Wxdc12003 Schematic Better Here

If you already have a stock module, here are the "better" modifications (schematic rework):

Ensure the module is mounted in a non-conductive enclosure to prevent accidental contact with high-voltage traces. wxdc12003 schematic better

: Research on All About Circuits indicates at least two distinct versions: the original WX-DC12003 and the JL-AD3W-HT-V3 . If you already have a stock module, here

These modules are notorious for electrical noise. Adding a small common-mode choke or a 0.1µF X2 safety capacitor at the input can help protect other devices on your grid. PCB Spacing (Creepage): wxdc12003 schematic better