When Every Millisecond Counts
In the world of electric vehicle charging stations, a faulty connection during 150kW fast charging could mean disaster. This is where Zhongrong’s RS308-HB 5N steps in, quietly monitoring 750V circuits with its 315A rating. Last year, a Shenzhen charging network operator reported 37% fewer maintenance incidents after switching to these fuses.
Case Study: Extreme Weather Warrior
During the 2023 Inner Mongolia grid stability tests, RS308-HB units survived 72 consecutive hours of -40°C to +85°C thermal cycling while maintaining <2% resistance variance. Field data showed 0 unexpected trips across 15,000 operational hours - a record that made engineers double-check their instruments.
Key Performance Metrics:
• Breaking Capacity: 50kA @ 750VDC
• I²t Value: 98,000 A²s
• Temperature Rise: ≤55K at 100% rated current
The Charging Station Savior
Shanghai’s largest EV charging hub credits these fuses for reducing DC arc incidents by 63% since installation. ‘They react within 3ms – faster than our old protection systems could even detect a fault,’ remarks Chief Engineer Wang Lei. The secret? A proprietary silver-alloy element that maintains stable characteristics even after 100,000 operational cycles.
