Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
ISI-501-112B is the model of this series: rated power 450W, typical efficiency 85%. Type B: TYPE B OUTLET.
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
- 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
- 85%
- 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 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
MODEL ENCODING
- A
- TYPE A OUTLET
- B (this model)
- TYPE B OUTLET
- C
- TYPE C OUTLET
- D
- TYPE D OUTLET
- F
- TYPE F OUTLET
- U
- TYPE U OUTLET
Test conditions and notes8
- 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).
Technical drawings
Typical applications
- Home appliance
- Power tools
- Portable equipment
- Yacht
- Vehicle
Downloads
FAQ
What is the main purpose of the Mean Well ISI-501-112B?
The ISI-501-112B is a true sine wave DC-AC inverter designed to convert 12VDC input power into 110V AC output. It is rated for 450W continuous output and also includes a built-in 500W MPPT solar charger. This combination makes it suitable for mobile, off-grid, and backup power applications where clean AC power is needed.
Does this inverter produce true sine wave output?
Yes, this model provides true sine wave output with total harmonic distortion below 3%. That makes it a better fit for sensitive AC equipment than modified sine wave alternatives. Buyers looking for cleaner output quality for electronics or professional equipment often prefer this type of inverter.
What input and output ratings does the ISI-501-112B support?
This model accepts a 12VDC nominal input, with an input voltage range of 10.5 to 15VDC. It delivers 110V AC output and is rated for 450W continuous power. It also supports surge power up to 900W for short-duration startup demands.
Is a solar charger built into this inverter?
Yes, the ISI-501-112B includes a built-in 500W MPPT solar charger. Mean Well lists the MPPT efficiency as 98% typical. That integrated design can be attractive for systems that want inverter and solar charging capability in one unit.
What battery types is this model designed for?
According to the provided specification, this inverter is intended for open and sealed lead-acid batteries. It is built around a 12V battery system and includes battery-related protections such as low battery alarm and low battery shutdown. Buyers using other battery chemistries should verify system compatibility before purchase.
What protections are included on the Mean Well ISI-501-112B?
This model includes protection for low battery alarm, low battery shutdown, over voltage, over temperature, output short, input polarity reverse, and overload. For overload, the unit can handle 110% load for 60 seconds before shutdown. Several fault conditions recover by re-powering the unit after the issue is cleared.
What environments is the ISI-501-112B rated for?
The specified operating temperature is -20°C to +40°C at 100% load, and up to 60°C at 50% load. It also uses a built-in cooling fan to help manage heat during operation. These ratings make it more suitable for demanding industrial or mobile environments than basic consumer inverters.
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