Midea Group
Aqua-X261
Aqua-X261
  • Investment Savings

    Modular design with multi-channel MPPT integration saves installation and commissioning time by 50%.

    Intelligent temperature control, system temperature difference ≤ 4℃.

  • Ultimate safety

    AI global perception, accurately identifying thermal runaway risks, and fault isolation within milliseconds.

    Full-stack fire protection chain to prevent explosions.

  • Ultimate Performance

    Supports grid-connected and off-grid multi-scenario applications to ensure power continuity.

    Innovative BMS management extends battery life by 2 years and increases discharge capacity by 10% throughout its lifecycle.

  • Smart Operation and Maintenance

    AI smart cloud platform, status information pushed in seconds.

    Precise remote fault analysis reduceson-site maintenance workload by 40%.

Aqua-X261.
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  • DC-side Parameters
    Rated System Energy
    261 kWh
    Rated Power
    125 kW
    Battery Voltage Range
    702-936 V DC
    Cell Type
    LFP 3.2 V/314 Ah
    System configuration
    1P260S
  • PV-side parameter (optional with MPPT)
    Rated Power
    60 kW/60 kW*2 (optional: 1/2)
    Number of MPPTs
    4/8
    Rated Current
    4*45 A/2*4*45 A
    Voltage Range on PV-side
    150-672 V DC
    Full load minimum voltage on PV-side
    340 V DC
    Maximum open circuit voltage on PV-side
    672 V DC*

    * Actually, limited by the minimum battery voltage, the maximum open-circuit voltage for customer photovoltaics is 672V.
  • AC-side Parameters
    Rated Output Power

    125 kVA

    Maximum Input Power (optional with STS)
    250 kVA
    Maximum Power Access for Important Loads (Pptional with STS)
    125 kVA
    Current Distortion Rate
    < 3% (rated power)
    AC Voltage Range 607–759 V
    AC Voltage Harmonic
    < 3% (linear load)
    DC Component


    < 0.5% (rated current)


    Rated Voltage
    400 V AC
    AC Voltage Range
    340-460 V AC
    Frequency Range
    50 ± 5 Hz
  • System Parameters
    Operating Ambient Temperature Range
    -30°C to +55°C (> 45°C derating)
    Relative Humidity
    5%-95% RH (non-condensing)
    Maximum operating altitude
    2000 m
    Relative Humidity ≤100% RH (non-condensing)
    Max. Operating Altitude
    4000 m (13123 ft)
    Ingress Protection (IP) Rating

    IP55 (battery compartment)


    IP54 (equipment compartment)


    Maximum Efficiency for PCS
    98.9%
    Maximum Efficiency for MPPT (optional)
    99%
    Maximum Efficiency for STS (optional)
    99.5%
    On-grid and Off-grid Switching Time (including STS)
    < 20 ms
    Cooling Method
    Intelligent liquid cooling and forced air cooling
    Cycle Life
    ≥ 7000 cycles
    Weight
    ≤ 3000 kg
    Corrosion-proof Degree
    C3 (standard)
    C4 (optional)
    Dimensions (W × H × D)
    1800 × 2182 × 1548 mm(With lifting eyes)
    Fire Suppression System
    Smoke detector, heat detector, aerosol, horn strobe, fire hose coupling (optional), explosion-proof plate (optional)
    Communication Interface
    Ethernet, RS485, 4G
    Standard Compliance


    IEC 62477-1, IEC 62109-1/-2 (Models with MPPT modules), IEC 62619, IEC 60356, UN 38.3





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    All rights reserved. Subject to change without notice. Version 1.0 02/2026