Darfon

HB51 Hybrid Inverter

Model Number: HB51
With the Darfon HB51 hybrid transformerless inverter, energy storage can be added to homes and small commercial buildings, with or without a PV system. The HB51 can be AC-coupled with existing PV systems, either with string or micro inverters, to allow continuous use during utility outage. To facilitate easy installation, the HB51’s distribution box includes quick disconnect terminals, DC and battery disconnects, AC breakers, battery connectors and optional generator contactor. The HB51 supports a wide range of applications, including Peak shaving, AC coupled, Backup, TOU with or without feed-in, and Remote Communication.
  • Features
    • AC-coupling to string or micro inverters
    • Up to 7kW continuous output to load
    • Three-wire inverter for 240V and 120V direct connection
    • Compatible with lithium or lead-acid batteries
    • 5-year standard warranty with 5-year extension option
    • Generator kit, JQ.D3C01.D01, sold separately
  • AC-Coupling with PV String Inverters
  • AC-Coupling with Micro Inverters
  • AC OUTPUT TO LOAD
    With Grid Absent
    With Grid Present
    Output Power (Continuous) @25°C
    5500W
    7000W
    Overload 40/20/5/1s @25°C & 240V
    5500/--/6500/7500W
    --/9600/--/--W
    Overload 40/5/1s @25°C & 120V
    2750/3250/3750W
    --
    Rated Output Current (RMS)
    23A
    29A
    Output Frequency
    50/60Hz (Auto Sensing)
    Output Voltage and Accuracy
    L-N: 120V ± 3%; L-L: 240V ± 3%
    Output Voltage Limits
    L-L: 180 to 280V (240V Nominal)
    Total Harmonic Distortion (THD)
    < 5% at rated power
    Power Factor
    > 99%
  • AC INPUT FROM GRID
    Automatic Transfer Power Rating
    7000W
    Typical Transfer Time
    20ms
    Input Voltage Range
    L-L: 180 to 280V (240V Nominal)
    Input Frequency Range
    45 to 54.9Hz / 55 to 65Hz
  • AC OUTPUT TO GRID (GRID SUPPORT)
    Output Power (Continuous) @25°C
    5000W
    Grid Feed-In Current Range
    0 to 24A (@240V)
    Grid Feed-In Voltage Range
    L-L: 211 to 264V ± 3.0V
    Grid Feed-In Frequency Range
    49.3 to 50.5Hz / 59.3 to 60.5Hz ± 0.05Hz
  • EFFICIENCY
    Peak Battery to Grid
    92%
    System Standby Power
    20W
    System Idle Power
    < 8W
  • DC BATTERY CHARGER
    Max Charge / Discharge Current
    100A / 150A
    DC Voltage Range
    44 to 58V (48V Nominal)
    Compatible Battery Types
    AGM, Gel, Li-ion, LiFePO4, Custom
    Suggested Battery Capacity Range
    200 to 600Ah
  • GENERAL SPECIFICATIONS
    Product Weight
    33.6kg (74.0 lb)
    Product Dimensions (HxWxD)
    856x455x150mm (33.7x18x6 in)
    Protection Rating
    NEMA 1 / IP20
    Operating Temperature
    -20 to 50°C (-4 to 122°F), power derated > 40°C (104°F)
    Min Startup Temperature
    0°C (32°F)
    Storage Temperature
    -25 to 70°C (-13 to 158°F)
    Compliances
    UL 1741 SA, CSA C22.2, IEEE 1547A, IEEE 1547.1, FCC Class B
*All specifications are subject to change without notice.
HB51 Brochure
HB51 Inverter Firmware v5.5
HB51 Charger Firmware v34.1
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