For massive industrial-scale energy storage and management, the ATESS PCS250 battery inverter designed to handle large commercial or utility applications, integrating seamlessly with batteries, solar chargers, grids, and generators. This versatile unit supports both on-grid and off-grid operations with quick manual or optional automatic switching in under 10ms, making it ideal for peak shaving, backup power, and optimizing energy costs in factories, data centers, or renewable energy farms. With programmable modes, paralleling capabilities for expanded systems, and a touchscreen interface for easy monitoring, it ensures efficient power conversion and reliability in demanding setups. Built with a transformer and robust protections, the PCS250 is engineered for high performance and durability in tough environments.

Key Features
- Bidirectional Power Conversion: Efficiently charges and discharges batteries for energy storage, grid support, and hybrid systems with solar or generators.
- Paralleling Multiple Units: Scale up capacity by connecting units, with redundancy for uninterrupted operation.
- Programmable Working Modes: Customizable for peak shaving, self-consumption, backup, and remote DG control via dry contact.
- Touchscreen LCD Interface: Intuitive display for setup, monitoring, and maintenance.
- Flexible Configuration: Compatible with high-voltage batteries, includes built-in transformer, and optional automatic on/off-grid transfer in ≤10ms.
- High Efficiency and Protections: Up to 97.3% efficiency, IP20 rating, Type II lightning protection, and low harmonics for reliable performance.
ATESS PCS250 battery inverter Technical Data Table
| Specification | Value/Details |
|---|---|
| Rated Power (AC) | 250 kW |
| Apparent Power (AC) | 275 kVA |
| Rated Voltage (AC) | 400 V (3/N/PE) |
| Rated Current (AC) | 361 A |
| Voltage Range (AC Grid) | 360 V – 440 V |
| Rated Frequency | 50/60 Hz |
| Frequency Range (Grid) | 45-55 Hz / 55-65 Hz |
| THDI (Current Harmonic) | <3% |
| THDU (Voltage Harmonic, Off-Grid) | ≤2% linear |
| Power Factor | 0.8 lagging to 0.8 leading |
| Overload Capability (Off-Grid) | 110% for 10 min, 120% for 1 min |
| Max. Rectified Power (AC) | 250 kW |
| Battery Voltage Range | 500 V – 820 V |
| Max. Charge/Discharge Current | 220 A |
| Voltage Regulation | ±1% |
| Current Regulation | ±1% |
| Voltage Ripple | <3% |
| Current Ripple | <2% |
| Max. Efficiency | 97.30% |
| Protection Degree | IP20 |
| Lightning Protection | Type II |
| Operating Temperature | -25°C to +55°C |
| Cooling | Forced-air |
| Noise Level | <65 dB(A) @1m |
| Relative Humidity | 0-95% non-condensing |
| Max. Altitude | 6000 m (derating >3000 m) |
| Dimensions (W x H x D) | 1600 mm x 2080 mm x 850 mm |
| Weight | 1465 kg |
| Display | Touchscreen LCD |
| Communication | RS485, CAN |
| Transfer Time (On/Off-Grid) | Manual (default); Automatic (optional) ≤10 ms |
| Built-in Transformer | Yes |
| Parallel Capability | Multiple units |
| Certifications | CE, MEA, PEA, EN 61000-6-2:2019, EN 61000-6-4:2019, EN61000-6-2:2005, EN62109-1:2010, EN62109-2:2011, NRS 097-2-1:2017, VDE 0126, UTE-C 15-712, EN 50549-1:2019, PSE:2018-12 |
Checkout: ATESS



























