Free delivery over £75

Try the ultimate electrical design service

1% for the Planet 

Cart 0

NDS Inverter 1500W – 12V Modified Sine Wave Inverter

The NDS SM1500 is a modified sine wave inverter that converts 12V DC power from your leisure batteries into 240V AC power for the powering of home devices such as kitchen appliances and laptops.

  • For use with 12V systems
  • Allows you to run up to 400W of domestic appliances whilst off-grid
  • Modified sine wave
  • Efficient, reliable, safe, and quiet


In stock - 1-2 Day Dispatch


Confused about electrics? Our free electrical system design service makes off-grid energy simple.


NDS products stand out for their high quality construction and design. The NDS SM1500 12V to 240V inverter 1500W is a modified sine wave DC to AC inverter that provides high performance and reliability, maximum safety, and, crucially, quiet operation. NDS inverters are widely used in RVs, cars, and in emergency vehicles around the world, where these qualities are essential. Living in your camper, peace of mind about your core systems is indispensable, and this inverter provides exactly that.

Superior performance

This NDS 12V to 240V inverter 1500W boasts an exceptionally high yield of up to 93% when converting from AC to DC. What’s more, NDS inverters operate with some of the lowest self-consumption figures on the market. This means that the amount of power the device itself uses during operation is exceptionally low. This is achieved through the quality of the construction, such as the high conductivity connection bars installed in every NDS pure sine wave inverter.

Excellent build quality

High quality connections are soldered directly onto the board with high conductivity bars. This construction avoids voltage drops and power losses, and reduces energy consumption. Meanwhile, the integrated mounting brackets allow easy and safe installation in any position, so you can really get creative when space is limited. This 12V to 240V inverter comes supplied with all the cables you’ll need to install it, specific to the power of the device.

Safe and sound

NDS design their inverters with the following safety features as standard:

  • Soft starter protection
  • Overload protection
  • Short circuit protection
  • Reverse polarity protection
  • Over temperature protection
  • Low battery alert

Modified sine wave explained

Modified sine wave inverters use square waves to generate an approximation of the sine wave that comes from mains sockets. This more basic mode of operation makes modified sine wave inverters cheaper than their pure sine wave counterparts. The quasi-sine wave works fine for simpler electronics, such as lighting, kettles, hair dryers, and blenders, but may shorten the lifespan of more sensitive electronic devices. You can read more about modified and pure sine wave inverters in our handy article.

Products that give back

We are members of 1% for the Planet. This means that for every product purchased from Climbingvan, we will give 1% of the total cost to The Honnold Foundation. The Foundation provides solar power to underprivileged communities. If you want your electrical system to have more of a positive impact, purchasing your components from us at Climbingvan will mean you can give back as well as powering your off-grid system.

Product SKU: SM1500-12

Additional information

Weight 5.45 kg
Dimensions 27 × 27 × 10.8 cm


Inverter rating (VA / W)


Max efficiency


Mains input



Sine wave type

Modified sine wave


There are no reviews yet.

Be the first to review “NDS Inverter 1500W – 12V Modified Sine Wave Inverter”

Your email address will not be published. Required fields are marked *

    Your cart is emptyReturn to Shop

      Want to modify this kit?

      Fill out the form below and one of our engineers will be in touch soon.


      Got a question? Fill out the form below and someone from the team will be in touch soon.

      We donate 1% of our revenue to The Honnold Foundation as a part of our 1% for the Planet commitment, to advance access to solar energy all over the world. You can find out more about the amazing work The Honnold Foundation does here.


      How does it work?

      You place an order

      If you place an order for £250, we will donate £2.50 at no extra cost to you.

      We donate 1%

      Each quarter we donate 1% of our revenue to The Honnold Foundation.

      The world benefits

      Our donation is used to provide those that need it most access to solar energy.

      We offer a range of 0% interest credit options from PayPal Credit and Klarna, so you can spread the cost of your purchase over 30 days, 4 months or 1 year, at no extra cost to you.

      PayPal Credit up to £2,000

      Klarna Credit up to £1,000

      How does it work?

      Add to Basket

      Add the items you wish to purchase to your basket.

      Choose how to pay

      Pay with PayPal Credit or Klarna whichever works best for you.

      Apply for credit

      Get an instant decision and, if approved, complete your purchase.

      Subject to status. Min monthly payment applies. Terms apply. UK residents only. For full details please proceed to checkout and select your preferred credit option.

      Where do you live?