125kW/261kWh Liquid-Cooled BESS
PV Ready @ 125kW
Micro-Grid Ready
125kW/261kWh Liquid-Cooled BESS
The MEGATRON 125kW/261kWh and 130kW/261kWh are compact, all-in-one liquid-cooled C&I battery energy storage systems using LFP chemistry. The 125kW is IEC-compliant for global markets; the 130kW is UL-compliant for North America. Both deliver peak shaving, valley filling, and backup power in a single IP55-rated cabinet integrating battery modules, PCS, cooling, fire suppression, and EMS for plug-and-play deployment. Up to five units can be installed in parallel for up to 650kW / 1.3MWh capacity.
Model Comparison
Global — IEC Compliant
125kW / 261kWh
| AC Voltage | 400V / 50Hz |
| Rated Current | 198.5A |
| DC Voltage Range | 728–949V |
| Transfer Time | <50ms |
| Operating Temp | -30°C to +55°C |
| Weight | 2,600kg |
| Dimensions (W×H×D) | 1050×2450×1520mm |
| Black Start | Included |
North America — UL Compliant
130kW / 261kWh
| AC Voltage | 480V / 60Hz |
| Rated Current | 165.4A |
| DC Voltage Range | 728–936V |
| Transfer Time | <20ms |
| Operating Temp | -25°C to +50°C |
| Weight | 2,750kg |
| Dimensions (W×H×D) | 1050×2450×1500mm |
| Black Start | Included |
Common Specifications
Battery
261kWh
LFP 314Ah, 832V nominal
Depth of Discharge
98%
≤0.5C charge/discharge
Scalability
Up to 5 Units
Off-grid parallel, 650kW / 1.3MWh
Protection
IP55
Outdoor rated, C5 optional
PCS Efficiency
98.6%
Maximum PCS efficiency
Power Factor
-1 to +1
Fully adjustable, both models
System Features
Cooling & Safety
Intelligent liquid cooling for batteries, forced air for PCS. Aerosol + water fire suppression with optional pack-level protection. Smoke, heat, and hydrogen detectors. Explosion-relief vents (130kW). Reverse battery, anti-islanding, overcurrent, short-circuit, and Type II surge protection.
EMS & Monitoring
Real-time monitoring via Ethernet/CAN/RS485 with Modbus RTU/TCP. The 130kW adds IEC 61850/MQTT and a 10.1″ touchscreen. WiFi/4G/LAN/Bluetooth connectivity. Supports VPP, demand response, and energy arbitrage strategies.
Applications
Businesses & factories, shopping & distribution centers, office buildings, schools & libraries, island communities, energy trading companies, and EV charging stations.
General Parameters
Max altitude 3,000m. Noise ≤75dB. Power factor adjustable -1 to +1. Bottom/side cable entry. Console model installation. Humidity 10–95%.
Certifications
North America / UL
UL 1973
UL 9540A
UL 9540
NFPA 68
NFPA 69
NFPA 855
UN 38.3
UL 9540A
UL 9540
NFPA 68
NFPA 69
NFPA 855
UN 38.3
International / IEC
IEC 62619
IEC 62477
IEC 63056
IEC 62040
IEC 62477
IEC 63056
IEC 62040
Symtech Solar provides full engineering support for every MEG 125kW and 130kW deployment — from system sizing and load profile analysis through to factory acceptance testing, shipping, and commissioning documentation. Contact us today for project-specific sizing and factory-direct pricing.
Liquid Cooled
Energy Storage Systems
BESS components include: 261kWh battery system, 125kW or 130kW PCS, MSD switch, EMS/BMS, AC distribution module, storage cabinet, heat/smoke detectors, liquid cooling system, fire suppression system, and documentation (installation manuals, certificates, usage guide).
Common Applications
- Commercial and industrial facilities, businesses, factories
- Shopping and distribution centers
- Office buildings, schools, libraries
- Micro-grids, remote/island communities
- Energy trading companies
- EV charging stations
BESS Benefits
- All-in-one pre-installed design for simplified installation
- Multi-layer safety with integrated protections
- High-efficiency output (up to 98.9% PCS efficiency)
- Scalable parallel operation and intelligent control
- Wide temperature range and AC-coupled PV compatibility
- Energy independence when paired with PV
125kW/261kWh Liquid-Cooled BESS
Include
Each MEGATRON 125kW/261kWh Liquid-Cooled BESS outdoor cabinet is pre-engineered, factory-assembled, and ready for installation.
System Includes (Standard):
- 261kWh Liquid Cooled Battery System (LFP, 314Ah cells, 5 × 52.25kWh packs, 1P260S configuration)
- Power Conversion System (PCS): 125kW (400V/50Hz, global/IEC) or 130kW (480V/60Hz, North America/UL)
- MSD Switch
- Energy Management System (EMS) with real-time monitoring
- High Voltage Units (BMS, two-tier for precise SOC/SOH)
- AC Distribution Module
- Storage Cabinet (IP55-rated, outdoor console model)
- Heat and Smoke Detectors (plus hydrogen in 130kW)
- Intelligent Liquid Cooling System (batteries, 5kW capacity in 130kW variant)
- Aerosol + Water Fire Suppression System (optional pack-level)
- Installation Manuals, Certificates, Usage Guide, etc.
Key Technical Notes:
- Bidirectional on/off-grid operation with seamless transfer (<50ms for 125kW, <20ms for 130kW) and black-start (130kW).
98% DoD, ≤0.5C charge/discharge rate - Scalable: up to 5 units in parallel (1 primary + 4 secondary) for 650kW / 1.3MWh total
- Region-specific: 125kW for 400V/50Hz grids (IEC certifications); 130kW for 480V/60Hz grids (UL 1973/9540, NFPA 855 compliance)
125
PV System
(kW)
125~130
PCS
(kW)
261
Battery
(kWh)
Sizes are subject to change without notice.
Thanks for Inquiring About MEGATRON 125kW/261kWh Liquid-Cooled BESS PV Kits
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