This is a Capacitor bank switch for PFC (Power factor correction)
Parts List:
400V 0.1uF capacitor (10PCS)
400V 1uF capacitor (20PCS) (the capacitor value is optional but should be 1uF or less)
Toggle Switch (30PCS)
10A Fuse with holder
Terminal 2P (2pcs)
You can download the Gerber file of this PCB from here:
https://www.pcbway.com/project/shareproject/PFC_Educational_Capacitor_bank_with_switches.html
Watch this Video for more Details:
