What does RU (UR) label on DC power relays mean?
Apr 5, 2016 · I'm trying to figure out what does RU or maybe UR label mean on the body of many many relays. It's labeled almost on all (I've seen so far) DC relays which make me very curious :). Any …
If a device has UR sign on the label, it called it is UL approved or ...
May 30, 2017 · The UR mark is used for components of products that would need a UL product listing. When a product made with UR recognized components is submitted to UL listing, UL does not need …
pcb fabrication - What company logo is this? It is on a PCB ...
Jan 24, 2025 · Note: this logo (messed up "RU" with the R backwards) indicates a "recognized component" that can be part of a larger UL-certified product. The actual UL mark (for a final product) …
Blower motor run capacitor replacement - Electrical Engineering Stack ...
Sep 15, 2020 · Note that the EEC capacitor does not appear to be a UL-recognized component; the original All-Earth is (the backwards UR logo on the bottom-left of the silkscreened area).
Nucleo F303RE STLink connection problems in STM32CubeIDE
Apr 13, 2023 · I have tried to flash/debug Nucleo F303RE using STMCubeIDE and I have encountered several problems. First when trying to start debugging I receive following message: "Starting …
Meaning of certain symbols and labels in Circuit board PCB
Jun 25, 2020 · I have a schematic of an electronic circuit board or PCB. I want to know the meaning of certain symbols and labels in the diagram. I have highlighted the diagram below with green, yellow …
Programming STM32 via USB using the CubeProgrammer
Apr 4, 2023 · Image as Text: 10:48:33 : UR connection mode is defined with the HWrst reset mode 10:48:33 : Error: Establishing connection with device failed What I tried: I set the BOOT0 Pin, High, …
How to interpret voltage/current for relay? - Electrical Engineering ...
The reverse image stylised "UR" logo on the relay is the symbol of the UL organisation (Underwriters Laboratory). TTI on the relay is the manufacturers brand name.
is Bluetooth SIG registration required? - Electrical Engineering Stack ...
Mar 2, 2023 · I do not care about using the Bluetooth Logo. can I sell my product without registering it with the Bluetooth SIG.? Can I just claim in my documentation that the product is "designed for BLE …
What is the common, normally open, normally closed?
Nov 10, 2016 · I have the relay you see here: How do I read that diagram - or specifically, which contact is the common, normally open, and normally closed contact?