-acid
Backup / EPSContinuous off-grid output; 6 kVA short-duration peak

AC Output & Grid

Rated AC output3 kW
AC connection230 V single-phase
Maximum efficiencyUp to 93% inverter efficiency
Grid50/60 Hz AC input / generator compatible
Rated output current13.0 A rated AC output

Installation & Communication

Protection ratingIP20; indoor installation
CommunicationRS232 / RS485; BMS option
DimensionsApprox. 120 × 300 × 440 mm
WeightApprox. 10 kg

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