Switched relay box

thingiverse

This model houses a U.S. power outlet, IEC C14 power inlet for common PC cables, an affordable 5V relay module compatible with Arduino, and a small Dupont connector for the control relay module's inputs. When properly assembled, it forms a switched outlet box that can be operated by a microcontroller. The wiring diagram included shows how to make one outlet switched while keeping the other always on. The goal of this model is to provide a switched outlet for my Mostly Printed CNC machine (MPCNC). It's designed to be narrow so it can mount on the side of the machine to offer always-on power to the power supply and switched power to the AC spindle motor. However, this model serves as a general-purpose switched outlet, making it suitable for any automation of AC power needs. Refer to included photographs for assembly instructions. Notes: The faceplate is a standard one cut down to fit the box's width; you could modify something like this if needed. Relay modules vary in size; adjust the screw posts in the model if necessary. The relay control wire consists of three double-female Dupont jumper wires taped together and hot glued in place. WARNING: This switches high voltage! If unsure about its operation or how to build it, consult someone with electrical experience before proceeding. While not complicated, this can kill you if you touch the guts when live, and it may start a fire if wired incorrectly or using insufficient gauge wire (18AWG to avoid serious injury, 14AWG to meet code).