3P wifi smart circuit breaker

A WiFi Smart 3‑pole (3P) breaker is essentially a miniature circuit breaker (MCB) designed for three‑phase electrical systems, with added “smart” features like remote on/off, scheduling, energy monitoring, and sometimes leakage detection. Here's a breakdown based on current products:

What It Does

Circuit Protection: Provides standard overload and short‑circuit protection for three‑phase circuits (rated usually 16–125 A and up to 6–10 kA breaking capacity) amazon.ae+14cnzhechi.en.made-in-china.com+14etek-china.com+14.

Wi‑Fi Connectivity: Can be controlled via an app like Tuya or Smart Life (2.4 GHz Wi‑Fi) to remotely turn power on/off and schedule operations oraxel.com+4oraxel.com+4intercyprus.com+4.

Energy & Phase Monitoring: Many models include real-time current, voltage, power, and usage tracking etek-china.com+2intercyprus.com+2etek-china.com+2.

Safety Features: Some include earth-leakage protection (similar to RCBOs) or allow setting thresholds for overload, under/over-voltage, etc. cnzhechi.en.made-in-china.com+4mritleb.com+4reddit.com+4.

Common Specs (Example: 3‑Pole, 63 A)

Rated current: typically 16, 25, 40, 63 A (some go up to 125 A) etek-china.com+5cnzhechi.en.made-in-china.com+5ginosmart.com+5.

Voltage: Usually AC 400 V three-phase (and 230/240 V per phase) .

Breaking capacity: 6–10 kA, meeting IEC/GB standards 

App & voice control: Supports Tuya or Smart Life apps,

What Users Say

Some hobbyists warn these aren't "true" safety-certified breakers and may rely on cloud connectivity, which can pose risks if firmware is non‑local or unstable. One Reddit user cautioned

Those aren't circuit breakers … they are relay‑based… Mistaking one for other is deadly dangerous.” reddit.comreddit.com

Another pointed out issues with Tuya/Smart Life reliability when integrating with home automation platforms .

Use Cases & Considerations

Who it's for: Ideal for three-phase industrial appliances—water pumps, HVAC units, machinery—where you want remote control, scheduling, and energy insight.

Important warning: These devices may not replace true safety-grade breakers. They might not meet local electrical codes, and many rely on cloud services.

If your priority is safety and code compliance, consult a licensed electrician.

For smart-home integration, local-control-friendly brands like Shelly might be safer and more reliable reddit.com+1reddit.com+1.