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They look thick and thinner wires worked fine on my workbench during prototyping. I was planning to use 14 gauge wires for my 5.5 A (5V) power part. All 4 wires in this cable are very obviously in the bundle. Ok it would be 7 amps for "chassis wiring" but if another answer about the chassis wiring is right this only applies for the single wire free in the air and not in the bundle. Even all four wires together cannot make it as much as 4 amps. How this could possibly be? There is the table here that says the gauge 22 can is only allowed to carry 0.92 A for "power supply". I found the cable (1533576 - Actuator/Sensor-Cable, M12 Socket - Open End Connector, 2m, 4A, 250V, Phoenix Contact) here that is claimed to handle 4 A and is then written that it has a 22 AWS cross section gauge, 4x 0.34 mm².
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