Rule R622

R622 *Use appropriately sized wire. All circuits shall be wired with appropriately sized insulated copper wire (SIGNAL LEVEL cables don’t have to be copper):

Table 8‑4 Breaker and wire sizing

Application	Minimum Wire Size
31 – 40A breaker protected circuit	12 AWG (13 SWG or 4 mm2)
21 – 30A breaker protected circuit	14 AWG (16 SWG or 2.5 mm2)
6 – 20A breaker protected circuit	18 AWG (19 SWG or 1 mm2)
11-20A fuse protected circuit
Between the PDP dedicated terminals and the VRM/RPM or PCM/PH
Compressor outputs from the PCM/PH
Between the PDH and PCM/PH
Between the PDP/PDP2.0/PDH and the roboRIO	22 AWG (22 SWG or 0.5 mm2)
Between the PDH and VRM/RPM
Kraken x60 Powerpole Adapter protected circuit
≤5A breaker protected circuit
≤10A fuse protected circuit
VRM 2A circuits ≤2A fuse protected circuit VH-109 Passthrough per R626	24 AWG (24 SWG or .25 mm2) Cat5e/6/7/8 cable, 2 pairs
roboRIO PWM port outputs ≤1A fuse protected circuit	26 AWG (27 SWG or 0.14 mm2) Cat5e/6/7/8 cable, single pair
SIGNAL LEVEL circuits (i.e. circuits which draw ≤1A continuous and have a source incapable of delivering >1A, including but not limited to roboRIO non-PWM outputs, CAN signals, PCM/PH Solenoid outputs, VRM 500mA outputs, RPM outputs, and Arduino outputs)	28 AWG (29 SWG or .08 mm2)

Wires that are recommended by the device manufacturer or originally attached to legal devices are considered part of the device and by default legal. Such wires are exempt from this rule, provided they are powered by the smallest value fuse or breaker which permits proper device operation.

In order to show compliance with these rules, teams should use wire with clearly labeled sizes if possible. If unlabeled wiring is used, teams should be prepared to demonstrate that the wire used meets the requirements of this rule (e.g. wire samples and evidence that they are the required size).