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Refurbished SunRay 3000 Pure Sine Wave Power Inverter - 12V DC to 115V AC (60Hz) - 3000W Rated Output

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Refurbished SUN3000-12v
$15.00 (Fixed shipping cost)

Product Description

Rigorous refurbishment process prior to sale cover by a 90 days Manufacturer Warranty.

Item description : 

  1. Refurbished Sunray 3000/12 Inverter 





Sunray 3000 watt Pure Sine Wave Inverter Header
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  Introduction (Applications)   Safety Certification
  Pure Sine Wave Output   Remote Starting Systems (Optional)
  Product Photographs   Warranty and Shipping
  Technical Details   Technical Support
    Data Sheet      
    Front Panel Details      
    Cooling Characteristics      
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Introduction to SunRay 3000 AC to DC power inverter

Nearly a decade of advanced research, development and real-world testing in some of the most demanding conditions have yielded the world’s most sophisticated series of DC to AC pure sine wave power inverters.   Ramsond SUNRAY™ inverters are arguably the most advanced and reliable pure (true) sine wave power inverters available in the market.  The design, functionality, stability, reliability and affordability of SUNRAY™ power inverters are simply unrivaled.  They are extremely rugged and powerful.  At the same time, they are elegant in appearance, compact and lightweight.  They are developed to be user-friendly and furnish real time live data and information (via LED displays and alarms) about the working conditions of the inverter, the load and battery bank.  The characteristics of SUNRAY™ pure sine wave inverters make them suitable for virtually all residential, commercial and industrial applications. The SUNRAY™ true/pure sine wave inverters are tested and certified to be compliant with the most stringent safety standards (ETL).


The characteristics of SUNRAY™ pure sine wave power inverters make them suitable for virtually all residential, commercial and industrial applications. The applications are countless, but some include:


  • Off-Grid Power Source
  • Renewable Energy (Solar, Wind, Hybrid)
  • Emergency Backup Power
  • RV, Mobile Homes, Trucks, Tractors, Cars
  • Camping, Tailgating
  • Marine Applications (Boats and Yachts)
  • Commercial and Industrial Applications
  • Mobile Power for Tools and Machinery
  • Construction Sites
  • Mobile Command Centers
  • Mobile Medical Clinics
  • Remote Scientific and Research Sites
  • Mobile Laboratories
  • Disaster Relief Modules
  • Temporary Disaster Shelters
  • Mobile Water Purification Systems
  • Telecommunication, Surveillance Towers
  • Oil Platforms, Research Sites,
  • Defense and Military Applications
  • Exhibition Booths, Concession Stands
SunRay 3000 Applications


Ramsond SUNRAY™ inverters convert DC (Direct Current) to pure sine wave AC (Alternating Current) power; the same type and quality of AC power produced by the utility companies. Pure sine wave output is a far superior (cleaner) form of output power as compared with modified sine wave or square wave power.  Increasingly, most modern electrical or electronic devices, such as laptop computers, stereos, laser printers, sensitive medical equipment, digital clocks and kitchen appliances with multi-stage timers, and variable speed or rechargeable tools can only function properly with pure (true) sine wave power. Similarly, pure (true) sine wave inverter power may be needed for maximum efficiency of inductive equipment, to reduce audible and electrical noise in devices with audio-visual components and to enable proper functioning of fluorescent lights with electronic ballasts.

Ramsond SUNRAY™ inverters' pure sine wave output provides suitable power for operation of all electronic and electrical appliances and devices. In contrast, the inferior, conventional inverters that produce modified or square wave power, are likely not to be capable of providing suitable power to many modern devices.  Both the function and longevity of electrical/electronic devices and appliances are improved with the use of pure sine wave power.

SunRay 3000 Advantages Graph


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Ramsond SunRay Pure Sine Wave Inverter 3000 watt picture 1


Full Technical Data Sheet

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Instruction Manual

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Ramsond SunRay 3000 Pure Sine Wave Inverter 12V UPC Code

Technical Specifications
Manufacturer Ramsond Corporation
Model SUNRAY™ 3000 (12VDC to 115V 60Hz AC)
Function DC to AC Intelligent Digital Power Inverter
DC Input Voltage 12V
Input Voltage Range (DC) 11-15 Volts
Output Voltage (AC) 115V ± 10%
Output Frequency 60 Hz
AC Output Wave Form Pure Sine Waves
THD < 5%
Continuous Output 3000 Watts
Surge/Peak Power 6000 Watts
No Load Draw > 1.2 Amp
Full Load Efficiency ≥ 90%
High Input Voltage Protection >15 V DC
High Input Protection Action Automatic System Shut Off (Automatic Recovery)
Low Input Voltage Alarm 10.5 ± 0.5 V
Low Input Voltage Protection 10.0 ± 0.5 V
Low Input Protection Action Automatic System Shut Off  (Automatic Recovery)
AC Short Circuit Protection Automatic System Shut Off  (Manual Recovery)
Over Heat Protection Automatic System Shut Off  (Automatic Recovery)
Reverse Polarity Protection Spade Fuses
Cooling System
Heat Exchange Extruded Aluminum Body With Ruffled Heat Transfer Fins
Fan System Large Thermostatic High Air-Flow Rear Fan
  • 4 x 115V 60Hz 15 Amp Three (3) Prong Sockets
  • Hard Wire Terminal Block (AC115V 60 Hz, 30 Amp)
  • USB 5V 500mA Socket
  • Remote Starter Port
  • Remote Ready (Switch Optional)
LED Displays
  • LED Display Window of Watts & Error Codes
  • LED Display Window of Input Voltage
  • Single LED On/Off Indicator and Alarm
Extruded Anodized Aluminum + Ruffled Heat Transfer Fins
Weight and Dimensions
Net Weight 18 lbs (8.2 Kg)
Dimensions Length 15 ¼ in (390 mm)
Width 9 in (230 mm)
Height 6½  in (95 mm)
Environmental Specifications
Working Temperature 32° F to 140° F (0° C to +40° C)
Working Humidity 10% ~ 90% RH non-condensing
Safety and Certification
ETL Listed and Certified

Front Panel

The panel of the SunRay 3000 is comprehensively equipped with variety of features. The double LED display windows display the load power (Watts), the battery voltage, as well as three digit error codes. The panel is equipped with four standard 3 prong 15 Amp receptacles. Furthermore, the panel is equipped with a 30 Amp (115V 60Hz) Hard Wire Terminal Block . This terminal block can be utilized to power loads that exceed the standard 15 Amp. The hardwire block terminal may also be utilized for applications that require direct connection from inverter to the power circuit* (e.g. off grid power systems).

*Please ensure connection to electrical panel by a qualified and certified electrician to prevent power back feed.

Ramsond SunRay 3000 12V Panel Details

Cooling Characteristics
The heat generated by a power inverter adversely affects both its performance and longevity. Therefore, the heat dissipation characteristics of an inverter are critically important to how well it performs and how long it lasts. Ramsond SUNRAY™ inverters feature many new innovations, including cutting edge and proprietary cooling design characteristics. The cooling attributes of Ramsond SUNRAY™ power inverters include the following:


In contrast to many low quality inverters that use plastic or painted steel shells, the exterior shell/body (heat sink) of the Ramsond SUNRAY™ power inverter is constructed of aluminum which is precision extruded and anodized. This anodizing finishing process prevents corrosion and increases wear resistance of the exterior shell.

Ruffled Heat Sink Fins

Heat sink fins help increase the air flow and ultimately cool the inverter. The exterior heat sink fins of Ramsond SUNRAY™ are ruffled; further increasing the surface area for air flow, leading to much superior cooling characteristics.

Large High Speed Rear Cooling Fan

Ramsond SUNRAY™ 3000 is equipped with a large rear fan. This fan is thermostatically controlled and automatically engages when the internal temperature increases.

SunRay 3000 Features


The ability to start a power inverter from a distance is both a valuable convenience and, in many instances, a necessary and functional tool.  

All Ramsond SUNRAY™ power inverters are remote-ready.  They all feature a REMOTE connection port, located on the front panel of the inverter.  The optional remote starting systems connect to this port.  With the optional remote starting systems, the Ramsond SUNRAY™ inverter can be turned on or off from distances of up to 100 feet (30+ meters) away.

There are two types of optional remote starting systems available; the Wired and Wireless.  The Wired system consists of a remote switch and connecting wire. The Wireless system consists of a Receiver and wireless Transmitter.  Both of these remote starting systems provide convenient mechanisms to turn the inverter on or off from a distance.   Each of these systems is supplied with a connecting wire assembly.   The connecting wire (between the Receiver/Switch and inverter) can be lengthened as needed, using standard telephone cable and connectors.


SunRay 3000 Pure Sine Wave Inverter Remote Starter


Federal law, as well as many State and local jurisdictions in the United States, mandate that power inverters be tested and certified by a Nationally Recognized Testing Laboratory for performance and safety. It is unlawful in many jurisdictions to sell and/or install power inverters that are not certified for safety performance. These regulations are aimed to ensure the safety of the public. Despite these regulations, many uncertified inverters are finding their way into the US market. These uncertified inverters are often extremely dangerous, and pose a serious safety risk of property damage, injury and/or death. Similarly, the performance of these inverters is often grossly misrepresented.

In contrast, all Ramsond SUNRAY™ power inverters are subjected to rigorous tests by a nationally recognized laboratory approved by the US government. Ramsond inverters are manufactured under very stringent quality control guidelines and tested for performance. They are ETL listed and certified to comply with standards for safety. Ramsond SUNRAY™ pure sine wave power inverters are officially certified by Intertek Laboratories, a government approved testing laboratory, and bear the ETL Listed Mark, as shown below, which is proof of product compliance to North American safety standards.

Pure Sine Wave 3D




Each Ramsond Ramsond SUNRAY™ series pure sine wave inverter comes with a 1 year Limited Warranty covering both parts and labor (at our designated service center). We maintain a constant stock of all components and replacement parts. During the term of the warranty, should you require service, simply return your inverter to our service facility. Your inverter will then be repaired or serviced promptly and returned to you. This is indeed the best warranty available as compared with other would-be competitors who simply provide a parts only warranty. Furthermore, we have knowledgeable and qualified technical and service personnel on staff available to address any of your technical questions. Simply email or call us and we will promptly address your questions.


Each Ramsond SUNRAY™ is guaranteed to be BRAND NEW and in original factory packaging. When you purchase your Ramsond inverter inverter here, your investment is protected. We employ the best packaging techniques so your order arrives to you in perfect condition. All orders are shipped within 1-2 business days of receipt of payment. From the time the item is shipped, it usually takes 2-5 business days for you to receive it.* We ship to physical addresses only. We cannot accommodate shipments to a P.O. Box,, APO or FPO.

* Transit time estimates are based on shipping within the continental US only. We cannot guarantee transit times. Transit delays are outside our control.



Ramsond's knowledgeable technicians and engineers are trained to answer all technical questions. Similarly, Ramsond maintains state of the art repair and service facilities, equipped with some of the world's most advanced equipment, should your product require service or repair. We have the answers and solutions that you need. You can email or call us and one of our knowledgeable and certified technical agents will be ready to assist you with all of your questions. You may call us at (866) 777-7071 during normal business hours. You may also email us at sales@ramsond.com or click on the Contact Us button below to submit your questions and/or comments.
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Product Reviews

  1. great 5 Star Review

    Posted by on 20th Nov 2021

    this is my third Ramsond 3000. The first 2 were hit by lightning. Overall they are great for the price. I've had them for 11 years on my off grid cabin.