- Ultra-low noise design (<35 dB)
- Stacked design with flexible capacity expansion compatible with both new and old batteries
- Millisecond-level seamless switching ( <4ms）
- Supports DC arc protection
- Charging/discharging at 1 C at-20°C stable operation
- One-click upgrade with one-click configuration
Technical parameter | GW5K-ETA-G20 | GW6K-ETA-G20 | GW8K-ETA-G20 | GW10K-ETA-G20 | GW12K-ETA-G20 | GW15K-ETA-G20 | GW20K-ETA-G20 | GW25K-ETA-G20 | GW30K-ETA-G20 |
Battery Input Parameters | |||||||||
Battery Type | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) | Lithium iron phosphate (LIFEPO₄) |
Rated voltage (V) | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 |
Voltage range (V) | 700~950 | 700~950 | 700~950 | 700~950 | 700~950 | 700~950 | 700~950 | 700~950 | 700~950 |
Starting voltage (V) | 720 | 720 | 720 | 720 | 720 | 720 | 720 | 720 | 720 |
Maximum Continuous Charging Current (A) | 6.7 | 8.1 | 10.7 | 13.4 | 16.1 | 20.1 | 26.7 | 33.3 | 40.0 |
Maximum continuous discharge current (A) | 7.4 | 8.9 | 11.8 | 14.7 | 17.7 | 22.1 | 29.4 | 36.7 | 44.1 |
Maximum Charging Power (KW) | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Maximum Discharge Power (KW) | 5.5 | 6.6 | 8.8 | 11 | 13.2 | 16.5 | 22 | 27.5 | 33 |
Photovoltaic Input Parameters | |||||||||
Maximum Input Power (KW) | 10 | 12 | 16 | 20 | 24 | 30 | 40 | 50 | 60 |
Maximum input voltage (V) *1 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
MPPT Voltage Range (V) *2 | 120~950 | 120~950 | 120~950 | 120~950 | 120~950 | 120~950 | 120~950 | 120~950 | 120~950 |
Starting voltage (V) | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
Rated input voltage (V) | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 |
Maximum MPPT input current (A) | 21/21/21 | 21/21/21 | 21/21/21 | 21/21/21/21 | 21/21/21/21 | 21/21/21/21 | 21/21/21/21 | 21/21/42/42 | 21/21/42/42 |
Maximum short-circuit current of MPPT (A) | 26/26/26 | 26/26/26 | 26/26/26 | 26/26/26/26 | 26/26/26/26 | 26/26/26/26 | 26/26/26/26 | 26/26/52/52 | 26/26/52/52 |
MPPT quantity | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 |
Number of strings per MPPT input channel | 1/1/1 | 1/1/1 | 1/1/1 | 1/1/1/1 | 1/1/1/1 | 1/1/1/1 | 1/1/1/1 | 1/1/2/2 | 1/1/2/2 |
Grid-connected output parameters | |||||||||
Power rating (KW) | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Rated output apparent power (KVA) | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Rated input apparent power (KVA) | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Maximum output apparent power (KVA) *3 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Maximum Input Apparent Power (KVA) | 43.5*4 | 43.5*4 | 43.5*4 | 43.5*4 | 43.5*4 | 43.5*4 | 43.5*4 | 55.2*5 | 55.2*5 |
Rated voltage (V) | 220/380, 230/400, 3L/N/PE | ||||||||
Voltage range (V) | 180~260 | 180~260 | 180~260 | 180~260 | 180~260 | 180~260 | 180~260 | 180~260 | 180~260 |
Rated frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
Maximum Output Current (A) *4 (@380V) | 7.6 | 9.1 | 12.2 | 15.2 | 18.2 | 22.8 | 30.4 | 37.9 | 45.5 |
Maximum Output Current (A) *4 (@400V) | 7.3 | 8.7 | 11.6 | 14.5 | 17.4 | 21.8 | 29.0 | 29.0 | 43.5 |
Maximum input current (A) *4 | 63.0*4 | 63.0*4 | 63.0*4 | 63.0*4 | 63.0*4 | 63.0*4 | 63.0*4 | 80.0*4 | 80.0*4 |
Total current waveform distortion rate | <3% | <3% | <3% | <3% | <3% | <3% | <3% | <3% | <3% |
Off-grid output parameters | |||||||||
Rated apparent power (KVA) | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 25 | 30 |
Maximum Apparent Power (KVA) *5 — Off-grid | 5.5 (10.0, 10s) | 6.6 (12, 10s) | 8.8 (16.0, 10s) | 11 (20.0, 10s) | 13.2 (24, 10s) | 16.5 (30, 10s) | 22 (30.0, 10s) | 27.5 (45.0, 10s) | 33 (45.0, 10s) |
Maximum Apparent Power (KVA) *5 — Grid connection | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 | 55.2 | 55.2 |
Rated voltage (V) | 220/380, 230/400, 3L/N/PE | ||||||||
Rated Frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
Maximum Current (A) *5 | 11.4 | 13.7 | 18.2 | 22.8 | 27.3 | 33.4 | 33.4 | 50 | 50 |
Power factor | ~1 (adjustable from 0.8 to 0.8 lag) | ||||||||
Total Voltage Waveform Distortion Rate (@Linear Load) | <3% | <3% | <3% | <3% | <3% | <3% | <3% | <3% | <3% |
Productiveness | |||||||||
Maximal efficiency | 98.00% | 98.00% | 98.00% | 98.10% | 98.10% | 98.10% | 98.10% | 98.20% | 98.20% |
European Efficiency | 96.40% | 96.90% | 97.10% | 97.20% | 97.20% | 97.30% | 97.30% | 97.40% | 97.40% |
Maximum efficiency on the battery side ↔ AC side | 98.00% | 98.00% | 98.00% | 98.00% | 98.00% | 98.00% | 98.00% | 98.00% | 98.00% |
Protect | |||||||||
String Current Monitoring | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Insulation impedance testing | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Residual current monitoring | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Input Reverse Protection | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Battery Reverse Connection Protection | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Island Protection Against Voltage Surges | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Overcurrent Protection | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
AC Short-Circuit Protection | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Overvoltage Protection | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
DC Switch | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble | Ensemble |
Direct Street Flood Protection | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) | Level 2 (Optionally Level 1) |
AC Surge Protection | Secondary | Secondary | Secondary | Secondary | Secondary | Secondary | Secondary | Secondary | Secondary |
DC Arc Protection | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Optional |
Essential parameter | |||||||||
Working Temperature Range (°C) | -35~+60 | -35~+60 | -35~+60 | -35~+60 | -35~+60 | -35~+60 | -35~+60 | -35~+60 | -35~+60 |
Relative humidity | 0~100% | 0~100% | 0~100% | 0~100% | 0~100% | 0~100% | 0~100% | 0~100% | 0~100% |
Maximum working altitude (m) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) | 4000 (load reduced from >2000) |
Cooling-down method | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling | Smart Air Cooling |
Human-computer interaction | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP | LED, WLAN+APP |
Communication Method (BMS) | CAN | CAN | CAN | CAN | CAN | CAN | CAN | CAN | CAN |
Communication mode | RS485, WIFI+LAN+Bluetooth; optional 4G+Bluetooth | ||||||||
Weight (Kg) | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 |
Size (Width × Height × Thickness, mm) | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 | 800×340×270 |
Noise (dB) | ≤35 | ≤35 | ≤35 | ≤40 | ≤40 | ≤40 | ≤40 | ≤45 | ≤45 |
Levels of protection | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 |
Way to install | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing | Wall-mounted/Landing |
Attestation | |||||||||
Grid Connection Standards | IEC/EN 61000-6-1/-2/-3/-4, IEC/EN 62920, CISPR 11, EN 55011, AS/NZS 61000.6.3/.4, AS 61000.6.4 | ||||||||
Safety Standards | IEC62109-1/-2, IEC 63037 | ||||||||
EMC | IEC/EN 61000-6-1/-2/-3/-4 | ||||||||
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