100kW 125kW 480V/277V Three Phase Power Conversion System | Commercial Battery Inverter for USA Market
EGbatt-125kW 480V Three-Phase Bidirectional PCS Module for C&I Energy Storage
High-performance 125kW bidirectional power conversion system designed for commercial & industrial 480V three-phase energy storage, microgrids, and peak shaving applications. Features 98.5% peak efficiency, modular IP20 design, sub-20ms grid/off-grid transition, and seamless integration with 20+ mainstream BMS protocols.
The North American C&I landscape relies on standardized 480V three-phase distribution. The EGbatt-125kW PCS features a wide AC voltage tolerance range (±15%) and a transformerless three-level topology optimized for seamless adaptation to 480V/277V Wye and Delta configurations. With built-in grid-forming and grid-tied capabilities, the system maintains stable operation under weak-grid conditions, voltage fluctuations, and frequency deviations common in commercial facilities.
125kW 480V Three-Phase Bidirectional PCS Module for C&I Energy Storage
Engineered for North American commercial and industrial power systems, the EGbatt-125kW Power Conversion System (PCS) delivers grid-ready, bidirectional energy conversion with industrial-grade reliability. Designed for direct integration into 480V/277V three-phase networks, this modular inverter combines 98.5% peak efficiency, advanced power quality management, and rapid deployment architecture to meet the rigorous demands of modern C&I energy storage, microgrids, and solar-plus-storage installations.
Whether you're an EPC, system integrator, or microgrid developer, the EGbatt-125kW PCS provides a scalable, engineering-ready foundation for peak shaving, demand charge reduction, backup power, and grid-supportive operations across the United States and Canada.
Electrical schematic diagram
Engineered for North American 480V/277V Commercial Grids
The North American C&I landscape relies on standardized 480V three-phase distribution. The EGbatt-125kW PCS features a wide AC voltage tolerance range (±15%) and a transformerless three-level topology optimized for seamless adaptation to 480V/277V Wye and Delta configurations. With built-in grid-forming and grid-tied capabilities, the system maintains stable operation under weak-grid conditions, voltage fluctuations, and frequency deviations common in commercial facilities.
AC Voltage Range: 380V–460V nominal (±15% tolerance), configurable for 480V/277V NA installations
Frequency Support: 50Hz/60Hz auto-detection, 45–65Hz operational window
Phase Configuration: Compatible with 3-wire and 4-wire systems
Grid Compliance Architecture: Designed to align with North American interconnection standards (IEEE 1547 functional requirements supported via firmware configuration)
Datasheet
| Parameter | Specification |
|---|---|
| Rated Power | 125 kW |
| Peak Efficiency | 98.5% |
| DC Voltage Range | 580–950V (3P3) / 630–950V (3P4W) |
| Max DC Current | 210 A |
| AC Output Voltage | 480V/277V compatible (±15% grid tolerance) |
| Power Factor | >0.99 (rated), adjustable -1 to +1 |
| Charge/Discharge Switchover | <20 ms |
| Power Response Time | <10 ms |
| THDi (Rated Power) | <3% |
| Overload Capacity | 110% for 10 min / 120% for 1 min |
| Operating Temperature | -25°C to 60°C (derating >45°C) |
| Max Altitude | 3000 m (derating above) |
| Protection Rating | IP20 (Indoor/Cabinet-Mounted) |
| Cooling | Intelligent air cooling (≤65 dB) |
| Dimensions (W×D×H) | 500×650×200 mm (Front) / 500×680×200 mm (Rear) |
| Weight | 50 kg (Front) / 53 kg (Rear) |
Advanced Grid Support & Power Quality Management
Commercial facilities face complex power quality challenges: unbalanced loads, harmonic distortion, and voltage sags. The EGbatt-125kW PCS integrates active power conditioning directly into the inverter architecture, eliminating the need for external compensators.
4-Quadrant Active/Reactive Power Control: Dynamic VAr support for power factor correction and grid voltage stabilization
Three-Phase Unbalance Compensation: Real-time load balancing across phases to reduce transformer stress and line losses
Low-Order Harmonic Mitigation: Active filtering reduces THD to <3%, protecting sensitive industrial equipment
High/Low Voltage Ride-Through (H/LVRT): Maintains grid connection during transient disturbances per utility interconnection requirements
Anti-Islanding Protection: Fast detection and safe shutdown for personnel and equipment safety
Seamless Grid/Off-Grid Transition: Optional STS (Static Transfer Switch) enables uninterrupted backup power for critical loads
Seamless BMS & EMS Integration for Scalable Deployment
Modern energy storage projects require open, vendor-agnostic communication. The EGbatt-125kW PCS is built for rapid integration with leading Battery Management Systems (BMS) and Energy Management Systems (EMS).
Native Protocol Support: Modbus RTU, CAN 2.0, RS485
BMS Compatibility: Pre-configured for 20+ mainstream lithium-ion and LFP BMS protocols
Control Modes: Constant power, DC constant current, AC constant current, AC constant voltage
API-Ready Architecture: Standardized register maps and SunSpec-aligned data structures for third-party EMS/SCADA integration
Modular Scalability: Parallel multiple 125kW units for 250kW–1MW+ systems with synchronized load sharing
Why Integrators & EPCs Choose the EGbatt-125kW PCS
Engineering-First Design: Transformerless 3-level topology, industrial IGBTs, and intelligent thermal management ensure long-term reliability in harsh C&I environments.
Rapid Deployment: Front/rear wiring options, 50kg lightweight chassis, and flexible mounting (vertical/horizontal/side) cut installation time by up to 30%.
Open Integration Philosophy: No vendor lock-in. Standard protocols, published API documentation, and dedicated engineering support accelerate commissioning.
Certification Roadmap Transparency: System architecture is designed for UL 1741 / IEEE 1547 compliance. Full testing documentation and certification timelines available upon request for project planning.
North American Supply Chain Ready: Optimized for 60Hz grids, 480V distribution, and commercial cabinet/enclosure standards.
Applications
- **Demand Charge Management** Slice peak loads, reduce utility penalties, optimize TOU arbitrage
- **Solar+Storage Self-Consumption** Store excess PV generation, maximize ROI on rooftop/ground-mount arrays
- **Commercial Microgrids** Islanded operation during outages, black-start capability, diesel generator pairing
- **EV Charging Station Buffer** Smooth high-power charging demand, defer grid infrastructure upgrades
- **Industrial Power Conditioning** Mitigate voltage sags, harmonic distortion, and phase unbalance in manufacturing facilities
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FAQ Section - EGbatt 125kW 480V Three-Phase PCS Frequently Asked Questions
Yes. The EGbatt-125kW PCS supports both 3-wire (Delta) and 4-wire (Wye) configurations with auto-detection and configurable voltage tolerance (±15%), making it suitable for standard North American 480V commercial distribution. The unit operates within a grid voltage range of 380V-460V (nominal 400V/480V systems) and automatically adapts to three-phase three-wire (3P3) or three-phase four-wire (3P4W) wiring configurations.
The EGbatt-125kW PCS achieves a peak conversion efficiency of 98.5% using advanced 3-level IGBT topology and transformerless design. This high efficiency translates to lower operating costs and reduced heat generation, extending system lifespan. The efficiency remains above 98% across a wide operating range (30%-100% load).
Yes. Multiple 125kW modules can be paralleled with synchronized load sharing to scale from 250kW to 1MW+ systems. The modular architecture allows flexible capacity expansion without requiring complete system redesign. Contact our engineering team for parallel configuration guidelines, communication topology recommendations, and load-sharing synchronization protocols.
The PCS natively supports Modbus RTU and CAN 2.0 with pre-configured profiles for 20+ mainstream lithium-ion and LFP BMS vendors including CATL, BYD, Pylontech, Dyness, and other major manufacturers. Custom protocol adaptation is available for enterprise deployments. The system features automatic BMS detection and parameter synchronization for streamlined commissioning.
Technical Specifications
The EGbatt-125kW PCS features a wide DC voltage operating range:
Three-phase 3-wire (3P3): 580V - 950V DC
Three-phase 4-wire (3P4W): 630V - 950V DC
This wide voltage window accommodates various battery chemistries and configurations, including 600+Ah large-format cells commonly used in commercial energy storage systems.
Grid-Tied (On-Grid) Parameters:
Rated Power: 125kW continuous
Grid Voltage: 380V/400V (±15% tolerance, configurable for 480V systems)
Maximum AC Current: 190A
Grid Frequency: 45-55Hz / 55-65Hz (auto-detection)
Power Factor: >0.99 at rated power, adjustable from -1 to +1
Current THD: <3% at rated power
DC Component: <0.5% of rated AC current
Yes. The EGbatt-125kW supports full off-grid (islanded) operation with the following specifications:
Off-Grid Voltage: 380V/400V ±15%
Off-Grid Frequency: 50Hz/60Hz (selectable)
Voltage Control Accuracy: <1%
Voltage Unbalance: <2%
Output THD: <3% (even with nonlinear loads)
Optional STS (Static Transfer Switch) enables seamless grid/off-grid transition in <20ms
The PCS achieves full-power charge-to-discharge (and vice versa) switchover in <20 milliseconds. This rapid transition enables:
Effective peak shaving and demand charge management
Fast frequency response for grid support services
Smooth integration with variable renewable energy sources
Uninterrupted power supply for critical loads (with STS option)
Grid Compliance & Certifications
The EGbatt-125kW PCS architecture is designed to meet UL 1741 SA and IEEE 1547-2018 functional requirements. Certification testing is currently in progress. The system includes:
Configurable voltage and frequency ride-through (LVRT/HVRT)
Anti-islanding protection (IEEE 1547-2003 compliant)
Power quality management (THD, power factor, reactive power control)
Grid support functions (volt-var, freq-watt, soft start)
Full certification documentation and test reports will be available upon request for project planning and AHJ approval processes. Contact our engineering team for the current certification timeline.
Yes. The PCS features comprehensive grid fault ride-through capabilities:
Low Voltage Ride-Through (LVRT): Maintains grid connection during voltage sags down to 0% for specified durations per utility requirements
High Voltage Ride-Through (HVRT): Remains connected during voltage swells up to 130% of nominal
Active/Reactive Power Control: Dynamic current injection during faults to support grid recovery
Configurable Curves: Ride-through profiles can be adjusted to match regional grid codes (CA Rule 21, HECO, ERCOT, etc.)
The EGbatt-125kW includes comprehensive multi-layer protection:
DC Side Protection:
Reverse polarity protection
DC overvoltage/undervoltage
DC overcurrent
Precharge circuit for inrush current limiting
Insulation monitoring (optional)
AC Side Protection:
AC overvoltage/undervoltage
AC overcurrent
Short circuit protection
Overfrequency/underfrequency
Anti-islanding detection
Phase sequence protection
Surge Protection Device (SPD) Type 2
System Protection:
Overtemperature protection with automatic derating
Fan failure detection
Ground fault detection
Hardware interlock circuits (independent of software)
Fault logging and event recording
Integration & Installation
Standard Communication:
RS485: Modbus RTU for EMS/SCADA integration
CAN 2.0: Native BMS communication
Dry Contact I/O: 4 digital inputs (start/stop, fault reset), 3 relay outputs (running, fault, warning)
Optional/Planned:
Modbus TCP gateway (via external converter)
SunSpec-compliant register mapping
RESTful API for cloud-based EMS platforms
Ethernet port for local network integration
All communication protocols use industry-standard register maps and data structures for seamless integration with platforms like AutoGrid, GridPoint, CPower, and custom SCADA systems.
Dimensions (W×D×H):
Front-wiring (EGB-PCS125-L2M-3): 500mm × 650mm × 200mm (19.7" × 25.6" × 7.9")
Rear-wiring (EGB-PCS125-L2M-B3): 500mm × 680mm × 200mm (19.7" × 26.8" × 7.9")
Weight:
Front-wiring: 50kg (110 lbs)
Rear-wiring: 53kg (117 lbs)
Mounting Flexibility:
Vertical wall mounting (standard)
Horizontal rack mounting
Side-by-side modular arrangement
Compatible with standard 19" rack enclosures (with adapter kit)
The compact, lightweight design enables installation in space-constrained commercial facilities and simplifies handling during commissioning.
The EGbatt-125kW employs intelligent forced-air cooling with the following features:
Airflow Rate: 720 CFM (front-wiring) / 769 CFM (rear-wiring)
Noise Level: ≤65 dB at 1 meter
Temperature-Controlled Fans: Variable speed based on load and ambient temperature
Redundant Fan Design: Continued operation if single fan fails
Filter Access: Removable air filters for easy maintenance
Operating Temperature: -25°C to 60°C (derating above 45°C)
The smart cooling algorithm optimizes fan speed to balance thermal management, efficiency, and acoustic performance.
Yes. The EGbatt-125kW features advanced three-phase unbalance compensation capability:
Independent per-phase current control
Real-time load balancing across L1/L2/L3
Voltage unbalance ratio: <2% in off-grid mode
Reduces neutral current in 4-wire systems
Minimizes transformer stress and line losses
Improves overall system efficiency in commercial facilities with single-phase loads
This feature is particularly valuable for buildings with uneven single-phase load distribution (lighting, HVAC, office equipment).
Shipping Notice
EGBATT has set a high standard for shipping lithium batteries. As lithium ion batteries fall under DG (dangerous goods) category, they use high-quality DG boxes or DG wooden cases to pack the batteries along with thick foam. This ensures that the batteries are delivered to customers in the best possible condition and without any damage.
We accept shipping
- By express or Air shipping like UPS, DHL, Fedex.
- Shipping by sea to port or to door service.
- FAC to Customer's forwarder company in China.
EGBATT ensures that all of its batteries meet the MSDS and UN38.3 standards. The packaging requirements for lithium batteries shipped by sea depend on the Watt-hour rating for lithium ion cells or batteries, or the lithium metal content for lithium metal cells or batteries. The packaging needs to meet UN specifications or be strong and rigid packing that can withstand the shocks, mechanical handling, and loading encountered during transport.
Shipping Regulation
If you are an international customer, please note that products will be shipped directly from China. To place your order, please contact odmbattery@outlook.com manually, rather than ordering on the website, as shipping costs may be inaccurate for regions outside of the USA.
EGbatt understands the importance of proper handling and regulation compliance when it comes to shipping lithium ion batteries. We take great care to follow all regulations for sea and air shipping to ensure the safe and secure transport of these potentially hazardous materials.
Shipping lithium ion batteries comes with specific guidelines outlined by transportation authorities, including the International Air Transport Association (IATA) and the International Maritime Dangerous Goods (IMDG) code, to minimize the risk of fire or explosion during shipping. These guidelines cover packaging, labeling, and documentation requirements, among other things. At EGbatt, we stay up-to-date with all current regulations and guidelines to ensure we are shipping our products safely and responsibly. We understand the risks involved with transporting lithium ion batteries and take the necessary precautions to minimize those risks for both our customers and our employees.
