Use Figure 1 to estimate the maximum cable length relative to the wire size and the load current in mA when you wire the inputs and outputs.
Note:
Figure 1 applies to the low-voltage (<30 V) inputs and outputs only. The load that is
connected to the relay and local electrical codes determines the required size and
length for high-voltage (>30 V) relay outputs.
Figure 1. Maximum wire length for low-voltage (<30 V) inputs and outputs by current and
wire size