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looking for a way (connector) to interconnect identical pcb's
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nctnico:

--- Quote from: kripton2035 on November 02, 2018, 01:59:29 pm ---something like this is ok for me, but I want no screw and no wire, only a male and female connector


--- End quote ---
Wurth has PCB male / female versions of these plugs. They call them reverse gendered.



http://katalog.we-online.de/en/em/TBL_3_81_3103_HORIZONTAL_PCB_HEADER_W_FLANGES_6913103400XX
Ian.M:

--- Quote from: kripton2035 on November 02, 2018, 01:55:08 pm ---
--- Quote from: Benta on November 02, 2018, 01:25:05 pm ---An idea of the size would help.

--- End quote ---
between 3 and 10 pins. 2.54mm spacing or eventually 1.27mm
I think 2.54mm for mains pins spacing is the minimum ?

--- End quote ---
The pad width subtracts from that 2.54 mm spacing, so its extremely unwise, and probably dangerous to put mains on a 2.54mm spacing connector.   Its possible to omit one pin (remove all metal parts) in the connector between Line and Neutral to get 5.08 mm spacing which with narrow PTH pads will let you maintain 4mm clearance, but you'll probably need to omit more than one pin to get adequate clearance between mains and low voltage circuits.   You may also need to slot the PCB under the connector to get adequate creepage distances.

If you are omitting pins anyway for clearance, its worth putting insulating plugs to block the unused positions in the female half connector to key it so it cant be mated with a similar connector with a different arrangement of mains and low voltage contacts.
max_torque:
IMO, even for hobby use, putting potentially lethal voltages in the same connector as low voltage signals is bordering on negligent.  Certainly, in the (extremely unlikely) case of someone being injured, in the UK at least, you'd expect to be pulled up in front of the courts, potentially getting a fairly lengthy prison sentence!

Put the mains, on a separate, suitably rated, and suitably insulated, and very well labelled connector(s)

  HV voltage 4mm banana sockets (touch proof and colour coded) are one (good) option





Or use "Booted" faston spade terminals







You can thank for for saving your life later........   :-DD
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