Questions tagged [certification]

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1answer
50 views

Finding manufacturer of product based on certifications

I really do not know where to ask this question so I am starting here. If you believe there is a better place let me know and I will gladly move post. I bought an induction cooktop from amazon and ...
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1answer
49 views

Understanding cable standards for low voltage conductors in high voltage environments

I am currently getting some custom cables made and having a serious communication issue with several cable manufacturers. I want several low voltage (5V DC) insulated conductors in a jacket that can ...
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0answers
23 views

LiPo battery certification standards for EU and US

We are bringing a wearable product to the market that is powered by a 3.7V LiPo battery. The product will be sold initially only in the EU and US markets. We are currently in the process of performing ...
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1answer
39 views

CE/FCC/RoHS/etc certification for Intel NUC and other barebone MiniPCs?

Intel sell the Intel NUC without a hard drive or ram. They provide a list of compatible rams and drives. By sliding in the ram stick and drive, am I not invalidating all of the certificates on the ...
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2answers
107 views

How to get CE markings for a PC I assembled from CE certified components?

If I purchase a kit from a website like overclockers.co.uk which includes a quality power supply, motherboard, CPU, etc. Everything is CE certified and all components are the highest grade. All I am ...
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1answer
30 views

Significance of V < 50V for US certification purposes

In the EU 2014/35/EU requires increased producer diligence and formalities when an electronic device used voltages greater the 50V ac either as input or as output. Can somebody explain to me whether ...
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1answer
47 views

Modifying and recertifying equipment for Explosive Atmospheres IEC 60079

I'm wondering what is involved in modifying equipment that has been certified for use in explosive atmospheres, such as ATEX Zone 1 or 2. A couple of times recently at my work we have discussed ...
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1answer
40 views

Certifications required for a circuit board/ product

I am developing a product that uses a bluetooth module (rigardo bmd-350 based off of the nrf52832) has a daughter/breakout board for interfacing with eeprom chips, pumps powered by small dc motors, ...
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1answer
40 views

FCC / CE requirements for adapter pcb?

A product consisting (electronically) just of a PCB with a male USB-C one one side, 5mm of traces and a female USB-C on the other end. No other components at all. To be used as consumer device. How ...
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1answer
108 views

Developing a Medical Product Using AliExpress Modules

We are developing a medical product and we are using some modules that we got from AliExpress (www.aliexpress.com). They are really cheap and gave us the same results with the modules which we made ...
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1answer
47 views

What 'rated voltage' means in VDE certificates?

In a VDE certificate for a component (plugin green terminal blocks), a column gives the "Rated voltage(s) / V" with a value of "400" without specification wether it's VAC or VDC. Does this mean that ...
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1answer
75 views

UL certification requirements

I'm designing a circuit board for a large industrial product which is intended to be UL certified, so the boss wants as many individual submodules to be UL certified as possible, including mine. The ...
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1answer
35 views

How do I determine battery manufacturers/companies whose batteries that have met UL 1642 certification?

How do I determine battery manufacturers/companies whose batteries that have met UL 1642 certification? I am asking because I want to determine other companies whose products have successfully ...
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2answers
62 views

IoT Certification Legality

I am developing an IoT product for a company. The product runs off of two alkaline batteries at a max of 3.2V. It is fully enclosed in a solid plastic case, with small panel openings for a switch and ...
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1answer
90 views

What's this regulatory symbol?

I am trying to identify this symbol as a part of personal research. I could not find any leads with Google Image search.
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1answer
207 views

Switzerland - IEC vs UL vs VDE vs CSA ratings [closed]

I'm currently looking for a new connector for a PCB embedded in a household device with ABS housing. The connectors are intended to have 3 phases, 1 neutral and 1 ground wired to it. On swiss ...
2
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1answer
440 views

CE mark on a PCB sold as a part of a kit or part of a project, necessary?

I've a prototype that I want to sell as a product. My prototype is made by an aluminium structure, a motor, a moving part (made by 3D printer) and an electronic circuit. The electronic circuit is ...
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1answer
802 views

Are USB protocol and connector free or are they patented?

For a hobbyist developing a device, certification is not pleasant. I am wondering if implementing USB in any way is patented or needs a certification? I am concerned about both protocol (USB-2,3) ...
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1answer
78 views

Running or belt conveyor with electric motors and control panel need a kind of certification to be sold in US market?

We want to provide new machinery of a runner conveyor and a belt conveyor in the US market. The equipment consists of: the basic construction (metal parts, runners, drums, and belts), electric ...
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1answer
73 views

Do we need certifications for device designed for 240V

I have completed the design of a circuit board where the mains 240V can be connected with screw terminals. This is just a sub-assembly unit. This would normally be used in industrial environment. Are ...
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1answer
50 views

Can we install product above FCC test power level declared in certification report

we have a product which has radio of 1W maximum output power , we have sent product for FCC through party lab, and they certified the product with 18 dbm only. So we get the certificate with only 18 ...
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2answers
150 views

Can transformerless power supplies be UL/CSA certified and is there any specific standard they must meet?

I am trying to bias a linear optocoupler on the AC mains side of a circuit, in order to transfer analog information to the secondary side of the circuit. I have designed the following capacitive power ...
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0answers
73 views

Does anyone know the UL standard related to resistors and isolation on AC mains?

I have a circuit that is attempting to measure AC line voltage 120-240V but I was told by the certification test lab that my voltage divider resistors would require an expensive 3 week soak test. The ...
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3answers
273 views

USB current draw and CE marking

We have developed a docking station product which charges multiple devices simultaneously, and currently ships with a 5V, 3A barrel jack adaptor. We are looking to move this over to USB power, and ...
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1answer
107 views

EN 300 328 CE radio certification with power limit

We have developed product for Malesia country, where we need local SIRIM certificate. RF module we used in our product is 2.4Ghz wifi mesh, with max 30dbm (1 watt) output power capacity. To get ...
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0answers
133 views

Female symbol on PCB silkscreen?

You can see the symbol on the upper right hand side of the board, what appears to be a pictogram of a woman wearing a dress, similar to a bathroom sign (?) Wondering what this is.
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1answer
3k views

Symbols: Double-arrow circle enclosed “10” on electronic appliances

What does the symbol that says 10 inside the double arrowed circle mean? I have seen a similar symbol on another appliance that had the number 25
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1answer
101 views

Transformers headroom and “mandatory” components

I have calculated the maximum (Worst Case) current consumption of my circuit to be 88mA. Looking at transformers I found one at an specified max output current of 90mA for parallel winding which is my ...
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1answer
829 views

Can you reuse FCC certification from a pre-certified RF chip and antenna for a new product?

I am in the process of designing a board that turns a Gameboy into a Bluetooth controller. Due to size constraints, I would like to use the ESP32-PICO-D4 standalone chip by Espressif instead of one of ...
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1answer
111 views

What's this certificate mark?

The bottom row has an ETL Mark, a double insulate, an FCC logo, not quite sure what that little house next to the FCC logo is but what I am most intrigued about is the logo above them, it looks like ...
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1answer
678 views

RC snubber on bridge rectifier (capacitor rating)

I am using a bridge rectifier on the mains and across each diode I have placed a RC snubber for EMI mitigation. (C is rated at 1Kv) My question is...on the C (from the RC snubber) should I use Y or X ...
2
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2answers
139 views

Understanding ETSI EN 300 frequency hopping transmit time limit

In ETSI EN 300 328 V2.1.1 (2016-11), section 4.3.1.4.3.1 Non-adaptive frequency hopping equipment (under Requirements for Frequency Hopping equipment limitations), it is stated: ...
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1answer
687 views

CE marking of device that contains CE certified module

I am using a bluetooth module in an electronic product. This bluetooth module is CE certified. When it comes to CE marking of the whole product, do I need to perform tests of the bluetooth part of ...
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1answer
2k views

What is this circular symbol on my SD card?

I have bought a SD card, same as in the picture below. I have found a completely new logo printed on that. I have searched on the internet for this logo, but didn't find anything. Can anyone here ...
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1answer
78 views

Certifications and Standards [closed]

I am looking to import machinery (CNCs, extruders, presses etc.) from China to use in my own factory for a specialized production in the USA. Machines are produced by smaller shops in China without ...
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1answer
345 views

FCC Part 15 Class B Declaration of Conformity (DoC)

I'm familiar with Part 15 FCC testing for intentional radiators (3 meter limits of certain power, must be filed with FCC, requires accredited lab), but I'm a little unclear on the Class B ...
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2answers
67 views

International Electrical Certification

I am involved in a project where we will be doing a run of about 200 products. We do not know where in the world our client will be sending these products. Each product uses mostly off the shelf ...
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6answers
9k views

Does my Arduino-based device need FCC certification?

I've built a small consumer device that contains an Arduino Nano. It's coupled to a custom daughter board that allows it to pulse a 12V electromagnet at about 1 hertz as well as inteface to some ...
2
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1answer
57 views

Where can I find ultrasound machine regulations?

Diagnostic ultrasound machines are limited in their output power so that the sound waves don't cavity the microbubbles in the body. What I want to know is how do manufacturers prove their power ...
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3answers
2k views

IEC 61000 vs IEC 61326? Electromagnetic compatibility(EMC)

I have been working on a product which requires EMC tested based on an IEC Standard. The product application is measurement and monitoring of various Solar String Parameters like voltage, current and ...
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2answers
97 views

How can I calbrate my power meter?

I used to work for a company that made power meters but only worked on the desktop application (user interface) side of things and never really learned completely how some processes occur, like the ...
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1answer
620 views

Question about ETL and UL Certifications for battery powered tools

A friend is considering importing a 15 volt Lithium-Ion Battery (2600mAh) operated tool from China to sell to consumers in the USA. The battery charger that comes with the sprayer has a stamp that ...
0
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1answer
579 views

Limit of the voltage and current of my electronic product for CE certification

I would like to know if there is a regulation that would require me to get my product certified because it uses to much power or uses a too high voltage. My product uses an external adaptor AC-DC ...
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4answers
4k views

At what level of complexity should I consider UL listing my widget?

I am interested in making a widget to sell, but it will probably have a small market and small volume. At what level of complexity should I consider UL listing (or otherwise certifying) my widget? I ...
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1answer
208 views

What special problems are there if I use two radio modules on the same board?

I have to develop a project that basically receives and sends data on a Bluetooth LE module, and then changes the stream a bit and re-sends or receives that information on another radio module in the ...
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2answers
441 views

Do electronic devices like a servo motor need a certification to be sold in the US market?

We want to start a crowd funding project for our IoT servomotor. It comes with an integrated controller and an ethernet connection (no wireless) and now we are not sure about certifications (FCC, RoHS,...
3
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2answers
223 views

What tests, certifications and labels do I need on my new electronic gadget? [duplicate]

I have designed a VERY basic lighting gadget -- it's basically a flashlight. It turns on and off with a switch and is powered by a rechargeable Lithium Ion Battery via USB cable. It consists of LED's ...
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1answer
876 views

Li-ion battery IEC 62133 compliance

Hei, Wondering if any of you have experience on secondary li-ion batteries (not battery packs) that comply with IEC 62133 certification? I can't seem to find abundant amount of batteries covering ...
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2answers
411 views

FCC Requirement for device to device output power variability?

I'm working on a BLE capable device using the Nordic Semiconductor nRF52 SoC, and we're going to have to go through FCC testing. But one thing that I am not clear on, at all, is the tolerance in ...
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0answers
150 views

Realtek 8188 WiFi module continuous transmit mode [closed]

I'm going to certify an appliance with a RT8188 WiFi module, for which I did the Android port and wrote the software. The certification laboratory is now asking me to write a test software that can ...