When Safety Meets Precision
In the buzzing world of electric vehicle charging stations, a Zhejiang-based manufacturer faced recurring shutdowns due to DC arc faults. Their solution came in a 78mm blue ceramic package – the Zhongrong EV325-4GL. Within 3 months of deployment, system downtime dropped by 63%, proving that sometimes the smallest components make the biggest impact.
Technical Superiority in Compact Form
The EV325-4GL’s 50kA breaking capacity at 750VDC sets new benchmarks, outperforming conventional solutions by 40% in fault clearance speed. Its patented arc-extinguishing granular filler ensures complete circuit interruption within 2ms – faster than the blink of an eye (human eye blinks take 100-400ms).
Real-World Validation
- Shanghai Energy’s 2MW/4MWh storage system: Zero protective failures in 18 months
- BYD’s portable chargers: 22% weight reduction through compact design
- TÜV Rheinland certified: 5,000+ operational cycles at -40°C to 125°C
The Science Behind Reliability
Through accelerated life testing:
1. 1,000 thermal shock cycles: ≤3% resistance variation
2. 150% overload test: Consistent tripping within 120s
3. Salt spray test: No corrosion after 96hrs (ASTM B117 standard)
As EV fast-charging moves toward 800V architectures, the EV325-4GL’s 1.5× safety margin (rated 750V vs. actual 500V systems) future-proofs installations. Its UL 248-19 listing opens doors to North American markets, where 83% of DC charger manufacturers now require dual certifications.
