About This Product

The SAJ 8kW H2 SERIES Single Phase Hybrid Inverter with 3 MPPT is an 8 kW single-phase hybrid inverter designed to manage solar generation, compatible high-voltage battery storage and backup power within one system. The H2-8K-S3 provides three independent MPPT inputs, allowing an installer to separate different panel strings or roof orientations for more flexible system design. It supports up to 12 kW of connected PV array capacity and is designed for use with SAJ B2S high-voltage LiFePO4 battery systems.

SAJ has also integrated backup functionality into the H2 platform. When correctly configured with suitable battery storage and backup circuits, the inverter can supply designated loads during a grid outage with a transfer time of 10 ms or less.

Who This Product Suits

This SAJ hybrid inverter suits larger single-phase residential solar systems where battery storage is required now or is being incorporated as part of the installation. Its three MPPTs are particularly useful on homes where the solar array needs to be divided across multiple roof orientations or electrically separate strings.

It is also suitable for installations requiring selected backup loads during a power outage. The 8 kW rated output provides useful capacity for homes with higher daytime electricity consumption, while compatibility with SAJ B2S high-voltage batteries provides an integrated SAJ solar and storage solution.

Specifications Explained

The H2-8K-S3 has a rated AC output of 8,000 W and supports up to 12,000 W of PV array capacity. Its three MPPTs operate across a 90-500 V MPPT range, with a maximum DC voltage of 600 V and maximum input current of 16 A per MPPT.

The battery connection operates across an 85-450 V range and supports up to 50 A charging and discharging current. For backup operation, peak output can reach 9,600 VA for up to 60 seconds, helping the inverter deal with short-duration increases in load. The unit uses natural-convection cooling, has an IP65 ingress-protection rating and supports Wi-Fi, Ethernet or optional 4G communications for system monitoring.

Summary

The SAJ H2-8K-S3 combines an 8 kW single-phase solar inverter, high-voltage battery interface and backup capability in one unit. With three MPPTs, support for up to 12 kW of PV and compatibility with SAJ B2S battery storage, it provides installers with good flexibility when designing larger residential hybrid systems. For customers wanting solar, battery storage and provision for essential-load backup within the same SAJ platform, this model covers those functions without requiring separate solar and battery inverters.

Further Information From The Manufacturer

The SAJ H2-8K-S3 8kW Single Phase Hybrid Inverter is a high-performance solar and battery storage solution designed for residential energy systems. Featuring three MPPTs, a rated AC output power of 8,000W and support for up to 12kW of PV array power, it provides flexible and efficient solar energy management with scalable battery storage.

The inverter is compatible with SAJ B2S high-voltage batteries, supporting 2-6 B2S battery modules. For reliable backup power, it features an integrated UPS-style backup system for essential loads, with a 34.8A bypass current and switching time of ≤10ms. Peak backup output can reach up to 9,600W for 60 seconds. A manual transfer switch is recommended separately for additional backup load redundancy.

Key Features:

• 8kW single-phase hybrid inverter
• 3 MPPTs for flexible PV configuration
• Rated AC output power: 8,000W
• Maximum PV array power: 12,000W
• Compatible with SAJ B2S high-voltage batteries
• Supports 2-6 B2S battery modules
• Built-in UPS-style backup for essential loads
• 34.8A backup bypass current
• Backup switching time: ≤10ms
• Peak backup output: up to 9,600W for 60 seconds
• IP65 rated
• Dimensions: 549mm W x 430.5mm H x 223mm D
• Weight: 26kg
• 10-year standard warranty

Package Includes:

• 1 x Single-phase smart meter
• 1 x 100A/40mA CT
• 1 x 1m meter communication cable
• 1 x DC wiring cover

Weights & Measurements Information

About SAJ

SAJ is a manufacturer of solar inverters, battery storage systems and associated energy-management equipment. Its residential range includes grid-connected and hybrid inverters together with modular high-voltage battery systems. SAJ develops its battery and inverter products as integrated platforms, allowing compatible components to communicate and operate as a complete solar and energy-storage system. In Australia, SAJ supplies equipment for residential and commercial solar and battery applications.