US-Standard All-in-One Inverter ESS (3.6kW / 4kW)
Model No.: PS-AIO-US-3.6K-5K / PS-AIO-US-3.6K-8K
The US-Standard All-in-One Inverter ESS is a compact, floor-standing energy storage solution integrating a solar inverter, LiFePO₄ battery storage, and an intelligent Battery Management System (BMS) in a single enclosure.
Available with 3.6kW and 4kW inverter options and 5kWh or 8kWh battery capacities, the system is designed for residential energy storage applications requiring 120V-class single-phase AC power.
Featuring integrated MPPT solar charging, pure sine wave AC output, grid-connected operation, and WiFi monitoring, the system supports efficient solar energy utilization, household electricity management, and emergency backup power.
With a fast transfer time of less than 10ms, an LCD display, and a space-saving integrated design, the system offers a practical solution for residential solar self-consumption and backup power applications. Its IP20-rated enclosure is intended for installation in suitable protected indoor environments.
Key Features
– US-standard all-in-one energy storage system integrating solar inverter, LiFePO₄ battery and intelligent BMS
– Available inverter power options: 3.6kW and 4kW
– Battery capacity options: 5kWh and 8kWh
– Single-phase 120V-class AC input and output
– Maximum PV input power: 4,500W for 3.6kW models and 5,000W for 4kW models
– Integrated MPPT solar charging with a maximum PV open-circuit voltage of 500V DC
– Pure sine wave AC output for stable household electricity supply
– Supports solar charging and grid-connected operation
– Fast UPS transfer time of less than 10ms
– Nominal LiFePO₄ battery voltage: 25.6V DC
– LCD display with WiFi monitoring and USB/RS485 communication
– Compact floor-standing design for space-efficient installation
– IP20-rated enclosure for protected indoor environments
– Suitable for residential solar self-consumption, household energy storage and emergency backup power
Technical Specifications
| Technical Parameter | 3.6kW Series | 4kW Series |
|---|---|---|
| System Configuration | ||
| Product Type | US-Standard All-in-One Inverter ESS | US-Standard All-in-One Inverter ESS |
| Model | ESS HY 3.6kW + 5/8kWh | ESS HY 4kW + 5/8kWh |
| Rated Inverter Capacity | 3,600VA | 4,000VA |
| Battery Capacity Options | 5 / 8kWh | 5 / 8kWh |
| Battery Chemistry | LiFePO4 | LiFePO4 |
| Solar PV Input | ||
| Maximum PV Input Power | 4,500W | 5,000W |
| Maximum PV Open-Circuit Voltage | 500V DC | 500V DC |
| MPPT Voltage Range | 120–450V DC | 60–450V DC |
| Maximum PV Input Current | 27A | 18A |
| Maximum PV Short-Circuit Current | Not specified | 22A |
| Number of MPPT Trackers | 1 | Not specified |
| AC Input | ||
| Rated AC Input Voltage | 120V AC ±5% | 120V AC ±5% |
| AC Input Voltage Range | 90–140V AC ±2% | 90–140V AC ±2% |
| Input Frequency | 50 / 60Hz (Auto Detect) | 50 / 60Hz (Auto Detect) |
| Maximum Bypass Input Current | 40A | 40A |
| AC Output | ||
| Rated Output Capacity | 3,600VA | 4,000VA |
| AC Output Voltage | 120V AC | 100 / 110 / 120 / 127V AC |
| Output Frequency | 50 / 60Hz ±0.3Hz | 50 / 60Hz |
| Output Waveform | Pure Sine Wave | Pure Sine Wave |
| Motor Load Capability | 2HP | 2HP |
| Battery Mode Maximum Efficiency | 91% | 92.6% |
| Transfer Time | <10ms | <10ms |
| Battery System | ||
| Nominal Battery Voltage | 25.6V DC | 25.6V DC |
| Nominal Battery Energy | 5 / 8kWh | 5 / 8kWh |
| Usable Energy (90% DOD) | 4.5 / 7.2kWh | 4.5 / 7.2kWh |
| Maximum AC Charging Current | 80A | 100A |
| Maximum PV Charging Current | 80A | 100A |
| Maximum Combined Charging Current | 80A | 100A |
| Maximum Discharge Current | Not specified | 170A |
| Battery Operating Voltage Range | 21.6–29.2V DC | 21.6–29.2V DC |
| General Data | ||
| Display | LCD | LCD |
| Communication | USB / RS485 | USB / RS485 |
| Monitoring | WiFi | WiFi |
| Ingress Protection Rating | IP20 | IP20 |
| Charging Temperature | 0°C to +55°C | 0°C to +55°C |
| Discharging Temperature | -20°C to +55°C | -20°C to +55°C |
| Relative Humidity | 5–95% (Non-condensing) | 5–95% (Non-condensing) |
| Maximum Operating Altitude | 4000m (Derating above 2000m) | 4000m (Derating above 2000m) |
| Dimensions & Weight | ||
| Product Dimensions (L × W × H) | 440 × 246 × 760mm | 440 × 246 × 760mm |
| Net Weight — 5kWh | 64kg | 64kg |
| Net Weight — 8kWh | 75kg | 75kg |
| Package Dimensions (L × W × H) | 520 × 436 × 890mm | 520 × 436 × 890mm |
Notes: Specifications vary by inverter model and battery configuration. Battery usable energy values are based on 90% depth of discharge (DOD). The IP20-rated enclosure is intended for protected indoor installation. All technical data is subject to final manufacturer confirmation.
Applications
Residential Energy Storage
The US-Standard All-in-One Inverter ESS provides a compact and integrated energy storage solution for residential properties using 120V-class single-phase electrical systems. Available with 3.6kW and 4kW inverter options and 5kWh or 8kWh LiFePO₄ battery capacities, the system supports household solar self-consumption, daily electricity management, and backup power applications. Its floor-standing design combines the solar inverter, battery storage, and intelligent BMS in one enclosure, while integrated MPPT solar charging and WiFi monitoring enable convenient energy management. The IP20-rated system is designed for installation in suitable protected indoor environments.
Emergency Backup Power
The US-Standard All-in-One Inverter ESS provides reliable emergency backup power for residential applications during grid outages. Available with 3.6kW and 4kW inverter options and integrated 5kWh or 8kWh LiFePO₄ battery storage, the system supports essential household loads such as lighting, refrigerators, communication equipment, and other critical appliances within its rated output capacity. With a fast transfer time of less than 10ms, pure sine wave AC output, and intelligent battery management, the system helps maintain a stable power supply for important household equipment during unexpected power interruptions.
Solar-Powered Applications
The US-Standard All-in-One Inverter ESS is designed for residential solar energy storage applications using 120V-class single-phase electrical systems. Available with 3.6kW and 4kW inverter options, the system supports maximum PV input powers of 4,500W and 5,000W respectively. Its integrated MPPT solar charging technology enables efficient photovoltaic energy utilization, while the built-in 5kWh or 8kWh LiFePO₄ battery stores excess solar electricity for use during nighttime or periods of low solar generation. The system helps improve solar self-consumption, optimize household energy management, and reduce dependence on grid electricity.
Off-Grid & Remote Power
The US-Standard All-in-One Inverter ESS provides a practical energy storage solution for off-grid homes, remote cabins, and residential locations with limited or unreliable grid access. Combining a 3.6kW or 4kW pure sine wave inverter with 5kWh or 8kWh LiFePO₄ battery storage, the system can supply essential 120V-class single-phase electrical loads within its rated capacity. Integrated MPPT solar charging enables photovoltaic energy to be stored and used when sunlight is unavailable, while intelligent battery management and WiFi monitoring support convenient system operation. Its compact floor-standing design makes it suitable for protected indoor installations in remote residential environments.