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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: SANDI
  • Model Number: SDP-30KW
  • Output Power: 1 - 200KW
  • Output Type: Triple
  • Weight: 210KG
  • Input Voltage: 240V / 360VDC
  • Output Voltage: 220/380VAC
  • Type: DC/AC Inverters
  • Output Frequency: 50HZ / 60HZ can adjust
  • Output Current: 45.5A
  • Display: LCD
  • Efficiency: 95%
  • Waveform: Pure sine wave
  • Isolation type: Low frequency transformer

Packaging & Delivery

Packaging Details: standard honeycomb carton packing with pallet

Low Frequency Split Phase Inverter with AC Bypass Input






Product Description


Our SDP series Off Grid Pure sine wave inverter is one of the most advanced DC to AC conversion products in the world, it is suitable use for areas without electricity, vehicles, ships, solar energy, wind turbine and other renewable energy systems and etc, can supply power and provide guarantee effectively for the areas with traffic inconveniences, in the mountains, pastoral, border, island and other areas without electricity. It has the main advantages of high quality sine wave AC output, microcomputer control, humanness design, and it ishigh efficiency and low no-load loss, and no pollution. The inverter can also supply AC power to all kinds of electric equipment, air conditioners, electric motors, refrigerators, fluorescent lights, televisions, electric fans and other industrial power supply.


Technical Features:

  • Using the fifth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It’s service life can up to 15 years or more.

  • Intelligentized, modularized, simple structure design with powerful function.

  • Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter’s usage, which reduced the cost of equipment investment, easy to connect wires and control.

  • The output frequency can be setting via LCD panel, it’s very convenient for customer.

  • The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%.

  • The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel.

  • Pure sine wave output. With good dynamic response less than 50MS, waveform distortion rate smaller, higher conversion efficiency and stable output voltage.

  • Low Frequency Transformer, which ensures that inverter has high efficiency.

  • Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 100-500V or 200-850V.

  • High conversion efficiency, Max. Efficiency≥96%

  • Adopts black pure aluminum radiator, which confirms the best radiating performance.

  • Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, output power KWH, time and date, temperature, fault code display.

  • Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 100-500V or 200-850V.

  • European CE (EMC, LVD) certificate, accredited by Australian CEC, ERAC energy network.


  • RS485 remote monitoring;

  • Can add AC bypass complementary function;

  • PV Off-grid Solar Power System

PV Off-grid solar power generation system including solar panel array, solar charge controller, storage battery, Off-grid inverter, etc. In the sunshine, the solar panel convert the solar energy to DC power and charge the battery group by the charge controller. Then the off grid inverter convert the DC power into AC power for power supply the AC load.




Technical Parameters (Normal model)




Isolation mode

Low Frequency Transformer

DC Input

Rated voltage (Vdc)




Rated current(A)




AC Output

Rated output power



Output waveform

Pure Sine Wave

Rated Voltage






Single phase

3 phase 4 wire

Single phase

3 phase 4 wire

Rated current(A)


45.5A (phase current)


61A (phase current)


50Hz or 60Hz

Rated output voltage range (V)

220/230/240/380/400/415VAC optional

Power Factor(PF)


Overload Ability

150%, 5 seconds



Waveform distortion rate (THD)

<3%(Linear load)

Dynamic Response (0 to 100% load)




Running mode

Working continuously

Electrical insulation properties

2000Vac, 1 Minute

Protection Function


Input reverse polarity, under voltage, overvoltage, output over-current, short circuit, overheating etc.

Cooling method


Short-circuit protection

No automatic recovery, need to restart the machine

Working environment

Noise ( 1 meter)


Degree of protection


Working Altitude(m)


Working temperature


relative humidity


Mechanical dimension

Depth* Width * Height


Weight (Kg)





Packaging & Shipping


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China (Mainland) | Manufacturer, Trading Company
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