Low Frequency Solar Hybrid Inverters

Low Frequency Solar Hybrid Inverters RSI-LF-HY

RSI-LF-HY series is a low frequency hybrid solar inverter. In comparision with pure on-grid solar inverter, RSI-LF-HY series can not only feed-in power to grid, but also store PV power to battery, and power loads directly.

Combining the function of inverter, on-grid, MPPT solar charger, and battery charger to offer uninterruptible power support. Its comprehensive LCD display offers user configurable and easy accessible button operation, such as battery charging current, AC/solar charging priority, and acceptable input voltage based on different applications.

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Features

  • Rated power 2KW to 4KW
  • Smart LCD setting (Working modes, Charge Current, Charge Voltage, etc.)
  • Built-in MPPT 60A solar charge controller
  • MPPT Efficiency max 98%
  • Combining solar system, AC utility and battery power source to supply continuous power
  • Multiple operations: basic Grid-tie, Off-Grid, Grid-Interactive
  • Parallel operation with up to 3 units
  • Support CAN, RS485 monitoring function with free CD
  • WIFI/ GPRS remote monitoring (optional)
  • Compatible to generator

Applications

  • Home and office appliances
  • TV
  • Refrigerator
  • Fan
  • Lights
  • Computer
  • Other appliances

Downloads

CatalogRI-LF-HY datasheetsUser manualWarrantyCE Declaration of Conformity

Specifications

MODELRSI-2K-LF-HYRSI-3K-LF-HYRSI-4K-LF-HY
Nominal Battery System Voltage48VDC
INVERTER OUTPUT
Rated output power2000W3000W4000W
Rated output voltage and frequency230Vac / 50Hz
Rated output current8.7A13A17.4A
Output voltage precision230Vac±1%
Output frequency precision50Hz±0.1%
THD (Linear loads)Off grid≤2%;Grid discharge ≤3%;Grid charge ≤3%
Dynamic response speed（0←→100%）20ms
Power factorGrid discharge 99.9% & Grid charge 99.9%
Overload capability100%＜load≤110%,30 minutes; 110%＜load≤125%,1 minutes; 125%＜load≤150%,30 seconds;load＞150%,10 seconds; Short circuit,5 seconds
Grid / Off grid change time＜10ms
Output wavesine wave
Inverting efficiency 80% resistive loads≥92%≥93%
AC INPUT
AC input maximum current17.4A26A34.8A
Acceptable input voltage rangeDefaults 186Vac ~253Vac; Narrow 174Vac ~272Vac; Wide    95Vac ~272Vac
Nominal frequency50Hz / 60Hz
BATTERY
Rated input voltage48VDC
Allowed input DC voltage range40VDC ~ 62VDC
Low voltage alarm42VDC
High voltage alarm60VDC
SOLAR CHARGER & AC CHARGER
PV Open Circuit Voltage145VDC
Max Solar Charging Current60A60A
Max AC Charging Current40A60A80A
DISPLAY & PROTECTION FUNCTION
LED indicationSystematic operation, indication of charge and discharge, indication of fault
LCD displayoutput voltage, output current, grid voltage, grid current, voltage of storage battery, load power, chart of capacity
Protection FunctionInput LV protection;Input OV protection;Output overload protection;Output Short Circuit Protection
MECHANICAL SPECIFICATIONS
MountingWall mounted
Machine Dimensions (W*H*D)(mm)337*462*183mm337*462*183mm370*462*183mm
Package Dimensions (W*H*D)(mm)476*602*325mm476*602*325mm476*602*325mm
Net Weight (kg)2529.535
Gross Weight (kg)30.33338.5
OTHER
Communication terminalRS485 / CAN bus
Operation Temperature Range-25℃  ~ +50℃
Environmental Protection RatingIndoor(IP20)
Ambient humidity0 ~ 90% relative humidity(non-condensing)
Altitude≤3000m

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