RC snubber built in with 2PM Gen3 ?

[SteveB]

Hi all,

I'm new with Shellies and there is a question relating RC snubbers to drive covers.

For Plus 2PM it is recommended https://kb.shelly.cloud/__attachments/391315459/Shelly Plus 2PM multilingual printed user and safety guide.pdf?inst-v=77c4116f-ac29-41fd-b00f-7a56120b8865, for 2PM Gen3 no words about in the guideline https://kb.shelly.cloud/__attachments/391315459/Shelly 2PM Gen3 multilingual printed user and safety guide.pdf?inst-v=77c4116f-ac29-41fd-b00f-7a56120b8865; But there is also written in tech details that it comes with 'Overvoltage protection' and 'Overcurrent protection' and supported load types 'Inductive with RC Snubber'.

Does it mean that RC snubber functionalities are built in with2PM Gen3 ?  Or is use of them also recommended (but forgotten to describe)?

Thanks a lot!
 

[thgoebel]

18 minutes ago, SteveB said:

Does it mean that RC snubber functionalities are built in with2PM Gen3 ?

No.

18 minutes ago, SteveB said:

Or is use of them also recommended (but forgotten to describe)?

Obviously, indeed…

[MPL]

In cover mode, how many rc snubbers need to be installed and how does it/ do they need to be installed? Is there a manual or tutorial for this?

[thgoebel]

Two snubbers.

Installation in parallel to the motor coils or O1 - N and O2 - N.

Edited December 29, 2024 by thgoebel

[wooly]

most motors have them already installed.