WCED 40A 2-Pole 30mA Type A RCBO (Type A RCCB, C Curve MCB)

An RCBO is a combined RCCB and MCB in one unit, providing a residual current circuit breaker with integrated overcurrent protection — ideal for individual circuit protection on EV charging, lighting, and general power circuits. Key Features 2 pole (single phase applications) Rating: 6A / 16A / 20A / 32A / 40A — select below RCCB Trip Sensitivity: 30mA RCCB Type A MCB Characteristic: B or C curve — select below Test button IEC/EN 61009-1 RoHS compliant CE approved Choosing B Curve vs C Curve Curve Trip Threshold Best For B Curve 3–5× rated current Resistive/low-inrush loads — lighting circuits, general sockets, standard domestic circuits C Curve 5–10× rated current Higher-inrush loads — motors, transformers, and EV chargers, where a B curve device may nuisance-trip on startup Not sure which you need? Most domestic EV charger installations specify C curve — check your charger's installation manual or consult your electrical contractor to confirm. Available Ratings Rating B Curve SKU C Curve SKU 6A WER06B-030 WER06C-030 16A WER16B-030 WER16C-030 20A WER20B-030 WER20C-030 32A WER32B-030 WER32C-030 40A WER40B-030 WER40C-030 Dimensions 36mm x 77mm x 85mm DIN 2 module width Safe use: A suitably rated RCBO/RCD device may also be required in the final circuit to provide the correct level of protection whilst avoiding unnecessary tripping. Always consult wiring regulations or an electrical contractor to be sure. Users of this product assume responsibility for the correct design and installation of their EVSE. Consult the EcoHarmony website or an electrical contractor if needed. EcoHarmony will not be held liable for injury to living creatures nor damage to property arising from incorrect use of this product.