Frequently Asked Question

Current Limiting - How and Why?
Last Updated 3 years ago

What is 'current limiting'?

Current limiting is when you adjust how much power is coming into your system, typically from shore power. You may be plugged into 15A shore power, 30A, or 50A. Some occasions may require you to turn down or "limit" your current so as to protect your system and not flip a breaker.

When/why do I need to limit the current?

The current limiter's job is to prevent the input breaker from popping. Due to the potential inrush current of AC loads, the inverter will reduce the current below the current limit value so that it can react quickly enough to prevent the input breaker from popping.

Current limit values are in place for the safety of the connected equipment. The input current limiter isn't intended to allow the maximum amount of power to pass through. In other words, you can't leave it at 50A if you're plugging into a 15A campground. Typically the Input current limiter should be set to match the shore power.

How do I use the current limiter?

If you're using a Victron Digital Multi Control, you will use the dial on the right of the device. Turn it up or down to match the AC input rating.

If you're using a Victron Touch 50 Monitor and Victron Cerbo...

  1. Touch the screen, so the bar on the bottom appears
  2. Click 'Menu'
  3. Select your inverter/charger from the Device List (example - Victron Multiplus)
  4. Check the Mode on "Switch" to ensure the system is either "On" allowing shore power (either save, or tap the back arrow)
  5. Tap the "Input current limit" option and set it to match your AC input rating by tapping the -/+ buttons appropriately (i.e. 15A or 30A)

Cody demonstrates how to use the input current limiter setting on a Multiplus 3000 system. It has a Cerbo and Touch 50 Monitor. This particular system also includes an AM Solar Smart Phase Selecter (SPS) (patent pending).

Please Wait!

Please wait... it will take a second!