# PV 275A Isolator Switch dissasembly and comment

**URL:** <https://community.victronenergy.com/t/pv-275a-isolator-switch-dissasembly-and-comment/27075>\
**Category:** DIY\
**Tags:** isolators, domestic, victron\_community, diy\
**Created:** [30 March 2025 11:10 UTC](https://community.victronenergy.com/t/pv-275a-isolator-switch-dissasembly-and-comment/27075 "2025-03-30T11:10:00Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![Justin](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/justin/32/24_2.png) [@Justin](https://community.victronenergy.com/u/Justin)\
**Post date:** [2 April 2025 16:05 UTC](https://community.victronenergy.com/t/pv-275a-isolator-switch-dissasembly-and-comment/27075/8 "2025-04-02T16:05:57Z")

</div>

> [@farmeroz](#):
>
> pretty confident it is the standard “universal” much own-labelled (in this cas Victron) switch

I’m sure you’re right, these are YIS Marine BF441 switches (YIS theoretically holds a valid and current patent for them) but YIS sells almost exclusively as “white labeled”, so besides the one with Victron packaging we also see them with various marine store packaging and etc. I mostly just wanted to be sure, when I bring the matter up again, that it couldn’t be claimed that the photos and obvious insufficiencies are the result of some other cheaper clone!

---

_[View the full topic](https://community.victronenergy.com/t/pv-275a-isolator-switch-dissasembly-and-comment/27075)._