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Maplin 12V Modified Sinewave 3000W Inverter


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About this product


  • 3000W continuous output
  • Modified sinewave output is ideal powering digital microwaves, laptops and more
  • Two 240VDC mains sockets to power products without additional converters

Product overview

• 3000W continuous output
• Modified sinewave output is ideal for powering chargers, heaters and air conditioners
• Two 240VDC mains sockets to power products without additional converters
• 12VAC power directly from the battery through alligator clips
• Weighing 11kg, the mountable metal inverter (360 x 169 x 152mm) can be positioned out of the way while powering your devices

Connect your appliances to a car, truck or solar panel
This 3000W inverter is a converter that connects to a sealed lead acid (SLA) battery that is usually connected to a car, a truck or a solar panel. The inverter can connect to the battery either through a car accessory plug or by clipping directly to the battery. A mains powered device can then be plugged directly into the inverter’s AC socket. 

Power a halogen oven, a kettle or a hairdryer

This Maplin inverter connects to the car battery directly by using the included alligator clips while being mounted out of the way. The inverter can power several devices at the same time with a combined 3000W power, such as a halogen oven, a kettle or a hairdryer. This makes the inverter ideal for mounting in a camper or while you are away camping. It is highly efficient, converting over 85% of its energy supply into output power. The inverter also includes shutdown protection to power down the inverter if the battery power drops below a certain level.

Charge a laptop, printer or charger
 A modified sinewave inverter can adequately power less sensitive appliances. Some items may pick up interference from the inverter but a solution for this is to upgrade to a pure sinewave inverter. A pure sinewave inverter is used to power sensitive electronic devices such as power motors, power tools, clocks or microwaves.


Rated 5 out of 5 by from Ive been using this inverter for 7 months with the remote switch. I have charged batteries for drills and other cordless tools, run a 1000w hoover and a 1200w hoover, run a small compressor and even a small fridge with no problems, I would say though that 1 small niggle is that the led on the remote is very dull and if you leave the inverter on overnight you will wake up to a flat battery, I did this once and decided to set up a split charge system to a 110amp leisure battery and now run this inverter off of that. Now the inverter does not affect me with any worries about starting my van. Oh one thing else, you do get about 2 meters of double thick black and red main leads with this aswell. You won't go far wrong buying this inverter. Maplin Moderator Note: The remote switch is sold separately, see our product code: A84HZ
Date published: 2014-11-18
Rated 4 out of 5 by from I've had this for around 3 months now running my static caravan and it runs all my power needs when im not on the genarator. it runs 3 lights ,1 LCDtv and a sky box for around 17 hours off two batt's. i have NO complaints about this and would recomend it.
Date published: 2014-11-18
Rated 3 out of 5 by from I purchased this item in february this year and it lasted until October. When it worked it was great I could even boil a 2kw kettle no problem.
Date published: 2014-11-18
Rated 4 out of 5 by from Seems to work correctly but I need some information on the types of electrical equipment that require pure sine wave rather than quasi sine wave.
Date published: 2014-11-18
Rated 4 out of 5 by from ok but price high The unit works well, much better than the 1000w we usually use. Price seems high in comparison!
Date published: 2016-12-04
Rated 4 out of 5 by from Ok does the job Works very well have had no troubles with it so far used every day
Date published: 2017-02-06
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3000W Modified Sinewave Inverter

Sinewave Type:

Modified Sinewave

Operating Specifications

Output Power:


Peak Output Power:


Input Voltage:


Input Current:


Output Voltage:


Output Frequency:


Dimensions & Weight










Cable Length:


Product Specifications

Low Battery Protection:


1.Do one need to use charge controller for these inverter? 2.If not how do one regulate the charge from the battery? 3. How many batteries can one use with the 3000w inverter.

Asked by: Stve
An inverter does not have batteries, so a charge controller is not needed.
Answered by: Dale
Date published: 2018-02-27

hi do you keep replacement socket outlets as mine has one broke

Asked by: michael
Sorry we do not keep spare for this unit
Answered by: Les
Date published: 2017-12-31

Will this unit power a 2Kw fan heater?

Asked by: Bill
Unfortunately this would not be suitable
Answered by: Billy
Date published: 2017-10-31

Can I use this on a cup water heater?

Asked by: Nobody
Unfortunately we are unable to guarantee full compatibility for this item in your intended application, I am sorry for any inconvenience this may cause you.
Answered by: darren cordon
Date published: 2017-09-21

do you sell any batteries suitable for this inverter, i have checked my caravan mine are 12dc but in the products details its says ''12VAC power directly from the battery through alligator clips'' and i cant seen to find any 12ac batteries.

Asked by: flez1966
Alternating current a.c.. is house electric. Dc is direct current. Batteries in cars vans boats. Have these
Answered by: Uuuu
Date published: 2017-08-12

The specification reads input 12vac and output 240dc!!!!! Do u mean 12vdc and 240ac? Can u please let me know as I want 1. 

Asked by: Andy
This will output 240AC.
Answered by: Dominic
Date published: 2017-08-07

Would this be able to connect to van battery while its moving,as need for a carnival music

Asked by: Julie
Yes, this should be fine.
Answered by: Billy
Date published: 2017-07-03

Can this product run a 2200 watt jet wash? And if not which inverter do you suggest

Asked by: Alistair
Unfortunately i am sorry but the item in question doesn't support use in you intended application. You would require a Pure sinewave for this kind of item .
Answered by: darren cordon
Date published: 2017-03-07
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