Does the 15A amperage rating for screw terminal blocks such as the ones shown below refer to each pole or to the entire product?
I have a project that will require 5A on each pole. Would this block work for me?
Electronic – Screw Terminal Block Amperage Ratings
amperagecomponent-selectionscrew-terminal
Related Solutions
You could make an adapter board which would have
- male pins to mate with your existing 2x20 female
- screw terminals of any style you like
- mounting holes, which match the mounting holes on your motherboard. This would make the construction more robust.
- other components of your design
I haven't seen screw terminal with the right pitch to mate with (or replace) your female 2x20 connector. I doubt that such screw terminal connector exists.
The part you show in your question doesn't fit Arduino's connectors directly. Also notice that the space between the Arduino board connectors is non-standard pitch, giving you a hard time trying to fit a normal protoboard on the Arduino.
I personally like these ScrewShields for use with Arduino.
There are more variations, some are useful for the extended number of GPIO on MEGA,
Although I'm not sure how to route the attached wires at the inner row at the right end. There must be alternatives that circumvent this issue.
...
Best Answer
The 15 A rating is the current capability across each bus connection and on each terminal. So you can't use two terminals to take 30 A in and ferry it to two further-down terminals to take that 30 A out.
Your description sounds like you want to take a single supply in and route out several 5 A supplies out. You can bring in several 15 A supplies, each on its own wire and near three terminals loading with 5 A. Even though these will all be connected to the same common bus-bar, distributing the supplies and loads that way will be fine. (I designed a similar arrangement recently, routing out 40 A to a variety of loads.)