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3 phase off grid inverter 20KW solar inverter

3 phase off grid inverter 20KW solar inverter
3 phase off grid inverter 20KW solar inverter
Product Code : SDP-20KW
Brand Name : SANDI
Product Specifications
  • Sensor Type
  • current/voltage sensors
  • Frequency
  • 50/60 Hertz (HZ)
  • Current
  • 30.3 Ampere (amp)
  • Output
  • 3 phase 380-440Vac
  • Measuring Range
  • 96-600VDC
  • Display
  • LCD
  • Product Type
  • DC to AC inverter
  • Operating Temperature
  • -25~+55 Celsius (oC)
  • Working Temperature
  • -30~+55 Celsius (oC)
  • Input
  • 192-240VDC
  • Pressure Type
  • DC to AC
  • Diameter
  • 700 Millimeter (mm)
  • Application
  • solar system
  • Supply Voltage
  • 3 phase 380-440Vac Volt/Ohm (v/ohm)
  • Accuracy
  • 1 %
  • Dimension(L*W*H)
  • 600*700*1000 Millimeter (mm)
  • Weight
  • 180 Kilograms (kg)
  • Warranty
  • 2 years
Trade Information
  • Minimum Order Quantity
  • 1
  • Unit of Measure
  • Piece/Pieces
  • FOB Port
  • Ningbo/Shanghai
  • Payment Terms
  • Letter of Credit at Sight (Sight L/C), Telegraphic Transfer (T/T), Western Union, Paypal
  • Supply Ability
  • 6000pcs Per Month
  • Delivery Time
  • 7 Days
  • Sample Available
  • Yes
  • Sample Policy
  • Contact us for information regarding our sample policy
  • Packaging Details
  • Packing of 3 phase off grid inverter 20KW solar inverter is standard export honeycomb cartoon with pallet or wooden box or OEM
  • Main Export Market(s)
  • Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa
  • Certifications
  • CE(EMC&LVD), SAA(AS4777&AS3100), G83, G59, VDE ARN 4105, UL1741, CSA22.2, ISO9001 
Product Description

3 phase off grid inverter 20KW solar inverter

Sandi 3 phase off grid inverter 20kw solar inverter is one of the most advanced DC to AC conversion products in the world. It has the main advantages of high quality pure sine wave AC output, high efficiency, low no-load loss, long service life, little fault rate, 100% full power output, humanness design, modular structure easy for maintenance and no pollution. 


Easiest and Economical After-sale Repair 

1.Adopted Japanese Mitsubishi IPM intelligent module, modular and simple structure design, very easy and convenient for maintenance, any fault only need us send you parts for replacement, maintenance is low-skill work, non-professionals also can operate

2.Low maintenance cost, one complete set of maintenance parts not more than 300USD, save more time,energy and cost in the future

3.Little fault rate < 1%

4.Fault alarm code display, can remote guide customers repair 

Unique functions

1. Battery power priority or AC bypass priority can be set

2. Wide DC input voltage range can be set

*The DC input voltage range(over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point and under voltage recovery time) can be set, convenient for adding more solar panel or battery in the future.

3. The output frequency 50Hz/60Hz can be set.

4. The output voltage can be set.  

5. Variable Frequency Start or Step Down Voltage Start 

Complete Protection

powerful complete protection function for under voltage, over voltage, over current, short circuit, over load and over temperature which is more safe and reliable.

High efficiency  > 94%

100% full power stable output

Inside with full power low frequency isolated transformer, 100% full power output, can work 24h*7.

Long service life > 15 years

Big LCD display

LCD 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. 




Isolation mode

Low Frequency Transformer

DC Input

Rated voltage(Vdc)


Input voltage range


Rated current(A)


AC Input

Rated voltage(Vac)

Three phase 4 wires 380Vac

AC Output


Rated power(KW)


Rated voltage


Output phases

Three phase + N + PE

Rated current (A)

30.3A (phase current)

Output frequency


Output waveform

Pure Sine Wave

Voltage accuracy

Load balance1%,  Unbalance load5%

Waveform distortion rate (THD)

Linear load2%,  Nonlinear load3%

Dynamic Response  

5%, ≤50ms( load 0 ~ 100%)

Power Factor (PF)


Inverter Efficiency


Electrical insulation properties

2000Vac, 1 Minute

Running mode

Working continuously, can work 24h*7

Protection Function


Overload Ability

120% - 35 seconds,  150% - 5 seconds


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



Cooling method


Short-circuit protection

No automatic recovery, need to restart the machine

Working environment


Mechanical dimension


Degree of protection


Working Altitude (m)


Working temperature


Relative humidity


Noise ( 1 meter)


Depth* Width * Height


Weight (Kg)



European CE(EMC & LVD)



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