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Our AC wallboxes (7kW–22kW) use an external RS485 Modbus RTU link connected to standard DIN-rail energy meters or current transformer (CT) clamps installed at the main household service panel. The charger's onboard microcontroller reads total household power consumption in real time and automatically throttles charging output down to 6A per phase when domestic appliances create peak loads. This prevents the main service fuse from tripping without requiring expensive grid service upgrades.

All connected charging units support OCPP 1.6J and OCPP 2.0.1 over WebSockets wrapped with TLS 1.2/1.3 cryptographic layers. Hardware mainboards feature dedicated secure cryptoprocessors (secure elements) that store unique private keys and digital certificates. This safeguards mutual authentication, prevents man-in-the-middle attacks, and verifies cryptographic signatures before applying over-the-air (OTA) firmware updates.

For markets with protective multiple earthing (PME) or TN-C-S supply networks—such as the United Kingdom—our units include integrated open PEN fault detection circuitry complying with BS 7671 (Amendment 1). If the neutral conductor breaks or potential shifts beyond safe limits, our high-speed solid-state disconnect opens all active conductors, including live, neutral, and protective earth, within milliseconds. This eliminates the need to install costly external earth rods.

Custom brand silk-screening and customized packaging start at an MOQ of 50 units for AC residential wallboxes. Deeper customization—such as custom injection tooling, modified physical enclosures, or unique HMI screen layouts—begins at 200 units. Standard production lead times run between 20 to 30 calendar days following drawing sign-off and safety audit confirmation, supported by rapid shipping connections from Shanghai and Ningbo maritime hubs.