Littelfuse has unveiled the RCMP20 Residual Current Monitor Series for Mode 2 and Mode 3 EV charging stations.

The RCMP20 Series offers the largest current transformer aperture available, supporting higher AC charging currents, which is critical for modern EV chargers that demand high-performance capabilities. It also offers reliable ground-fault detection, improving charger performance and safety. 

Integrated conductors with higher cross-sectional areas provide better thermal management, reducing printed circuit-board (PCB) temperature rise and allowing for a more compact design without compromising performance.

The modules are designed to resist electromagnetic interference (EMI), minimising false circuit trips and improving charging station reliability.

With vertical and horizontal mounting options, and two to four integrated conductors, the RCMP20 Series allows design engineers to optimise space utilisation and adapt to various charger configurations.

The reduced footprint within the EV chargers allows for smaller, more compact designs, while still meeting safety code requirements. The integrated PCB with optional conductors streamlines installation, reduces component count and simplifies assembly.