Inverter DC to AC 40KW 3 phase off grid solar inverter
  • Inverter DC to AC 40KW 3 phase off grid solar inverter
  • Pure Sine Wave Inverter 40KW Off Grid Inverter
  • 40KW pure sine wave inverter

SANDI Off-grid Inverter DC to AC 40KW 3 phase inverter with CSA/UL1741

Model No.︰


Brand Name︰


Country of Origin︰


Unit Price︰

US $ 7900 / pc

Minimum Order︰

1 pc

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Product Description

Inverter DC to AC 40KW 3 phase off grid solar inverter  

with CSA/UL1741


Product Description

SANDI SDP series Pure Sine Wave Inverter is the one of the most advanced technology DC to AC conversion products in the world, it’s suitable use for areas without electricity, providing a complete power solution for strict demand applications. With SVPWM technology it has high conversion efficiency, high instantaneous power and low losses power output pure sine wave, applying to capacitive, inductive and nonlinear mixed-load, with superior load capacity, perfect protection function: overload, short circuit, low/over battery voltage, improper operation etc, which won’t cause mechanical failures. This Inverter is very suitable for solar power systems, wind power generation systems, wind and solar hybrid generation systems. The inverter can 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:

1, Using the sixth 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.

2, Intelligentized, modularized, simple structure design easy to maintenance.

3, According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set.

4, 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.

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

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

7, 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.

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

9, Built-in low frequency isolation transformer, strong impact resistance, available with motors, pump, air conditioners and other high impact equipment. At the same time DC busbar and AC busbar are completely isolated to avoid interference.

10, Wide input voltage can be set according to customer’s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy.

11, Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%.

12, 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.

13, European CE (EMC, LVD) and ISO9001 certificate


RS485 remote monitoring;

Can addAC bypass input complementary function;


Technical Parameter 




Isolation mode

Low Frequency Transformer

DC Input

Rated voltage (Vdc)





Rated current (A)





Input voltage range (Vdc)





AC Output

Rated power (Kw)



Rated voltage




Number of phases

1 phase 2 wire

3 phase 4 wire

3 phase 4 wire

Rated current (A)




Rated output voltage range (V)

220/230/240/380/400/415/440/480VAC (optional)

Output frequency

50Hz or 60Hz ±0.05 (Can set)


Pure sine wave

Waveform distortion rate (THD)

Linear load≤2%

Dynamic Response time (Load 0←→100%)

5%, ≤50ms

Power Factor (PF)


Inverter Efficiency


Electrical insulation properties

2000Vac1 Minute

Protection Function

Overload Ability



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



Communication interface (optional)

RS485 (AB)

Method of working

Working continuously

Cooling method


Short-circuit protection

No automatic recovery, need to restart the machine

Working Environment & Mechanical dimension

Degree of protection

IP20 (indoor)

Working Altitudem


Working temperature ()


Relative humidity ()

0~90%, No condensation

Noise ( 1 meter)


Unit size: (W x D x H)


Reference weight(Kg)



Our company can adjust parameter configuration according to users requirement.

Our Services

Q 1. What's the payment term?  

A. We accept T/T (bank transfer),Western Union,Paypal, MoneyGram.

Q 2.How's the delivery time ?

A. Usually it will take about 3-10 days for production, depend on the quantity of order.

Q 3.Tell me the standard of package?

A. For the small capacity, it use carton, but for big capacity, we should use honeycomb carton or  wooden case on pallet for protection.

Q 4.Would you accept to use customer's logo ?

A.It's no problem to do OEM.

Q 5.We want to know month capacity.  

A. It depends on which model.For example for relay type small capacity , month capacity can reach near 2000pcs  and big capacity near 500pcs.

Q 6.Where is your market?

A. Our products are popular in USA, Australia,South America,Philippines,Italy, America, Pakistan and so on.Some of them are our regular customers and some of them are developing. We hope you can join us and make mutural benifit from our cooperation.

Q 7. What kind of certificate you have ?

A. Our company already achieve ISO9001, and for products, we have CE, VDE, SAA, G83 G59 etc .


Q 8. What is the warranty period ?

A. Normally 1 year ,if order quantity enough can be extended to 3 years.


Q 9.How about the lifetime?

A:The life time for inverterl is 15-20years.


Lead Time
1.Sample orders will be delivered from our factory within 3-7 working days.

2.General orders will be delivered from our factory within 15-30working days.
3.Big orders will be delivered from our factory within 45 working days at most


1.By EMS,DHL,FedEx,TNT,UPS or other express.

2.By our forwarding agent(by air or by sea).

3.By your own forwarding agent.

4.By domestic forwarding agents to any city in China.


About us

1. Our products have approved by CE (EMC&LVD), SAA (AS4777, AS3100), G83/1 and G59/1 certificate and we have top engineers to provide technical support and the products using the most advanced technology all the time.

2. We provide project consulting , system design and system solutions for customers.

3. We accept OEM and small trial orders, contacting with us now for more information. All inquiries will be replied with 5 hours.



Skype: katrina0682 

E-mail: zjsandi at   

Mobile phone: +86 13858880682+86 13858880682

WhatsApp ID: +86 13858880682


Price Terms︰ FOB Ningbo
Payment Terms︰ TT
Lead Time︰ 7-10 days
Standards Certificate︰ CE, ISO9001

Product Image

Inverter DC to AC 40KW 3 phase off grid solar inverter Inverter DC to AC 40KW 3 phase off grid solar inverter

Pure Sine Wave Inverter 40KW Off Grid Inverter Pure Sine Wave Inverter 40KW Off Grid Inverter

40KW pure sine wave inverter40KW pure sine wave inverter


Email: /               

Mobile / WhatsApp / WeChat: +86 13858880682                     Skype: katrina0682

Tel: +86-577-62793760                                                                          QQ: 1276317917

Address: Building 13-2 Botong Huigu, Economic Development Zone, Yueqing city, Zhejiang Province, China

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