Every Smart WiFi RCBO Is Trip-Tested Before It Leaves Our Factory

A leakage protector only matters if it trips when it's supposed to. That's why every Smart WiFi RCBO Circuit Breaker with Overload & Leakage Protection from ChengXi Electric Co., Ltd. goes through a unit-by-unit leakage trip test before shipment — not sampling, every single piece.

What We Test Before Shipment

• Leakage trip response – Each unit is tested with a simulated leakage current to confirm it trips within the standard response time.
• Leakage self-check function – Verifies the built-in self-diagnostic feature correctly detects abnormal circuit conditions.
• Leakage current monitoring accuracy – Checks that the current shown in the app matches the actual injected current within tolerance.
• Overload / short-circuit / over-under voltage interlock – Confirms all protection functions trigger correctly without interfering with each other.
• WiFi/4G alarm push test – Confirms leakage alarms are pushed to the remote app reliably, not just that the breaker trips locally.

Why It Matters

Once installed in a distribution box, an RCBO usually sits idle for months or years, and users rarely check whether it still trips correctly. Catching a weak unit on the test bench — not after an incident — is the whole point of this step.

ChengXi Electric maintains a complete quality management system across its low-voltage product line, with products certified and used across power, petrochemical, metallurgy, and rail sectors.