For units in parallel: Both the DC and AC wiring needs to be symmetrical per phase: use the same length, type and cross-section to every unit in the phase. To make this easy, use a bus-bar or power-post before and after the inverter/chargers. These methods transform a standard solar installation into a robust, scalable energy solution. This guide. A power inverter is a device that changes the direct current (DC) – like the one from your car battery – to alternating current (AC power) – the type you get from your home outlets. So, in essence, it allows you to use many of your household devices and appliances in environments where only DC. The Victron Wiring shows the A & N of Inverters linked to a common point or bus and not individually protected by a circuit breaker. Is there any reason a Circuit Breaker from each Inverter is not shown in Victron drawings? or is not Advised? I cannot see an issue with having a MCB per output from. Thinking about connecting multiple inverters in parallel? In this video, we'll walk you through the most important things to know before setting up a parallel inverter system. This method is useful when you want to grow your system, improve performance, or make sure your power supply is more reliable.