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Does a socket exist for these circuit breakers?
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alexthe5th:
Hey folks.
I'm designing a circuit board for a flight simulator that's intended to trip an array of approximately 64 low-current circuit breakers, and the breakers themselves have 0.250" blade ("quick disconnect") terminals on the back, spaced 17mm apart. Below is an excerpt from the datasheet with the dimensions and a picture of one of the breakers.
I was curious if a socket exists to allow me to plug these directly into a PCB (similar to a relay socket), since this would be a far better alternative to running a rat's nest of wires behind a panel. Unfortunately I haven't come across anything that would accommodate these. Just curious if anyone has any ideas or pointers? Searching the distributors (Digi-Key etc.) is a bit of a mess when it comes to looking for a specific type of connector that you don't know the name of. :)
Thanks!
floobydust:
Keystone makes PCB mount quick-fit terminals. Also oddball sizes but good for ideas as Automotive blade fuse clips.
These need a lot of force to remove/install (the breaker), so I would not make a board with too many, unless you first unscrew all the breakers on the strip, from the front panel to take out the strip.
Benta:
Vogt series 3867, specifically 3867F.6 or 3867W.2 depending on your preference for mount. Datasheet attached.
No affiliation.
Berni:
Yep use individual blade terminals as suggested above.
But do make sure you can plug them in/out one by one while disassembled and then install the whole thing as a unit, These terminals grab on with an impressive amount of force even for a single one. Putting like 20 of these on a board will generally grab so hard that you won't be able to pull it back off without damage.
If you want a more permanent quick and dirty solution you can also just mill slots in your PCB and solder to the very end of the terminal directly down to a PCB pad around it.
Benta:
--- Quote from: Berni on July 23, 2020, 08:27:34 pm ---But do make sure you can plug them in/out one by one while disassembled and then install the whole thing as a unit, These terminals grab on with an impressive amount of force even for a single one. Putting like 20 of these on a board will generally grab so hard that you won't be able to pull it back off without damage.
--- End quote ---
This is true, which makes me believe that the 3867W.2 type is the best choice, as it doesn't have the dimple that locks the spade pin, but just relies on spring force.
But it does demand extra PCB slot milling.
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