Electronics > Projects, Designs, and Technical Stuff

"No-crimp" connector idea

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Yansi:

--- Quote from: FreddieChopin on September 15, 2019, 01:44:32 pm ---
--- Quote from: Yansi on September 15, 2019, 11:06:18 am ---If something is overloaded, then probably the overloaded components is not at fault, more likely You who put it there incorrectly in the first place.
--- End quote ---

At work we use YDYp 3x1.5mm cable to wire outlets. Sometimes B16 breaker wont trip with something heavy connected (like dishwasher or kettle) but WAGO will burn  :-- while screw connectors are fine  :-+ It's simple math - more connection area -> less I^2R losses -> less heat.

--- End quote ---

If you do that, you should get slapped.  On a 16 Amp circuit, 2.5 mm2 wires shall be used.

YDYp is good at best as a light fixture wiring.

Monkeh:

--- Quote from: Yansi on September 15, 2019, 02:08:23 pm ---If you do that, you should get slapped.  On a 16 Amp circuit, 2.5 mm2 wires shall be used.

--- End quote ---

Err, that's going to depend on your regulations, so that's a high horse you can abandon rapidly. 1.5mm² is adequate for 16A in many cases.

Addicted2AnalogTek:

--- Quote from: Alex Eisenhut on September 15, 2019, 07:29:52 am ---For solid wire something like that is used on electrical outlets.



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Some info regarding these connections on receptacles and switches:

According to US NEC (National Electric Code), using these push-in connections are not permissible. I've encountered many of these where "do-it-yourselfers" or maintenance people have swapped a receptacle (typically on GFCIs) and installed the new device this way.  This type of connection is notoriously unreliable and many times, regardless of the screw being tightened, the wire slips out when removing the device. The only accepted method is to loop the wire around the screw terminal, pinch the end and the conductor together (so that it holds regardless of whether the screw is tight) then snug the screw and tighten a half turn.

madires:

--- Quote from: FreddieChopin on September 15, 2019, 10:25:10 am ---Wago connectors are horrible because they are prone to rust, have pretty high contact resistance and when overloaded they melt. I worked on many building sites in Poland and everywhere I worked it was forbidden to use wago because when installation is overloaded with electric oven, kettle or arc welder it can start a fire. Instead we use proven screw terminals that can whitstand high overloads.

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Genuine Wago or Wago style copies/counterfeits?

Simon:
The problem is contact resistance. The key is to just fing a connector that you can use is many applications and stick with it. This is like standards. There are so many crimp tools because companies want to screw you for the tools. TE are the worse because all tooling is made by "the" tooling subsidiary that are expected to turn a profit. with mass produced off the shelf die sets costing £500-1500 for tiny pins it is daylight robery when I can get a custom die made for heavy duty pins for £1000

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