ESP32 Forum

Greetings, everyone! I'm seeking assistance regarding a WiFi circuit breaker I've come across on various online stores. It seems to be controlled by a microcontroller such as the ESP32 or ESP8266, but what's intriguing is that it's rated for a high amperage of up to 63A at 220V. I've scoured the internet for relays that can handle such high currents for these low-voltage microcontrollers, but I've only found options up to 10A or maybe 30Amp as module.

I'm wondering if there's a specific technique or a clever combination of a relay and a contactor that could be used to achieve this high amperage rating in a compact space without overheating. If anyone has insights or suggestions on how to tackle this challenge, I'd greatly appreciate your input. How can I go about accomplishing this?

just a guess, but given the incredible energy transferred through the contacts by current of any value, it would be wise to switch that kind of current with several relays in parallel, thus reducing the "sparking" on the contacts, and the lifetime. For example, for a 63A switching system, I would think 4 rated at 20A would be a conservative long-lived system.