---
product_id: 18172266
title: "Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems"
brand: "morningstar corporation"
price: "$1141"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/18172266-morningstar-suresine-classic-300w-pure-sine-wave-inverter-si-300
store_origin: NZ
region: New Zealand
---

# 300W Power Output Pure Sine Wave 4 DIP Switches Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems

**Brand:** morningstar corporation
**Price:** $1141
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Life with Confidence!

## Quick Answers

- **What is this?** Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems by morningstar corporation
- **How much does it cost?** $1141 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/18172266-morningstar-suresine-classic-300w-pure-sine-wave-inverter-si-300)

## Best For

- morningstar corporation enthusiasts

## Why This Product

- Trusted morningstar corporation brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Proven Reliability:** Trust in Morningstar's industry-leading technology and support since 1993.
- • **Unmatched Power Quality:** Experience pure sine wave output for sensitive electronics.
- • **Remote Control Convenience:** Control your inverter from a distance for enhanced safety and flexibility.
- • **Robust Protection Features:** Built-in safeguards against surges, overloads, and more for peace of mind.
- • **Smart Communication Options:** Easily customize settings with USB MeterBus Adapter and MODBUS software.

## Overview

The Morningstar SureSine Classic 300W Pure Sine Wave Inverter is a high-performance DC to AC converter designed for residential, mobile, and industrial applications. With a pure sine wave output, it ensures clean power for sensitive devices, while its advanced features like remote control, electronic protections, and customizable settings make it a reliable choice for any solar or non-solar system.

## Description

Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems

## Features

- PURE SINEWAVE CONVERSION: Engineered for system-level integration with Morningstar charge controllers, Morningstar's SureSine Classic Power Inverter delivers DC/AC conversion with pure sinewave output. It ensures clean and stable power for sensitive electronics, while the fanless convection cooling system enhances efficiency and reliability.
- ADJUSTABILITY & COMMUNICATION: This inverter features four DIP switches for easy system parameter adjustments. Additional customization is possible via Morningstar's USB MeterBus Adapter (UMC-1) and free 3rd-party MODBUS software. IP-based communication, including SNMP, is enabled through Morningstar's Ethernet MeterBus Converter (EMC-1).
- REMOTE CONTROL: Remote ON/OFF functions improves safety by making it easy to install the SureSine Classic in an inaccessible location or enclosure. This reduces system cost by avoiding the need to add an AC safety disconnect to the system.
- ELECTRONIC PROTECTIONS: Our systems feature built-in electronic protection against surges, short-circuits, overloads, and reverse polarity. They include high voltage and high temperature disconnect to safeguard against damage to electrical components. Advanced self-diagnostics alert users to installation or operational errors, while automatic recovery ensures continuous protection.
- TRUSTED RELIABILITY: Morningstar Corporation is a US company established in 1993 and is a global leader in manufacturing PWM and MPPT solar charge controllers, inverters, and accessories. Renowned for the industry's lowest hardware failure rate, Morningstar provides dependable, innovative technology for advanced solar applications. Morningstar products include U.S. based Tech Support and are the top choice for mission-critical users.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 10 Pounds |
| Color | Grey |
| EU Spare Part Availability Duration | 5 Years |
| Standby Power Shutoff | High Efficiency |
| Output Voltage | 110 Volts, 120 Volts, 220 Volts, 12 Volts |
| Peak Output Power Watts | 300 |
| Inverter Capacity Volt-Amp | 375 |
| Electrical Output Waveform | Pure Sine Wave |
| Frequency | 50 Hz |
| Number of Outlets | 1 |
| Input Voltage | 12 Volts |
| Output Power | 300 Watts |
| Power Source | Solar Powered |
| Wattage | 300.00 |
| Voltage | 220 Volts |

## Product Details

- **Brand:** Morningstar Corporation
- **Recommended Uses For Product:** Solar Power Conversion
- **Power Source:** Solar Powered
- **Wattage:** 300 watts
- **Model Name:** SureSine Classic

## Images

![Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems - Image 1](https://m.media-amazon.com/images/I/81+9kyzB7eL.jpg)
![Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems - Image 2](https://m.media-amazon.com/images/I/81HglfdgkoL.jpg)
![Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems - Image 3](https://m.media-amazon.com/images/I/61dCGQV2vQL.jpg)
![Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems - Image 4](https://m.media-amazon.com/images/I/71RlOtcv8BL.jpg)
![Morningstar SureSine Classic 300W Pure Sine Wave Inverter (SI-300-220V) - DC to AC Converter, 12VDC, 220VAC, 50Hz - for Residential, Mobile, and Industrial Solar/Non-Solar Systems - Image 5](https://m.media-amazon.com/images/I/61E8ScpZnaL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: If this inverter is located 4 feet away from the battery, what gauge of cable should be run to the battery?**
A: Recommend 2 gauge for max efficency. Home depot carrie's it.

**Q: does this inverter have any surge watts or is 300 it.**
A: Hello William The Mfg specs state that this unit handles a200%surge during load start up, to a maximum of 600 wattsHope this info helps you Joe

**Q: does this thing have any surge watts for starting or is 300 it,one of the review guys says this a true sine wave,,can I safely power my smart tv chrg**
A: YES

**Q: Is there a meter or external panel that one can buy for this?**
A: Thank you for your question. Yes, the Morningstar Remote Meter RM-1 is compatible with Morningstar's SureSine inverters.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-19*