ESG-M Series | 125kW / 261kWh

Liquid-Cooled Outdoor All-in-One Utility & C&I ESS | 832Vdc Nominal (728-936V) | 125kW Rated Power | 261kWh (314Ah) | Three-Phase 400Vac | IP55

The MUST ESG-M Series (ESG-M261) is an outdoor liquid-cooled energy storage system designed for utility-scale applications, microgrids, and demanding industrial parks. Enclosed in a heavy-duty IP55 cabinet, it integrates a 125kW PCS, 261kWh (314Ah LFP) battery pack, intelligent BMS, cloud EMS, optional STS fast-switching modules (150kW-600kW), and a 120kVA isolation transformer. Featuring a triple active fire protection system (gas detection + aerosol + water firefighting) and intelligent liquid thermal management, it supports multi-cabinet parallel operation up to 10 units (2.61MWh) and predictive maintenance via AI self-learning algorithms.

Description

Description

  • Triple Active Fire Protection: Multi-tier defense combining gas detection, aerosol fire suppression, and water-based firefighting interfaces to prevent thermal runaway.
  • Intelligent Liquid Cooling: Thermal management minimizes cell temperature variance within the PACK, lowering auxiliary power loss and enabling 8,000+ cycles.
  • Complete All-in-One Modular Integration: Single cabinet houses BAT, PCS, BMS, EMS, optional PV DC MPPT modules (45kW/60kW), STS module, and isolation transformer.
  • Multi-Scenario Operation & STS Switching: Compatible with grid-tied, off-grid, and generator-hybrid microgrids with optional 150kW/300kW/600kW STS power switching.
  • Cloud-Smart O&M & RUL Prediction: Integrated local LCD touchscreen and cloud platform featuring intelligent balancing, automatic fault localization, and Remaining Useful Life (RUL) forecasting.
  • Plug-and-Play Dynamic Scalability: Supports on-board transportation for rapid on-site commissioning; parallel expandable up to 10 cabinets (2.61MWh).
Technical Parameters ESG-M261
Rated AC Power / Current 125 kW / 180 A
Rated AC Voltage / Wiring 400 Vac, 3W+N+PE
Rated AC Frequency 50/60 Hz
Power Factor / Total Current Distortion (THDi) 1.0 leading – 1.0 lagging / < 3% (at rated power)
Total Voltage Distortion (THDv) < 3% (linear load)
Battery Chemistry / Cell Specification Lithium Iron Phosphate (LFP) / 314 Ah
Rated Energy Capacity / Configuration 261 kWh / 1P260S
Rated System Voltage / Operating Range 832 Vdc / 728 Vdc – 936 Vdc
Max. Charge / Discharge Rate & Current 0.5P rate / 157 A
Cycle Life ≥ 8000 cycles
Optional PV Input Power 45 kW / 60 kW
Optional PV Voltage Range (MPPT) 250 V – 530 Vdc
Max. PV Current / Number of MPPTs 160 A * 4 / 4 MPPTs
Optional In-Cabinet Isolation 120 kVA Isolation Transformer
Optional Power Switching (STS) 150 kW / 300 kW / 600 kW STS
Standby Power Consumption < 0.1% rated power (excluding transformer)
Cooling Method Intelligent Liquid Cooling
Fire Protection System Triple System: Gas Detection + Aerosol Suppression + Water Firefighting
Dimensions (WHD) / Fully Equipped Weight 1600 * 2300 * 1350 mm / 3330 kg
Ingress Protection Rating IP55
Operating Ambient Temperature -25°C to 60°C (derating above 45°C)
Relative Humidity / Max. Altitude 0-95% (non-condensing) / Up to 3000m (derating >2000m)
Audible Noise Level < 78 dB
Display & HMI LCD Touchscreen
Communication Interfaces BMS: CAN / EMS: Ethernet, RS485
Warranty / Certifications 10 years / CB, CE EMC, UN38.3, RoHS