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LuxpowerTek LXP ACS 3600 MG (AC-coupled Inverter)
LuxpowerTek LXP ACS 3600 MG (AC-coupled Inverter)
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SKU:F/B93.002603
The LXP ACS 3600 3.6kW AC-Coupled Retrofit Inverter is a powerful way to add 48V battery storage to an existing grid-connected or micro-grid solar system without replacing the current solar inverter. With 3.6kW output, 70A battery charge and discharge capability, intelligent time-of-use tariff charging and a dedicated EPS backup output, it provides a practical upgrade path for households and businesses looking to increase solar self-consumption, reduce grid imports and add backup power.
Key Features
- 3.6kW AC-coupled battery storage inverter for retrofit installations
- Works alongside an existing grid-tied solar inverter
- 48V nominal battery system with 40-60V operating range
- Up to 70A maximum battery charge and discharge current
- 3,600W maximum battery charge and discharge power
- Supports up to 8 units operating in parallel for scalable energy storage
- Dedicated EPS output with less than 20ms transfer time
- 4,500W EPS surge capability for up to 30 seconds
- 40A continuous AC passthrough
- Smart charging strategies for time-of-use electricity tariffs
- Supports optimisation around Octopus time-of-use tariffs and forecast conditions
- RS485, Wi-Fi and CAN communications
- IP65 protection for indoor or outdoor installation
- Quiet natural cooling with 25dB noise emission
- 10-year warranty
Add Battery Storage to an Existing Solar System
The LXP ACS 3600 is installed on the AC side of an existing solar PV system, allowing battery storage to be added while retaining the existing grid-tied solar inverter. This makes it particularly useful for retrofit solar battery installations where the original PV system is performing well and does not need replacing.
Excess solar generation can be stored in a compatible 48V battery system rather than exported immediately to the grid. Stored energy can then be used later in the day when household demand rises or solar generation falls, increasing solar self-consumption and reducing reliance on imported electricity.
Smart Tariff Charging and Energy Optimisation
Battery charging is not limited to surplus solar generation. The LXP ACS 3600 can also charge from the grid during lower-cost electricity periods, allowing stored energy to be discharged when import rates are higher. This makes the inverter particularly well suited to UK homes using variable and time-of-use electricity tariffs.
Intelligent charging strategies can optimise operation around Octopus time-of-use tariffs and forecast conditions, helping the battery system make better use of low-cost grid energy alongside available solar generation.
EPS Backup Power
A dedicated Emergency Power Supply (EPS) output allows selected essential circuits to remain powered during a grid outage. The EPS provides a rated 3,600W output, pure sine wave power and a transfer time of less than 20ms, with up to 4,500W surge capability for 30 seconds.
This gives installers flexibility to create a priority-load circuit for equipment such as refrigeration, lighting, communications equipment and other essential electrical loads.
Technical Specifications
| Specification | Value |
|---|---|
| Rated Output Power | 3,600W |
| Maximum Charge/Discharge Power | 3,600W |
| Maximum Charge/Discharge Current | 70A |
| Nominal Battery Voltage | 48V |
| Battery Operating Range | 40-60V |
| Rated AC Voltage | 230V |
| AC Frequency | 50/60Hz |
| Rated AC Output Current | 16A |
| Maximum AC Input Current | 26A |
| Continuous AC Passthrough | 40A |
| Maximum Efficiency | 97.3% |
| Charge/Discharge Efficiency | 94.5% |
| EPS Rated Output | 3,600W |
| EPS Surge Output | 4,500W for 30 seconds |
| EPS Transfer Time | <20ms |
| Power Factor | Adjustable from 0.8 leading to 0.8 lagging |
| THDi | <3% |
| Communications | RS485, Wi-Fi, CAN |
| Cooling | Natural cooling |
| Noise Emission | 25dB |
| Protection Rating | IP65 |
| Topology | Transformerless |
| Operating Temperature | -25°C to 60°C |
| Dimensions | 650 × 440 × 220mm |
| Weight | 15.6kg |
| Parallel Operation | Up to 8 units |
| Warranty | 10 years |
Protection and Compliance
- Anti-islanding protection
- Over-current protection
- Over-voltage protection
- AC short-circuit protection
- Grid monitoring
- Type III AC surge protection
- Force wake-up from grid supported
- Compliance includes IEC62109-1, IEC62040, EN 61000 series, VDE-AR-N 4105, EN50549-1, G98 and G100
Typical Applications
- Adding battery storage to an existing solar PV installation
- Residential solar battery storage systems
- Time-of-use tariff optimisation and load shifting
- Increasing solar self-consumption
- Reducing peak-rate grid electricity imports
- Essential-load backup during power cuts
- Expandable residential and commercial energy storage systems
Why Choose This Product?
The LXP ACS 3600 provides a straightforward route into battery storage for properties that already have a functioning solar PV system. Rather than replacing the existing solar inverter, it adds battery charging, tariff optimisation and EPS backup capability on the AC side of the installation. With 70A battery charging, IP65 construction, parallel expansion and a 10-year warranty, it is a strong choice for building a flexible 48V solar battery system that can adapt as energy requirements grow.
For technical support or additional information, reach out to us at hello@offgridrenewables.co.uk.
