About This Product

The SAJ 5kW H2 SERIES Single Phase Hybrid Inverter with 2 MPPT is a 4,999W single-phase hybrid inverter designed to manage solar generation, high-voltage battery storage and grid power within one residential energy system. SAJ equips the H2-5K-S2 with two independent MPPT trackers, allowing two separate PV strings or roof orientations to be managed independently. It supports up to 7,500W of connected PV array capacity and includes battery charging and discharging capability for compatible high-voltage lithium battery systems. The inverter also provides a dedicated backup output that can be configured to supply selected essential circuits during a grid outage.

Who This Product Suits

This SAJ inverter suits single-phase homes requiring a combined solar and battery inverter rather than separate solar and battery conversion equipment. Its two MPPT trackers are useful where the solar array is divided across two orientations or strings with different operating conditions. It is particularly suitable for new solar-and-battery installations, or projects where battery storage is being included as part of the initial system design. The backup output also makes it suitable for households wanting selected essential loads configured for operation during a grid outage, subject to the electrical design and installation.

Specifications Explained

The H2-5K-S2 has a rated grid-connected AC output of 4,999W and accepts up to 7,500W of PV array capacity. Its two MPPT trackers operate across a 90-500V MPPT range, with a maximum DC input voltage of 550V and up to 16A input current per MPPT. The high-voltage battery input operates across 85-450V and supports charging and discharging current up to 30A. Maximum inverter efficiency is 97.6%. For backup operation, the inverter can provide up to 4,999VA continuously and a peak apparent output of 6,000VA for up to 60 seconds. SAJ also provides Wi-Fi connectivity for system monitoring, with Ethernet and 4G communication options available depending on system configuration. The inverter is IP65 rated and uses natural-convection cooling without a cooling fan.

Summary

The SAJ H2-5K-S2 combines a 5kW-class single-phase solar inverter, high-voltage battery interface and backup capability in one unit. With two MPPT trackers, support for up to 7.5kW of PV, 30A battery charging and discharging capability and remote monitoring, it covers the main functions required for a residential hybrid solar installation. For installers designing a straightforward single-phase SAJ solar and storage system, it provides a practical platform for managing PV generation, battery storage, household consumption and selected backup loads.

Further Information From The Manufacturer

The SAJ H2-5K-S2 5kW Single Phase Hybrid Inverter is a reliable solar and battery storage solution designed for residential energy systems. Featuring two MPPTs, a rated AC output power of 4,999W and support for up to 7.5kW of PV array power, it provides efficient solar energy management with flexible battery storage capabilities.

The inverter is compatible with SAJ B2S high-voltage batteries, supporting 2-6 B2S battery modules. It also features an integrated UPS-style backup system for essential loads, with a 21.7A bypass current and switching time of ≤10ms. Peak backup output can reach up to 6,000W for 60 seconds. A manual transfer switch is recommended separately for additional backup load redundancy.

Key Features:

• 5kW single-phase hybrid inverter
• 2 MPPTs for flexible PV configuration
• Rated AC output power: 4,999W
• Maximum PV array power: 7,500W
• Compatible with SAJ B2S high-voltage batteries
• Supports 2-6 B2S battery modules
• Built-in UPS-style backup for essential loads
• 21.7A backup bypass current
• Backup switching time: ≤10ms
• Peak backup output: up to 6,000W for 60 seconds
• IP65 rated
• Dimensions: 499mm W x 385.5mm H x 193.5mm D
• Weight: 17.6kg
• 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.