Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
ISI-501-148C is the model of this series: rated power 450W, typical efficiency 87%.
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
- 450W
- 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 110VAC 100 / 110 / 115 / 120VAC selectable by setting button S.W
- FREQUENCYNote.9
- Factory setting set at 110VAC 60±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
- 87%
- 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*1
- 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 FCC part 15 class B, EAC TP TC 020
- EMC IMMUNITY
- Compliance to 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 Mean Well ISI-501-148C designed for?
The ISI-501-148C is a 500W true sine wave DC-AC inverter with a built-in MPPT solar charger. It is suited to off-grid and mobile power applications where clean 110V AC output and solar charging support are both needed. This makes it a practical option for professional and industrial power systems that use a DC battery source.
What kind of AC output does this inverter provide?
This model provides 110V AC true sine wave output with total harmonic distortion below 3%. True sine wave output is important for running sensitive electronics and equipment that require cleaner power than modified sine wave units. It is also rated for 500W continuous output.
Does the ISI-501-148C include a solar charger?
Yes, this model includes a built-in 500W MPPT solar charger. Mean Well lists the typical MPPT efficiency at 98%, which helps maximize solar energy harvesting. That integration can reduce the need for a separate charger in solar-based power systems.
What DC input range does this inverter support?
The specified input voltage range for the ISI-501-148C is 42 to 60VDC. Buyers should confirm their DC system operates within that range before selecting this model. Staying within the rated range is important for proper inverter performance and protection behavior.
Which battery types are supported by this model?
The product data lists support for open and sealed lead acid batteries. That makes it suitable for systems built around those battery chemistries. If your application uses a different battery type, it is worth confirming compatibility before purchase.
How does this model handle overloads and surge demand?
The ISI-501-148C is rated for 500W continuous power and supports surge power up to 1000W. Its overload protection allows 110% load for 60 seconds, then shuts down the output voltage and requires re-powering to recover. This gives some headroom for brief startup peaks while still protecting the unit.
What protections are built into the ISI-501-148C?
This inverter includes battery low alarm, battery low shutdown, over voltage, over temperature, output short, input polarity reverse, and overload protection. The product data also notes recovery by re-powering after overload, over-temperature, and output short shutdown events. These protections are useful in demanding commercial or industrial environments.
Can this inverter be used in harsh temperature conditions?
It is rated for operation from -20°C to +40°C at 100% load. The product data also states 60°C at 50% load, so reduced loading is required at higher ambient temperatures. A built-in cooling fan is included to support thermal management.
What are the size, weight, and warranty for this unit?
The ISI-501-148C measures 205 x 158 x 67 mm and weighs 2.35 kg. The datasheet does not state a warranty period, so confirm warranty terms at purchase. Those details can help when comparing compact inverter options for space-constrained enclosures or equipment cabinets.
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