How to wire a DC to AC Inverter to a battery,
whilst using a DC protection device.

This has been written to highlight the electrical connection steps, for ‘in vehicle’ connection.
There will be many possibilities depending on location of the Inverter, battery and type of vehicle, however this STEP by STEP is intended to highlight the safest sequence.

Connecting DC to AC Inverter to a Battery



With the 300W Pure Sine Wave Inverter from 8ZED, you receive two types of cables, one is a simple cigarette lighter connection. This allows you to simply plug into the Cigarette Socket in the dash of your vehicle.
(Note** this should only be used as a temporary connection as it only delivers 150Watts in total)

Cigarette Socket Adaptor


Any power that is over 150Watts should be direct battery connected as shown in this guide.

STEP 1: Some people may disagree, however when using a circuit breaker in the circuit, we recommend connecting the Negative cable first.

DC to AC Inverter connection to battery

It doesn’t matter whether you start from the battery or the inverter in this case. Ensure the connection is strong and clean. A Poor earth connection will result in poor performance of the Inverter.

STEP 2: Next step is to start on the DC positive cable.

Connecting DC to AC Inverter to a battery

As you can see in the image below, the 8ZED DC Circuit breaker  is in the “open” position. This ensures no power flowing through it. This is important as it ensures no “short” or mishaps can cause damage to the cable vehicle and most of all yourself.


circuit breaker

First make a connection to either of the posts on the DC breaker. Once this is secure you can make the connection to the battery positive as per the next image below.

Connecting DC to AC Inverter to a battery

STEP 3: With the DC breaker in the “open” position it means the other post is not live.
Now connect the other red to this post and then to the Red Post of the Inverter.
The complete connection should now look like this below.

DC to AC Inverter connection complete

Now once you are happy and have double checked you can click the DC breaker into the “closed” position. This will allow the DC power from the battery to pass through whilst maintaining protection.

You may now turn on the inverter and power your devices.


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