Engineered to handle higher charging currents and prevent electrical hazards, this innovative monitor offers the industry’s largest current transformer aperture, enhanced thermal management, and advanced EMI resilience.
Littelfuse, Inc. introduces the RCMP20 Residual Current Monitor (RCM) Series, designed to elevate safety and performance for Mode 2 and Mode 3 electric vehicle (EV) charging stations. This latest innovation sets a new benchmark in EV infrastructure by offering advanced ground fault detection and enhanced design flexibility in a compact form factor.
The Series features the industry’s largest current transformer (CT) aperture, supporting higher AC charging currents to meet the demands of today’s high-performance EV chargers. This cutting-edge solution also addresses critical thermal and electromagnetic management challenges, delivering superior reliability and efficiency in EV charging applications.
Key Features and Benefits
- Largest Current Transformer Aperture
- Enhanced Thermal Management
- High EMI Resilience Flexible Mounting Options
This solution supports high charging currents, crucial for modern EV chargers, ensuring optimal performance without compromising safety. Enhanced conductors with larger cross-sectional areas help reduce PCB temperature rise, enabling a more compact design with reliable, stable operation. It offers both vertical and horizontal installation options with 2 to 4 integrated conductors, providing engineers with flexibility to optimize charger layouts. The compact design, combined with PCB integration, simplifies installation by reducing the number of components while maintaining compliance with safety standards. Additionally, it minimizes the risk of false trips caused by electromagnetic interference, enhancing overall system reliability.
The Series provides comprehensive ground fault detection for both AC and DC currents, enhancing the safety of various EV charging infrastructures. For Mode 2 charging, which includes portable chargers and early-stage systems, the module monitors both AC and DC residual currents to prevent electrical hazards. In Mode 3 charging, used for more permanent and higher-powered setups, themodule identifies dangerous DC currents that standard Type A RCDs may miss, ensuring compliance with safety regulations and protecting users.
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