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Mean Well ISI-501-212A True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger

true sine wavehigh surge power up to 1000WUSA Socket
SKU ISI-501-212A
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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

ISI-501-212ASpecifications from the official datasheet (2024-09-04 edition)

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. 1.THD is tested by rated power, linear load at 13V,26V,52V input voltage.
  2. 2.Efficiency is tested by 350W, linear load at 13V,26V,52V input voltage.
  3. 3.The tolerance of each voltage value by models is : 112/212→±0.5V ; 124/224→±1V ; 148/248→±2V.
  4. 4.Output derating capacity referenced by curve 1.
  5. 5.Input derating capacity referenced by curve 2.
  6. 6.All parameters not specified above are measured at rated load, 25℃ of ambient temperature and set to factory setting.
  7. 7.DC current is tested by 500W, linear load at 12V,24V,48V input voltage.
  8. 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. 9.Type F for 60Hz only.

Technical drawings

ISI-501-212A Block Diagram
Block Diagram
ISI-501-212A Charging Curve
Charging Curve
ISI-501-212A Mechanical Specification
Mechanical Specification

Typical applications

  • Home appliance
  • Power tools
  • Portable equipment
  • Yacht
  • Vehicle

Downloads

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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Other ISI-501 Models

35 other models
ModelPowerVoltageWaveformFrequency
Mean Well ISI-501-248U True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-248F True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-248D True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-248C True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-248B True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-248A True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224U True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224F True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224D True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224C True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224B True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-224A True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-212U True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-212F True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-212D True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-212C True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-212B True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 500W 230V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148U True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148F True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148D True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148C True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148B True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-148A True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124U True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124F True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124D True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124C True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124B True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-124A True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger 500W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112U True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112F True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112D True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112C True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112B True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
Mean Well ISI-501-112A True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger 450W 110V Modifined Sine Wave 50Hz View
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Mean Well ISI-501-212A True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger
Mean Well

Mean Well ISI-501-212A True Sine Wave DC-AC Inverter 450W 110V out 12V in with MPPT Solar Charger

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

Typical applications

  • Home appliance
  • Power tools
  • Portable equipment
  • Yacht
  • Vehicle
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