NDS modified sine wave inverter (1 Viewer)

[Neil S]

Looking at installing a 1000 watt NDS Modified sine wave inverter
specs are 1000 watt continuous
2000 watt peak
Will the above run a 600 watt microwave which I understand requires about 1200 watt on startup or would I better of with the next model up 1500 watt
I have 2 x 110 amp battery’s and
2 x 120 watt solar through a MPPT solar regulator

 

[StephDeLux]

Why on Earth would you want a modified sine inverter?

 

[pappajohn]

Mod sinewave may not run the microwave properly if at all.
Modern electronics need a pure sinewave or damage can occur.
Motors are OK but IC boards complain.

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[Neil S]

Mod sinewave may not run the microwave properly if at all.
Modern electronics need a pure sinewave or damage can occur.
Motors are OK but IC boards complain.

Pure sine wave it is , thank you for the advice

 

[Neil S]

Why on Earth would you want a modified sine inverter?

I was hoping a cheaper modified sine wave inverter would suffice for the occasional use of a low power microwave , however it would seem a Pure sine wave is required

 

[Rob Turner]

2kw pure sine and you’ll be covered for most things but just be wary for running them for too long. Maybe fit a battery monitor so you can see what’s going on.

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[Reallyretired]

A basic microwave such as Tesco one with knobs on like I have will run on a modified square wave but psw will run anything and these days the price difference is not so great. A pure sine wave inverter will generally be quite a bit larger so make sure youve got room. When I changed mine I was limited in choice by what would fit in the available space.

 

[g3cwi]

but psw will run anything and these days the price difference is not so great.

I would have thought that too. However it appears that some PSW inverters are purer than others. The one I bought would not run the intelligent charger for my ebike. It was a Giandel 300W unit. I returned it.

 

[Pausim]

A basic microwave such as Tesco one with knobs on like I have will run on a modified square wave but psw will run anything and these days the price difference is not so great. A pure sine wave inverter will generally be quite a bit larger so make sure youve got room. When I changed mine I was limited in choice by what would fit in the available space.

I just read that some microwave ovens will run on a modified sine wave but if they do they will not operate efficiently.

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[Neil S]

A basic microwave such as Tesco one with knobs on like I have will run on a modified square wave but psw will run anything and these days the price difference is not so great. A pure sine wave inverter will generally be quite a bit larger so make sure youve got room. When I changed mine I was limited in choice by what would fit in the available space.

Its a very basic 600 watt Daewoo QTR1 microwave and a low powered 500 watt hairdryer I'm not intending to power anything else

 

[StephDeLux]

NDS, Votronic, Dometic, Buttner, Victron make good pure sine wave inverters. Maybe others, I don't know. The higher end Buttner are rebadged Votronic.