Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
ISI-501-212A is the model of this series: rated power 500W, typical efficiency 86%.
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
- 12V
- VOLTAGE RANGENote.3,5
- 10.5 ~ 15VDC
- DC CURRENT (Typ.)Note.7
- 50A
- NO LOAD CURRENT DRAW (Typ.)
- 1.25A
- OFF MODE CURRENT DRAW (Typ.)
- ≦1mA
- EFFICIENCY (Typ.)Note.2
- 86%
- 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.)
- 30A
- BATTERY TYPE
- Open & sealed Lead Acid
- FUSE
- 40A*2
- BAT. LOW ALARMNote.3
- 11.3V
- BAT. LOW SHUTDOWNNote.3
- 10.5V
- REVERSE POLARITY
- By internal fuse open
MPPT / SOLAR SECTION
- MPPT CHARGER EFFICIENCY (Typ.)
- 98%
- OPEN CIRCUIT VOLTAGE RANGE
- 35 ~ 50V
- MPPT RANGE
- 25 ~ 50V
- SOLAR INPUT CURRENT (Typ.)
- 11A
- 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 is the main use case for the Mean Well ISI-501-212A?
The ISI-501-212A is designed for converting 12VDC battery power into true sine wave AC power for sensitive loads. It is a good fit for mobile, off-grid, backup, and solar-supported power applications where output quality and built-in battery charging features matter.
What power level does this inverter support?
This model is rated for 450W continuous output power. It also supports surge power up to 900W, which helps with equipment that has a higher startup demand than its normal running load.
Does this model produce true sine wave output?
Yes. The ISI-501-212A provides true sine wave output with total harmonic distortion below 3%, which is important for many electronics and other sensitive AC-powered devices. That makes it a stronger choice than modified sine wave units when power quality is a priority.
Does the ISI-501-212A include a solar charger?
Yes. It has a built-in 500W MPPT solar charger, with typical MPPT efficiency listed at 98%. That makes this model more than a standalone inverter, since it combines DC-AC inversion with solar charging capability in one unit.
What battery types is this inverter compatible with?
The product data lists compatibility with open and sealed lead-acid batteries. Its DC input range is 10.5 to 15VDC, so it is intended for 12V battery-based systems within that operating window.
What protection features are built into this inverter?
The ISI-501-212A includes battery low alarm, battery low shutdown, over-voltage, over-temperature, output short, input polarity reverse, and overload protection. For overload, over-temperature, and output short conditions, the unit shuts down output and requires re-powering to recover.
Can this inverter operate in demanding environments?
It is rated for operation from -20°C to +40°C at 100% load, and up to 60°C at 50% load. The unit also uses a built-in cooling fan, which helps manage temperature during operation.
What other key specifications should buyers know?
This model has typical efficiency of 86%, typical no-load current draw of 1.25A, and off-mode current draw of 1mA or less. It also includes built-in remote ON-OFF control, a battery low relay contact, and LED status and battery capacity indication.
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