AC Block

EASYCUBE (261 kWh)

Sermatec · LFP · Liquid (battery) / Air (PCS)

261 kWh outdoor C&I energy storage cabinet with integrated 125 kW PCS, liquid-cooled battery compartment, and local EMS. Upper and lower compartment design isolates electrical and battery sections for safety. Certified for European grid connection across multiple country-specific standards including VDE, G99, and CEI.

261 kWh
Capacity
LFP
Chemistry
314Ah
Cell
Download Datasheet (PDF)

Specifications

Battery Parameters
Nominal Energy 261.24 kWh
Nominal Voltage 832V
Cell Type 3.2V / 314Ah, LFP
Cell Grouping 1P52S
Battery Pack Grouping (1P52S) x 5S
On-Grid Output
Rated Grid Voltage 400V
Grid Frequency 50/60 Hz
Rated Output Power 125 kW
Maximum Output Power 137.5 kW
Rated Output Current 180A
THDi 3% or less
Power Factor -0.99 to +0.99
Off-Grid Output
Off-Grid Voltage 400V
Off-Grid Frequency 50/60 Hz
Apparent Power 125 kVA
Max Apparent Power 137.5 kVA
Voltage THD 3% or less (linear load)
Off-Grid Parallel Units 6
General
System Efficiency 87% or higher (0.5P, 25 C, BOL)
Thermal Management PCS: forced air / Battery: liquid cooling
IP Rating IP55 (battery) / IP54 (electrical)
Corrosion Resistance C4-M (cabinet), optional C4-M (cooling unit)
Operating Temperature -30 to +50 C (derating above 45 C)
Altitude 4,000 m (derating above 2,000 m)
Dimensions (W x D x H) 976 x 1,532 x 2,428 mm
Weight 2,600 kg approx
Noise 75 dB(A) or less @1m
Communication Modbus RTU, Modbus TCP, MQTT, IEC 104

Key Features

  • Upper/lower compartment design isolating battery and electrical sections for thermal safety
  • Cell-level thermal isolation to prevent thermal runaway propagation between adjacent cells
  • Front wiring access eliminates cable trenches, reducing construction costs
  • Off-grid parallel operation up to 6 units for microgrid and backup applications
  • European grid code certified: EN 50549, VDE 4110/4120, UK G99, Spain NTS631, Italy CEI 021
  • Local HMI and cloud platform for remote monitoring and maintenance
Product Certifications
IEC 62619 IEC 63056 IEC 62477-1 IEC 61000 IEC 60730 UN 38.3 UL 9540A
Environmental Compliance
RoHS REACH EU 1542
About the Manufacturer
Sermatec
Shanghai, China · Founded 2017

Shanghai Sermatec Energy Technology Co., Ltd., founded in 2017, is a BNEF Tier 1 energy storage system manufacturer headquartered in Shanghai, China. The company produces liquid-cooled container and outdoor cabinet battery systems for C&I and utility-scale applications. Sermat...

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EASYCUBE (261 kWh) Datasheet
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