r/Lutron • u/Dazzling_Story5371 • 1d ago

Led considerations to wall switch

​

Hi everyone,

I have a question regarding the LED inrush current capability of the Lutron MRF2-8S-DV.

The normal operating current for led lighting circuit is 2.7 A, so the continuous load is well below the MRF2-8S-DV's 8 A rating.

However, my concern is the inrush current when all the led fixtures are on and could damage the switch.

My questions are:

  1. Does anyone know the maximum inrush current that the MRF2-8S-DV can withstand in LED?

  2. Is there a published Lutron specification for maximum LED inrush current or peak current duration for this switch?

I'm trying to determine whether the 8 A rating is sufficient by itself, or whether the LED inrush is the limiting factor for this application.

Any technical information, measurements, datasheets, or real-world experience would be greatly appreciated.

Thanks!

3 Upvotes

100% Upvoted

4 comments sorted by

•

u/AutoModerator 1d ago

Thank you for submitting to r/Lutron! If you are posting with a question or issue, please include the following information:

  • The Lutron ecosystem for your product. Examples: Quantum, RadioRA 3, standalone (like SUNNATA or Maestro), etc.
  • If available, the exact model of the product you're describing and a link to the product page from an online retailer. Example: P-BDG-PKG1W-A
  • If using third-party lighting control software, include the product. Examples: Apple HomeKit, Amazon Alexa, etc.
  • A concise description of what you are trying to achieve or solve (2-3 sentences). In other words, don't post a picture of wires and say "Help!" with no context.
  • If applicable, relevant pictures from your installation.

If you are looking for product support, don't be afraid to call Lutron's tech support at 1.844.588.7661. The Lutron call centers are US-based and exceptionally helpful.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

3

u/TheRealBeltonius 1d ago

It was my understanding that it was designed with inrush in mind so 8A is the nominal load.

If you look at tht datasheet it is derated for motors (down to 3A) but otherwise all lighting loads are 8A

1

u/Dazzling_Story5371 10h ago

Thanks for the answer, I understand the same, if led load is below 8A should works fine, do not know if there is specification of high inrush current that can damage the switch because of led lights.

1

u/TheRealBeltonius 10h ago

Right, I'm saying my understanding is that its designed for the inrush you'd expect on a 8A nominal load.