SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter With APS Transmitter

The SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter Connects Solar, High Voltage Batteries, and the Grid in One UL1741 SB Unit

The SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter with APS Transmitter (SG11.4KHB-HV) is a grid-interactive hybrid inverter built for high voltage lithium-ion batteries in the 120V to 500V range. It delivers 11.4kW of continuous 240V split phase power, accepts up to about 18kW of recommended PV input, and can provide backup power to dedicated loads or a whole home when the grid goes down.

SunGold designed it to work on-grid or off-grid, and it can be AC coupled or DC coupled with compatible batteries. An integrated SunSpec-certified rapid shutdown transmitter, AFCI arc-fault protection, and an IP66 outdoor-rated enclosure make it suited to modern residential solar installations that need code compliance and reliable backup.

SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter Features

11.4kW Continuous Output With 18.2kVA Surge

The inverter provides 11.4kW of continuous 240V split phase output in both grid and backup modes, with 18.2kVA available for 10 seconds and up to 85.5A for 300 milliseconds to start motor loads.

High Voltage Battery Support

It works with high voltage lithium-ion batteries from 120V to 500V, with up to 50A of charge and discharge current and CAN or RS485 battery communication. SunGold publishes a battery compatibility sheet for supported batteries.

Four MPPT Inputs With Up to 18kW of Recommended PV

Four MPPT trackers accept PV strings up to 600V maximum, with an 80 to 550V MPPT range and a full load range of 245 to 450V. Recommended maximum PV is 18,240 watts. SunGold lists a peak PV efficiency of 97.6 percent and CEC efficiency of 97.0 percent.

Fast Backup Transfer for Dedicated or Whole-Home Loads

When the grid fails, the inverter switches to backup in under 10 milliseconds and supports both dedicated backup loads and whole-home configurations with 100 percent allowable phase imbalance.

Built-In Rapid Shutdown and Arc-Fault Protection

An integrated SunSpec-certified rapid shutdown transmitter (the APS transmitter in the product name) supports NEC 2017 rapid shutdown with compatible receivers. AFCI arc-fault protection, ground fault detection, residual current detection, and DC reverse polarity protection are built in.

Outdoor-Rated, Fanless Design

The Type 4X (IP66) enclosure is rated for outdoor installation, and natural convection cooling keeps noise under 30dB(A). It operates from -13°F to 140°F.

Monitoring and Warranty

RS485 communication is standard, with optional cellular, Wi-Fi, or LAN connectivity, plus Bluetooth app access with an included antenna. SunGold lists a 10 year standard warranty, extendable to 20 years.

Real-World Applications

Grid-tied solar with backup. Use solar to offset grid power and keep critical circuits or the whole home running during outages.

High voltage battery systems. Pair with compatible 120V to 500V lithium batteries for efficient storage.

Retrofits. AC couple with an existing solar system to add storage and backup.

Code-driven installations. Integrated rapid shutdown and UL1741 SB certification help meet interconnection requirements.

How It Compares to Common Alternatives

Versus 48V hybrid inverters. High voltage batteries reduce DC current, which allows smaller battery cabling. The 48V SGS-12K18MAX supports SunGold's 48V batteries instead.

Versus off-grid all-in-one inverters. This model is grid-interactive and certified to UL1741 SA and SB, IEEE1547, and California Rule 21.

Versus indoor-only inverters. Its IP66 enclosure allows outdoor mounting.

Is This Hybrid Inverter the Right Fit

• Batteries. Requires compatible high voltage lithium-ion batteries (120 to 500V), not 48V batteries.
• Grid service. 240V split phase, 60Hz.
• Installation. 71.74 pounds and 29.53 x 22.05 x 8.66 inches. Professional installation and utility interconnection are required for grid-tied use.
• Solar array. Up to four MPPT inputs and 18,240W recommended PV.

This may be a good fit if

• You want grid-tied solar with battery backup
• You plan to use high voltage lithium batteries
• You need built-in rapid shutdown and AFCI
• You want an outdoor-rated inverter

Common Questions

What Batteries Are Compatible?

High voltage lithium-ion batteries between 120V and 500V. SunGold provides a battery compatibility sheet.

Can It Back Up the Whole Home?

Yes. SunGold lists support for both dedicated backup loads and whole-home backup.

What Certifications Does It Carry?

UL1741 SB and SA, IEEE1547.1-2020, UL1699B, UL1998, FCC Part 15 Class B, California Rule 21, NEC 690.12-2020, and CSA C22.2 107.1-1, with HECO Rule 14H listed as pending.

What Is the Warranty?

SunGold lists 10 years standard, extendable to 20 years.

What's Included

• 1 x SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter (SG11.4KHB-HV)
• 1 x Inverter Mounting Bracket
• 4 x Stabilizing Set Screws
• 4 x Back Mounting Plate Screws
• 2 x Spare Upper Cover Screws
• 1 x External Energy Meter
• 2 x Current Transformers
• 3 x 1/2 Inch Cable Glands
• 14 x Terminal Pins
• 3 x RJ45 Connectors
• 1 x Parallel Communication Cable (2 m)
• 1 x Torx T20 Tool
• 1 x Bluetooth Antenna

Grid-Interactive Power With Reliable Backup

The SunGold Power High Voltage 11.4KW Hybrid Split Phase Inverter brings solar, high voltage storage, and grid power together with built-in rapid shutdown and outdoor-rated construction. At Outbound Power, we help customers plan hybrid solar and storage systems, including battery compatibility and backup configuration. If you have questions, our team is happy to help.