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Technical data

All figures for the Huawei LUNA2000-21-S1 from the manufacturer datasheet and manual

Nominal voltage: 450 V in a single-phase system, 600 V in a three-phase system
Operating voltage range: 350 to 560 V in a single-phase system, 600 to 980 V in a three-phase system

Usable capacity: 20.7 kWh
Cell technology: Lithium iron phosphate (LiFePO4)
Depth of discharge: 100 %
Scalability: Up to four systems in parallel on one inverter, 82.8 kWh
Module sizes: Power module 590 x 255 x 150 mm and 10 kg, battery module 590 x 255 x 360 mm and 68 kg at 6.9 kWh
System architecture: 1 x LUNA2000-10KW-C1 power module plus 3 x LUNA2000-7-E1 battery modules of 6.9 kWh each

Communication: RS485, FE (Ethernet) and CAN
Compatible inverters: SUN2000-2/3/3.68/4/4.6/5/6KTL-L1, SUN2000-3/3.68/4/4.6/5/6K-LB0, SUN2000-8/10K-LC0, SUN2000-3/4/5/6/8/10KTL-M1, SUN2000-5/6/8/10/12K-MAP0, SUN2000-12/15/17/20/25K-MB0, SUN5000-3/6K-LB0, SUN5000-8/12K-MAP0, SUN5000-17/25K-MB0
Display: SOC status indicator and LED indicator

Certifications: CE, RCM, CEC, VDE 2510-50, IEC 62619, UN 38.3, ISO 13849, REACH, RoHS

Source: manufacturer datasheet and installation manual, as of September 2026. Subject to change, the manufacturer documents prevail.

Huawei LUNA2000-21-S1 as shown by the manufacturer

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