Factory Inverter

Factory Inverter

Product name: pure sine wave inverter with remote controller
Model No.: NK3000-12V/24V /48V
Working principle:Inverter is the DC power (battery, accumulator jar battery) into alternating current (usually 220v 50Hz 60Hz sine wave or modified sine wave).
In general, an inverter is a device that converts direct current (DC) into alternating current (AC). It consists of inverter bridge, control logic and filter circuit.


3000w factory inverter information

3000w factory inverter

The NK series inverter adds a digital display and remote control feature based on NP series, which gives you a better show of its running state and parameters,also be more easily controlled.

Product Specification of 3000 watt factor inverter


Model No.


Continuous Power


Peak Power


Input Voltage

DC12V / DC24V / DC48V

Output Voltage

AC220-240V / AC100-120V

Output Frequency

50Hz /60Hz

Output Waveform

Pure Sine Wave

USB Output

5V 500mA(alternative)

For 48V input, no USB

Remote function


Remote controller with 4m wire

CR50 optional

LED indicator

A: Output load level: <20% -off, between 20% and 50%- green, <90%-orange,>90% - red; B: Protection/fault status - red

Sleeping mode setting(dip switch)

S4- frequency 50/60HZ, S3-15% output load, S2-10% output load, S1- 5% load setting

Protection Function

Bat.low alarm, Bat.low shutdown, over voltage, polarity reverse, overload, short circuit, earth fault, over temperature, soft start

Product Size

47.5*25.1*10.5cm (L*W*H)

Optional receptacle


About 3000W ture sine wave inverter


Applicable site for 3000w solar inverter


Our company


Our market





1.How to choose suitable inverter ?

If your load is resistive loads, such as: bulbs, you can choose a modified wave inverter. But if it is inductive loads and capacitive loads, we recommend using pure sine wave inverter. For example: fans, precision instruments, air conditioner, fridge, coffee machine, computer, and so on. Modified wave can be started with some inductive loads, but effect for load using life, because capacitive loads and inductive loads need highquality power.

2.How do I choose the size of the inverter ?

Different types of load demand for power are different. You can view the load power values to determine the size of the inverter. Notice: resistive load: you can choose the same power as the load. Capacitive loads: according to the load, you can choose 2-5 times power. Inductive loads: according to the load, you can choose 4-7 times power.

3.How connection between batteries and an inverter ?

We usually believe that cables connecting battery terminal to inverter shorter is better. If you are just standard cable should be less than 0.5M, but should correspond to the polarity of the batteries and inverter-side outside. If you want to lengthen the distance between battery and inverter, please contact us and we will calculate the recommended cable size and length. Due to long distances using a cable connection, there will be a reduced voltage, which means that the inverter voltage would be far below the battery terminal voltage, this inverter will appear under voltage alarm conditions.

4.How to calculate the load of working hours requires configuration of the battery size ?

We will usually have a formula to calculate, but it is not hundred percent accurate, because there is also the battery's condition, the old batteries have some loss, so this is only a reference value: Work hours = battery capacity * battery voltage *0.8/load power 

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