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SunFusion Echo 2.0 4T > 12kW Inverter/Battery Cabinet with 42kWh (3 Battery Modules)
Sunfusion Echo 2.0 4T for Indoor or Outdoor - Partial Home Backup
The ECHO 4T 42kWh/12kW is a true partial home backup system. SunFusion did not want to follow the competitors, so
they gave the homeowners what they needed for a real arbitrage and TOU usage. The average Time of Use period (TOU) is from 4pm -9pm. Most homes use 10 to 25kWh in a single night.
This is why the utility changed the time period when there is no sun. The best savings is by charging from the sun, as long as you have adequate solar PV installed.
SunFusion Echo 2.0 4T Battery Cabinet (Interior)
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Cabinet Type
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Aluminum 5052
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Cabinet Finish
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Gun Metal Finish
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Forced Air Control
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2 Thermal fans at 41dB
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Battery Module
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CATL 271Ah 6LH3L8 Cell in each 14KWh
SunFusion Battery Module.
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Cell Type Ultra-Safe
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Lithium Iron Phosphate Large Prismatic Cells
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Battery Includes
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MODULES16 CATL 271Ah 6LH3L8 cells,
1-175A battery breaker, Propriatery BMS.
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Cable Type (In AC load & grid outbreaker only)
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Min, Polar wire Artic-Ultraflex Blue; AUF-8 Red, Black Amp rating to 81 amps at 40°C (104°F) max used 63A AC.
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Battery Cable Type
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Polar wire Artic Ultraflex Blue; AUF-#1 Red, Black Amp rating to 223 amps at 40°C (104°F) OCP at 175A DC.
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SunFusion Echo 2.0 4T Battery Cabinet (Exterior)
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Warranty
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25 year System Warranty
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Rapid Shutdown Switch (RSS)
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Min 5 sec
Max 15 sec
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Forced Air Control
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Air vents located bottom and top
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Security
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Lockable door
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Dimension
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62.5” x 21.5” x 38.5” (4T)
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MAX Weight
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(4T) 959 lbs
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SunFusion Echo 2.0 4T Battery Capacity Specs
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Capacity
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Minimum:
28kWh
Maximium: 42kWh
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Maximum Charge / Discharge Rate
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Off-Grid:
9kW
On-Grid: 15kW
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Inverter: Sol-Ark 12kP PV Specifications
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Max allowed PV Power
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13.5KW
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Max PV power delivered to Battery & AC outputs
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15-KW
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Max DC Voltage
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500V@18A; 450V@20A
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MPPT Voltage Range
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150-425V
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Starting Voltage
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175V
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Number if MPPT
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2
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Solar Strings Per MPPT
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2 w/o fuses, 3 w/ fuses
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Max DC current per MPPT
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20A@300V, 18A@400V
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Max AC Coupled Input (Micro/String Inverters)
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9.6-KW / 9.6-KW
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AC Output Power 15kW on Grid & 9kW Off-Grid
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Connections
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120/140/208V Split Phase
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Continuous AC Power to Grid (on-grid)
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15-KW 62A L-L
(240V)
4.8-KW 40A L-N
(120V)
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Continuous AC Power to Load (off-grid)
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9-KW 37.5A L-L
(240V)
4.8-KW 40A L-N
(120V)
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Surge AC power 10sec
Surge AC power 16ms
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16-KVA L-L (240V)
25-KVA L-N (120V)
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Parallel Stacking
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2-8 (240V), 2,3,6,9 (208V)
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Frequency
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60/50Hz
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Continuous AC power with Grid or Generator
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15.1-KW 63A L-L (240V)
7.6-KW 63A L-N (120V)
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CEC Efficiency
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97.5% (Peak 99.5%)
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Idle Consumption typical - no load
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60W
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Sell Back Power Modes
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Limited to household or Full Grid-Tied
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Design (DC to AC)
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Transformerless DC
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Response Time (Grid-Tied to Off-Grid)
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4ms
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Power Factor
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+-0.9 - 1.0
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Echo E2.0 -
Output Power 14000W Per Module
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Type
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LiFePO4
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Nominal DC
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48V
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Capacity
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271 - 14.2kWh
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Voltage Range (Min. / Max.)
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44.0 - 56.5V
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Continuous Battery Charging Output
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175A
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Charging Curve
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3-stage w/ equalization
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Grid to Battery Charging Efficiency
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97.0%
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External Temperature Senor
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Included
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Current Shunt for Accurate % SOC
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Integrated
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External Generator Start Based on Voltage or % SOC
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Integrated
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Communication to Lithium Battery
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CanBus & RS485
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Sol-Ark 12k Inverter Specifications
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Dimensions
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30" x 18.30" x 10.00"
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Weight
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78 lbs
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Enclosure
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NEMA type 3R
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Operating Temperature
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-13°F - 131°F
(-25°C - 55°C)
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Wi-Fi Communication
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Included
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Standard Warranty
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10 year standard by Manufacturer
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Protection Certifications
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Certifications: Electronics certified safety by SGS labs to NEC & UL specs - NEC 690.4B & NEC 705.4/6
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Integrated: PV DC disconnect switch - Nec 240.15; Ground Fault Detection - Nec 690.5; PV Rapid shutdown control - NEC 690.12; PV Arc Fault detection - 690.11/UL1699B; PV input lightning protection; AC input/output 50A breakers; Battery breaker / disconnect; User wiring enclosure with 3/4” & 1” knock-outs;
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Optional: Solar Flare/EMP Hardened to 2015 MIL-STD-461G (Independently tested June 2018)
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Compliance
| CE, UL 9540, 1973 compliance, UL 1973, UL 9540A (batteries), and FCC part 15 Class B compliant. Certified to UL 1741, PCS Utility Compliant. (inverter) CPUC Inteconnection Rule 21.
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Documentation
Sol-Ark 12k Inverter: Documentation
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