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SunWell Energy

12.0kW 48V Hybrid Solar Inverter

12.0kW 48V Hybrid Solar Inverter

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Model

The SW-12.0KW-48V is a 12kW hybrid solar inverter for high-demand homes and small commercial sites running on 48V battery systems. Its dual MPPT stages harvest up to 15kW from the PV array, while the unit delivers 208-240Vac pure sine wave power and switches to battery backup within 10ms. It is the most powerful model in the SW inverter range.

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12.0kW 48V Hybrid Solar Inverter — Technical Specifications
MODELSW-SYP12.0KW-48V
AC Input
Rated Input Voltage220Vac/230Vac/240Vac, L+N+PE
Voltage Range90~280Vac±3 (normal mode); 170~280Vac±3 (UPS mode)
Frequency (Hz)50Hz / 60Hz (Auto Adaptive)
AC Output
Rated Capacity12kW
Surge Power24kVA
Voltage220Vac/230Vac/240Vac
Power Factor (PF)1
Frequency50Hz / 60Hz (Auto Adaptive)
Switch Time10ms (APP/UPS mode); 20ms (GEN mode)
Wave FormPure Sine Wave
Overload Capacity (Battery Mode)1min@102%-125%/load; 10@125%load
Max. Efficiency (Battery Mode)94%@48Vdc
Parallel QuantityNA
Charger (PV / AC)
Solar Charger TypeDual MPPTs
MPPT input current / Input PowerUsing One MPPT: 27A/9KW; Using Two MPPTs: 25A/Per MPPT, 15KW/Total
MPPT Range/Operating Voltage60~450Vdc
Max.PV Open Circuit Voltage500Vdc
Max.PV Charge Current500A
Max.AC Charge Current160A
Max.Charge Current (PV + AC)160A
Battery
Rated Voltage48Vdc
Battery TypeLithium and Lead-acid
Interface
HMILCD
InterfaceRS232 / RS485 / CAN
MonitoringWiFi (Optional)
General Data
Ingress ProtectionIP21
Operating Temperature-10°C~60°C
Relative Humidity5% ~ 95% (Non-condensing)
Storage Temperature-15°C ~ 60°C
Net Weight14kg
Gross Weight16.7kg
Product Dimension (W×D×H)525×138×435mm
Max.Operating Altitude4000m (Derating above 1000m)

Features

  • Dual MPPT for Larger Arrays — Two independent MPPT trackers harvest up to 15kW from separate panel orientations, so east-west or mixed roofs are used more completely.
  • 12kW Pure Sine Wave Output — Rated at 12kW with a 24kVA surge, it powers heavy home and small commercial loads, including motor starts and equipment.
  • 48V High-Capacity Storage — Built for 48V lithium or lead-acid batteries, it supports large storage banks with floating charge at 54Vdc and overcharge protection at 61Vdc.
  • Fast, Flexible Backup — A 10ms transfer covers grid outages, while a 20ms generator mode lets the unit sync smoothly with a backup genset.
  • Hybrid Energy Management — It charges from solar or AC, prioritises self-consumption, and discharges the battery for evening peaks and backup from one device.
  • CAN and Serial Communication — RS232, RS485, and CAN interfaces plus an optional WiFi HMI connect the inverter to monitoring and control systems.

Applications

  • High-Demand Residential: Powers large homes with 48V storage and backup.
  • Small Commercial: Runs shops, offices, and workshops with self-consumption.
  • Home Energy Storage: Shifts large solar yield to evening and backup.
  • Backup Power: Keeps business and home essentials on through outages.
  • Rural and Off-Grid Hybrid: Delivers stable AC where grid is weak, with generator support.
  • Solar Self-Consumption: Maximises on-site generation and cuts grid draw.

Solar Conversion & MPPT Performance

The SW-12.0KW-48V uses dual MPPT trackers to harvest up to 15kW from the PV array, each operating across a 60-450Vdc range with a 500Vdc open-circuit limit. Independent tracking lets two panel groups with different orientations perform at their best.

The inverter converts that solar and battery DC into up to 12kW of 208-240Vac pure sine wave output, with a 24kVA surge for heavy starts. By drawing on solar and stored energy before the grid, it supports high self-consumption even for large loads.

Grid, Battery & System Integration

This hybrid unit coordinates PV, a 48V battery, and grid from one device, charging from solar or AC and discharging stored energy for evening peaks and backup. A generator mode with 20ms sync also lets a genset recharge the battery when needed.

RS232, RS485, and CAN interfaces with an optional WiFi HMI allow connection to monitoring and control systems, while IP21 protection and a -10C to 60C range suit indoor residential and commercial installations. A 10ms transfer sustains essential loads during outages.

Frequently Asked Questions

How much solar can the 12kW inverter handle?

With dual MPPTs it accepts up to 15kW of PV across a 60-450Vdc range, with a 500Vdc open-circuit limit per string.

Can it run heavy appliances and a small business?

Yes. It delivers 12kW continuously with a 24kVA surge, covering large home loads and light commercial equipment.

Does it work with a generator?

It supports generator input with a 20ms sync mode, so a backup genset can recharge the 48V battery when solar is low.

What battery and communication options does it use?

It works with 48V lithium or lead-acid batteries and offers RS232, RS485, CAN, and an optional WiFi HMI for monitoring.

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We typically respond to all inquiries within 24 hours during business days.

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