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Questions tagged [enclosure]

An enclosure is a box to hold your electronic device.

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What are these cylinders with holes for in a universal PCB enclosure?

The rubbery screws act like legs on the other side of the enclosure. What are the cylinders with holes for? The metal screws that came with the enclosure don't fit them. What are these screws for if ...
wyc's user avatar
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2 votes
1 answer
67 views

Cable shield connection to metal enclosure on rolling stock

It's standard practice to ground cable shields at both ends to prevent EMC issues. I am uncertain if this practice applies to enclosures installed on train roofs. In my setup, I have an I/O cable ...
M.A.T's user avatar
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2 votes
3 answers
380 views

Safely grounding 120V AC device

I'm pretty new to electronics. I'm building a device that has an aluminum enclosure, is powered by a 120V AC outlet, and requires roughly 520W of total power. My circuit is: AC input with a hot, ...
Sohil Sathe's user avatar
4 votes
5 answers
2k views

Paintless (raw) aluminium enclosures connected to Earth: Bad practice?

I am producing a system with aluminium enclosures all connected to a central unit which is connected to Earth. All the enclosures of the system have their chassis ground connected together via cable ...
Tommy95's user avatar
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0 answers
36 views

Control cabinet rules

I am building an electrical enclosure box equipped with a smart relay (PLC) and containing a 60W 24VDC power supply which is supplied from 230V AC. The PLC controlles a small 15W DC motor and ...
Gurul_01's user avatar
2 votes
3 answers
662 views

PCB inside metal chassis. Is chassis ground required?

I have a project that has a PCB housed in a metal enclosure. The PCB is powered by a USB-C connector. Power input is 20 V DC @ 4 A max. Power is sourced from an isolated AC/DC wall wart adapter. The ...
Vulxcn's user avatar
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2 votes
1 answer
73 views

Is it possible to use a dedicated connector to a standard enclosure?

I am a mechanical engineer updating a small machine at the factory that I work for. Basically it is just a motor spinning an axis using a V-belt. I need to put all the electrical components inside an ...
Gabriel's user avatar
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1 vote
1 answer
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Would a small 5V powered PCB (e.g. Pi Zero) inside a PLA plastic enclosure be OK?

I have a small 5 V PCB e.g. a Pi Zero. This is inside a PLA plastic enclosure currently. It is quite considerably larger than the PCB approximately 5x as wide and 3x as tall. The PCB is raised above ...
sungstack's user avatar
0 votes
1 answer
64 views

Using a gear-styled wiper in a potentiometer

I want to use a custom Gear styled wiper in a regular potentiometer. I found an old product that uses this. It has some weird plastic contraption in order to achieve this. I supply some pictures for ...
user1584421's user avatar
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4 votes
6 answers
1k views

What is the name of these plastic bolt type things holding the PCB to the housing?

What is the name of these plastic bolt type things holding the PCB to the housing in the corner here? Is there a way to remove them and then reattach them? I want to get at the PCB, modify it, and ...
user2042006's user avatar
0 votes
4 answers
527 views

Mechanical design of a 7 segment display

If I want to custom design a 7 segment display, I can design a pcb with LEDs etcetera, but where could I find guides on how to design the shroud (shrouding the LEDs from each other, so they don't ...
kando's user avatar
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1 answer
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A practical problem about wiring technique

When assembling an electronic enclosure and wiring, I encounter a section which I share the diagram below: So as you see above there are three switches where some of pins are connected each other. ...
GNZ's user avatar
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10 votes
4 answers
1k views

System level improvements for a product in a plastic enclosure without exposed connectors to pass IEC 61000-4-2. Discharges through slit zapped LEDs

Our product failed ESD during precompliance. Specifically, 4 LEDs got zapped, six times each (3 positive and 3 negative charges), during an 8kV air-discharge test, causing permanent damage to the LEDs ...
Geo's user avatar
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6 votes
3 answers
304 views

Technical term to define "the grooves" feature in a plastic enclosure

What is the technical term to define those grooves indicated by the arrows, in the attached picture?
Adrian Ionescu's user avatar
0 votes
2 answers
273 views

Does the temperature affect the working of a PCB circuit? [closed]

I use an MP2305DS to convert 12V 5A to 3.3V 2A. The PCB is in a standard IP68 box. Does the temperature affect the operation of the PCB circuit?
defiant_ho's user avatar
0 votes
3 answers
242 views

What is the best way to mount PCB with only 1mm holes in a project box [closed]

I looked at an AC/DC converter suitable for my project, but according to the description it has only 1mm mounting holes (which are also input and output). Thus, it is not possible to use plastic ...
Ybrs's user avatar
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0 votes
1 answer
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How to wire and mount board in an electronic enclosure for robustness?

I need to build an enclosure and for the electrical part. I want to put all electronics inside a small box. I want the enclosure as robust as possible for vibrations transport etc. Some part of ...
GNZ's user avatar
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0 votes
0 answers
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Material thickness for UL94 compatible overmolds?

I would like to overmold a PCBA which needs to meet UL 94V-0 requirements. For previous shell-like enclosures we would just keep everything above the minimal approved thickness specified in the ...
FlorianR's user avatar
1 vote
1 answer
137 views

Using a USB adapter inside an enclosure?

I want to make a device that uses AC 220-250V power (to control relays to switch devices on/off) and prefer a single wire (+/-/gnd) to a wall socket box (thus not a separate 5V adapter). Would it be a ...
Michel Keijzers's user avatar
0 votes
1 answer
847 views

How do I use a heatsink in a sealed enclosure?

I'm working on a project with a set of individual LEDs (datasheet) permanently set up in an outside setting in winter, at night. I need to build separate enclosures for each of the LEDs because they ...
EKB's user avatar
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2 votes
1 answer
242 views

Safe Enclosure for Mains Powered Project

I am working on a project that uses 120VAC power. I have made a lot of enclosures for low voltage projects in the past, but this is my first high voltage project that needs an enclosure. I am ...
Emmett Palaima's user avatar
5 votes
3 answers
3k views

Safest way to ground a metal enclosure

I am currently building a nixie clock with some high frequency components (GPS) and I am planning on putting the clock in a metal enclosure. The highest voltage used in the clock is approximately ...
hlove's user avatar
  • 63
1 vote
2 answers
262 views

Providing sufficient power to multiple components inside of an enclosure with one power input [closed]

First of all, I apologize ahead of time if my terminology is a bit off. I'm more of a software guy, so the hardware side of things is a little tricky for me. My problem is as follows: I'm building a ...
Mav's user avatar
  • 41
5 votes
3 answers
512 views

IP64 PCB connectors to avoid wirings

To minimize the costs for wiring an electronic enclosure, often designers put connectors at the edge of the PCB, that fit in slots made on the enclosure walls. The most common example is a mini PC: ...
Mark's user avatar
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1 vote
1 answer
66 views

Solid State Relay Heat Release

I want to use a SSR (AD-SSR6T25-DC-280A) to switch on and off a 24 VAC water solenoid valve. The solenoid has an in-rush current of .9A, with a 400mA holding current. I want to mount the SSR in an ...
Geo's user avatar
  • 13
1 vote
1 answer
652 views

Mounting PCB in extruded aluminum housing

For a small hobby project and to learn a bit about electronics, I would like to make a DC/DC uninterruptible power supply. I really like the look of the extruded aluminum cases. However the off the ...
Ian Wesley's user avatar
2 votes
0 answers
58 views

Troubleshooting component failures in a metal box (that's next to an air band radio transmitter)?

I have a little project that's been experiencing component failures, and I'm having trouble figuring out what to do about it. I think the issue is ESD but that's just a guess. Also I'm a total noob so,...
danavee's user avatar
  • 155
0 votes
2 answers
155 views

Housing a Power Supply

This is an extension to the question "Safely housing a power supply" asked by Harry Braviner. I plan to use a very similar power suppy as the main compnent: In my case the need is to power ...
user3588542's user avatar
1 vote
1 answer
248 views

Small enclosure. Waterproof cable entry

Have a 5mm diameter cable entering a small enclosure. What's the best way to seal it? I was thinking neutral cure silicone. Are there better solutions? I know cable glands are a popular way of ...
Alex's user avatar
  • 101
0 votes
2 answers
7k views

Finding the exterior dimensions of a USB type-c receptacle

I'm going to be using this USB type-c receptacle for my project. For this project, I need to make a cutout in my enclosure to make this receptacle fit. I consulted the data sheet and found technical ...
user3900751's user avatar
1 vote
0 answers
579 views

How do I properly ground DC and AC in the same enclosure (DIN rail)?

I am building an electrical panel with AC and DC supplied power. My AC ground wires connect to a green DIN rail connector which has metal on the bottom of this terminal and connects to the DIN rail ...
sensei247's user avatar
0 votes
0 answers
2k views

How do I properly ground AC terminal blocks on a DIN rail and respective back plane?

I am building an electrical panel with AC and DC supplied power. My AC ground wires connect to a green DIN rail connector which has metal on the bottom of this terminal and connects to the DIN rail ...
sensei247's user avatar
0 votes
2 answers
71 views

Can metal electrical panels have a non-rectangular or squared shape?

Standard metal electrical distribution panels are rectangular or square shaped boxes. Is there any standard - IEC, NEC, etc.- contraindicating the manufacturing of a custom shaped box for an ...
Brethlosze's user avatar
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1 vote
2 answers
494 views

Tweeter speaker enclosure size and material

I try to make a system that generates high frequency tones ( 12-17kHz ) only. Use some cheap tweeters like : https://www.banggood.com/100W-Piezo-Horn-Speaker-Tweeter-30KHZ-Piezoelectric-Head-Driver-...
user261847's user avatar
3 votes
0 answers
1k views

Why do some PCBs have exposed copper along the edge even when mounted in plastic enclosure? [closed]

I've already read about reasons for exposing copper at the perimeter of a PCB (i.e. Why do some PCBs have exposed plated perimeters?). It seems that the main reason to completely expose the copper ...
CatastrophicFailure's user avatar
0 votes
1 answer
84 views

How are components typically connected to a PCB when they are mounted in an enclosure?

Many small speakers are designed with screw holes to mount them in enclosures. They also have connectors to solder wires so they can be electrically connected to a PCB. How do I do something similar ...
Jeff's user avatar
  • 131
0 votes
2 answers
149 views

going from 2AWG wires down to 14AWG

So I basically have a 2 AWG power wire, but I want to end up with about 5 or 6 14AWG wires so I can put the power through a connector. Does anyone have methods of going from a 2AWG to multiple 14 AWG ...
Jason Nguyen's user avatar
0 votes
0 answers
79 views

Safety when creating electronics enclosure

I'm designing an electronics enclosure to be placed in series with the power cord for a device for control purposes and would like to know safest methods to do power breakouts within the plastic box. ...
coolro's user avatar
  • 41
0 votes
0 answers
385 views

Do I glue the screw when mounting the PCB to enclosure or not?

Well, this is a handheld device we are developing at our firm. We bought the enclosure from a chinese man. in AliExpress. It's made out of ABS. The device is going to be used in an industrial site. ...
BHP's user avatar
  • 173
3 votes
1 answer
251 views

PCB Mounting solutions in outdoor enclosure?

I've completed the design for my pool timer and now I'm down to designing how this board will actually hold itself inside an enclosure. I already have a box that I'd like to re-use. It looks like ...
ti_chris's user avatar
-1 votes
1 answer
93 views

Is it reliable to use old computer hard disk as an external hard drive to store data? [closed]

I have a hard drive which cannot boot windows but works for even at higher transfer rates also its 6 years old, I found cheap enclosure SATA to USB 3.0 enclosure that works for even 100Mbps transfer ...
oppo's user avatar
  • 547
0 votes
1 answer
43 views

Glue connector to metal/resin case

Want to use this type of connector https://cletk.en.alibaba.com/product/60724170404-804809515/Usb_Cable_Charger_Magnetic_Dc_Power_Cable_Connectors_Power_Adapter.html?spm=a2700.icbuShop.41413.12....
Alex Popescu's user avatar
0 votes
2 answers
93 views

Power connector for small product

I have a small (50mm x 30 x 12) battery-powered device to which I want to add a charging connector. I've been looking at panel mounted connectors such as this https://www.mouser.co.uk/ProductDetail/...
Alex Popescu's user avatar
0 votes
3 answers
1k views

Air circulation and condensation in custom enclosures for outdoor project

I am designing 6 custom enclosures in mild steel to be placed outdoors for 5 months in London UK. They will be interconnected, only one will contains 4 power supplies, all with conformal coating and ...
Multimarcus's user avatar
1 vote
1 answer
766 views

Which material enclosure to avoid impeding signal of Bluetooth and wifi?

I’m making an enclosure for: https://www.digikey.in/product-detail/en/ESP32-PICO-KIT/1904-1030-ND I read that Bluetooth signal can be impeded by 37% by a plastic case. If that is so, then how does ...
Kaizer Sozay's user avatar
1 vote
2 answers
357 views

Aligning PCBA on a plastic enclosure

I am trying to align a PCBA very accurately (within +/- 0.5mm positional tolerance) on a plastic enclosure. I'm thinking about using two 2mm diameter dowel pin that is press-fitted into the plastic ...
Philip C's user avatar
0 votes
1 answer
363 views

Packaging PCB and battery inside enclosure - foam

What's the name/type of the dense foam that's generally used in consumer electronics to stop components from vibrating around and tightly packaging everything together? In my case, this would be for ...
Alex Popescu's user avatar
0 votes
1 answer
83 views

Do enclosed switching power supplies follow any standard for their chassis size and mounting hole distances?

Do enclosed switching power supplies follow any standard for their chassis size and mounting holes distances? or each manufacturer has its own conventions?
Microsoft Linux TM's user avatar
4 votes
1 answer
306 views

Where to measure ambient temperature limit inside of an enclosre?

In a project, we are to place several components inside of an enclosure. Some of these components are to be considered safety critical, and their specified operating conditions must not be exceeded. ...
Jonatan G's user avatar
1 vote
2 answers
4k views

WiFi Module inside a metal body

I am using ESP8266 (2.4GHz wifi) in my product which has metallic enclosure on outside but only plastic on the other side. I will be placing this device outside home near gate. Will it be problematic ...
Akshit's user avatar
  • 19