Products / Liquid Cooling / ROCAS 522 AC

Representative product render. Final appearance may vary.

Liquid Cooling / C&I

ROCAS 522 AC

522 kWh | High-Capacity BESS

Large-capacity cabinet integrating battery, PCS, EMS, BMS, liquid cooling and fire protection. Supports peak shaving, demand response and parallel expansion.

522 kWh250 kW
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PRODUCT DATA

Technical specifications

AC / GRID-CONNECTED

Rated output250 kW
Overload1.1× continuous; 1.2× for 1 min
Rated voltage / wiring400 V (-15% to +15%); 3P+N+PE
Rated current360 A
Power factor-1 to +1
Grid frequency50/60 Hz ±2.5 Hz
THDI≤3%

AC / OFF-GRID

Voltage400/380 V ±3%
Frequency50/60 Hz
THDU<3% with linear load
Unbalanced load100%

BATTERY

Cell chemistry / ratingLFP; 3.2 V / 314 Ah
Configuration2P260S
Energy at 25°C / 0.5P522.496 kWh
DC range / nominal702-936 V / 832 V
Cycle life8,000 cycles (0.5P, 25 ±2°C, 70% SOH)

SYSTEM / ENVIRONMENT

Off-grid switching<20 ms (web)
Dimensions W × D × H1,900 ×1,350 ×2,300 mm
Weight5,340 kg
Noise<75 dB
Enclosure / battery packIP54 / IP67
System efficiency≥88%
Ambient temperature-30 to +55°C
Humidity≤95% RH, non-condensing
CoolingLiquid cooling
Fire suppressionAerosol
CommunicationsEthernet / CAN / RS485
Maximum altitude2,000 m
Listed standards*IEC 62933; IEC 62477; IEC 62619; IEC 63056; EC61000 [source spelling]; UN 38.3
Technical notes & source documentation

PDF gives IP54 (pack IP67); web description gives IP55. Web grid frequency range differs. Confirm enclosure and grid settings.

Reference model: SE522L-250K. Listed standards are source references; model-specific conformity documentation is available for project review.

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