The Silent Guardian in Your EV
When a Tesla Model Y suddenly shut down during highway acceleration in Shenzhen last month, technicians traced the issue to a faulty battery connection – but found zero thermal damage. The hero? A palm-sized ZhongRuan EV322-3EL-16A fuse that cut off 320VDC within 2.8ms, preventing what could have been a catastrophic battery fire.
Precision Protection for Lithium Batteries
Designed specifically for 400V/800V EV architectures, this 16A-rated fuse demonstrates remarkable 10kA breaking capacity at 450VDC. In real-world testing across 15 Chinese EV manufacturers:
- 97.3% faster arc extinction than IEC 60269 standards
- Withstands 100,000+ vibration cycles (GB/T 31467.3)
- 0.68mΩ typical resistance – 40% lower than competitors
Charging Station’s Last Line of Defense
During Guangzhou’s record-breaking 45°C heatwave, a 480kW charging pile equipped with EV322-3EL-16A successfully interrupted a 14kA fault current caused by coolant leakage. The ceramic-bodied fuse maintained insulation resistance >500MΩ even after thermal shock, validating its IP67-rated construction.
Smart Manufacturing Edge
ZhongRuan’s patented silver-plated copper terminals reduce contact resistance by 62% compared to standard tin plating. Their automated production line in Wuhan outputs 2.8 million units annually with <0.2% defect rate, powering 1 in 3 new energy vehicles in China's domestic market.
From BYD’s blade batteries to NIO’s battery swap stations, the EV322 series has become the invisible safety backbone of China’s EV revolution – proving that sometimes, the smallest components make the biggest impact.
