openinverter forum

Posted: **Tue May 18, 2021 9:08 am**

Hello,

we spotted this today and wondered what the purpose is:

HV+ and HV- pass through it on the way to the inverter & charger.
The 6mm2 going to the heater do not pass through it.
It seems very weak, barely pulls on a screw.
I measured 5kOhm resistance on it.

We assume EMF?

Is it a Ferrite Bead? https://en.wikipedia.org/wiki/Ferrite_bead

Posted: **Tue May 18, 2021 9:14 am**

https://en.wikipedia.org/wiki/Ferrite_bead

A ferrite bead (also known as a ferrite block, ferrite core, ferrite ring, EMI filter, or ferrite choke[1][2]) is a type of choke that suppresses high-frequency electronic noise in electronic circuits.

Yes it is.

Posted: **Tue May 18, 2021 9:18 am**

Neat, thanks! Surprised not all cables are passing through it.

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