DC-Immune Current Transformer Breaks Barriers for Charging Infrastructure
DCT105W-B3 Ring-Core CT Launches, Boosting DC Measurement Accuracy by 300%
Debuting on June 17, the DCT105W-B3 120A current transformer redefines DC monitoring with a nanocrystalline ring core and multi-layer shielding. It maintains 0.2% accuracy under 1,000A/m DC interference, solving electromagnetic noise issues in ultra-fast EV chargers. A Guangdong-based charger OEM reported 4ms overcurrent response times (vs. 15ms) and 90% fewer false alarms on 800V platforms.
The black ring structure’s optimized heat dissipation limits temperature rise to 25K at 120A continuous load, extending lifespan to 100,000 hours. CATL has deployed 2,000 units in its solar-storage-charging projects.
Market Outlook: With EU’s CEI 6-16 mandating DC immunity, this product targets a $5B global market, attracting inquiries from ABB and Schneider Electric.
Core Google Keywords: Current Transformer, DC Immunity, EV Charging Pile, Ring Core Design, Smart Grid
