Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
ISI-501-248A is the model of this series: rated power 500W, typical efficiency 88%.
ISI-501 series integrates a DC/AC True Sine Wave Inverter and a MPPT charger. This series is a high performance true sine wave DC/AC inverter which converts the DC electricity from a system consisting of batteries and solar panels. ISI-501 is not only a high frequency designed inverter but also fully digitally controlled by an advanced microprocessor. With true sine wave output, ISI-501 series can provide 500W continuously, 550W for 60 seconds, and 1000W for 30 AC-cycles. This series incorporates a MPPT solar charger, including the constant current and constant voltage charging characteristics.
Features
- True sine wave output (THD<3%)
- High surge power up to 1000W
- High efficiency up to 88%
- High frequency design
- Thermosstatically controlled cooling fan
- Protections: Bat. low alarm / Bat. low shutdown / Over voltage / Over temp. / Output short / Input polarity reverse / Overload
- Built-in 500W MPPT solar charger, MPPT efficiency:98%(Typ.)
- Built-in remote ON-OFF control
- Built-in battery low relay contact
- LED indicator for operation status and battery capacity
- 3 years warranty
Specifications
INVERTER SECTION
- RATED POWER
- 500W
- MAXIMUM OUTPUT POWER (Typ.)
- 550W for 60 sec. / surge power 1000W for 30 cycles (112, 212 models : 495W for 60 sec. / surge power 900W for 30 cycles)
- AC VOLTAGE
- Factory setting set at 230VAC 200 / 220 / 230 / 240VAC selectable by setting button S.W
- FREQUENCYNote.9
- Factory setting set at 230VAC 50±0.1Hz 50/60Hz selectable by setting button S.W
- WAVEFORMNote.1
- True sine wave (THD<3%)
- AC REGULATION (Typ.)
- ±3%
- FRONT PANEL INDICATOR
- Fault and operation status, Charger status, Battery capacity
- BAT. VOLTAGE
- 48V
- VOLTAGE RANGENote.3,5
- 42 ~ 60VDC
- DC CURRENT (Typ.)Note.7
- 15A
- NO LOAD CURRENT DRAW (Typ.)
- 0.32A
- OFF MODE CURRENT DRAW (Typ.)
- ≦1mA
- EFFICIENCY (Typ.)Note.2
- 88%
- OVER TEMPERATURE
- Shut down o/p voltage, re-power on to recover
- OUTPUT SHORT
- Shut down o/p voltage, re-power on to recover
- OVER LOAD (Typ.)
- 110% load for 60 sec. Protection type : Shut down o/p voltage, re-power on to recover
BATTERY SECTION
- CHARGER CURRENT (Typ.)
- 8.5A
- BATTERY TYPE
- Open & sealed Lead Acid
- FUSE
- 20A*2
- BAT. LOW ALARMNote.3
- 45V
- BAT. LOW SHUTDOWNNote.3
- 42V
- REVERSE POLARITY
- By internal fuse open
MPPT / SOLAR SECTION
- MPPT CHARGER EFFICIENCY (Typ.)
- 98%
- OPEN CIRCUIT VOLTAGE RANGE
- 90 ~ 160V
- MPPT RANGE
- 70 ~ 160V
- SOLAR INPUT CURRENT (Typ.)
- 4.5A
- SOLAR INPUT POWER (Typ.)
- 500W
GENERAL SECTION
- WORKING TEMP.Note.4
- -20 ~ +40℃ @ 100% load ; 60℃ @ 50% load
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -30 ~ +70℃ / -22 ~ +158℉, 10 ~ 95% RH non-condensing
- VIBRATION
- 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes
- SAFETY STANDARDS
- IEC62368-1 CB, EAC TP TC 004 approved; Meet BS EN/EN62368-1
- WITHSTAND VOLTAGE
- Bat I/P - AC O/P:3.0KVAC AC O/P - FG:1.5KVAC
- ISOLATION RESISTANCE
- Bat I/P - AC O/P, Bat I/P - FG, AC O/P - FG: 100M ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 class B, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,8, BS EN/EN55035, EAC TP TC 020
- MTBF
- 565.4K hrs min. Telcordia SR-332 (Bellcore) ; 57.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 205*158*67mm (L*W*H)
- PACKING
- 2.35Kg; 6pcs/15.1Kg/1.55CUFT
Test conditions and notes9
- 1.THD is tested by rated power, linear load at 13V,26V,52V input voltage.
- 2.Efficiency is tested by 350W, linear load at 13V,26V,52V input voltage.
- 3.The tolerance of each voltage value by models is : 112/212→±0.5V ; 124/224→±1V ; 148/248→±2V.
- 4.Output derating capacity referenced by curve 1.
- 5.Input derating capacity referenced by curve 2.
- 6.All parameters not specified above are measured at rated load, 25℃ of ambient temperature and set to factory setting.
- 7.DC current is tested by 500W, linear load at 12V,24V,48V input voltage.
- 8.The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
- 9.Type F for 60Hz only.
Technical drawings
Typical applications
- Home appliance
- Power tools
- Portable equipment
- Yacht
- Vehicle
Downloads
Catalogues1
FAQ
What applications is the Mean Well ISI-501-248A best suited for?
This model is suited for mobile, off-grid, and backup power applications that need a 500W true sine wave inverter with an integrated MPPT solar charger. It is a practical fit for sensitive AC loads where cleaner output and battery-based operation are important.
What makes this inverter different from a basic DC-AC inverter?
The ISI-501-248A combines a true sine wave inverter with a built-in 500W MPPT solar charger, so it offers more than simple DC-to-AC conversion. It also includes remote ON-OFF control, battery low relay contact, LED status indication, and a broad set of protection functions.
Does this model support surge loads above its rated power?
Yes. The unit is rated for 500W continuous output and supports surge power up to 1000W. That helps it handle short startup demands better than a unit designed only for steady-state loading.
What kind of output waveform does the ISI-501-248A provide?
This model provides true sine wave output with total harmonic distortion below 3%. That makes it a better choice for equipment that is more sensitive to output waveform quality than it would be with a modified sine wave inverter.
What battery types is this inverter designed to work with?
The listed battery compatibility for this model is open and sealed lead-acid batteries. Buyers using other battery chemistries should verify suitability before purchase, because only lead-acid compatibility is stated in the provided specifications.
What protections are built into the ISI-501-248A?
This inverter includes battery low alarm, battery low shutdown, over voltage, over temperature, output short, input polarity reverse, and overload protection. The provided specifications also note shutdown-and-repower recovery behavior for overload, over-temperature, and output short conditions.
Can this inverter be used in demanding temperature conditions?
The specified operating temperature range is -20°C to +40°C at 100% load, with up to 60°C at 50% load. That makes it suitable for a wide range of industrial and field environments when used within its stated load and temperature limits.
What are the main physical and efficiency specs of this model?
The ISI-501-248A is listed at up to 88% efficiency and weighs 2.35 kg. Its dimensions are 205 x 158 x 67 mm, which makes it relatively compact for a 500W inverter with an integrated MPPT solar charger.
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