5H30L Fast‑Acting EV DC Fuse
5H30L fast‑acting DC fuse 150‑300A,500V DC,20kA breaking capacity.ISO8820 JASO D622 for EV battery & inverter protection.Request datasheet today.
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1：5H30L Series Fast‑Acting EV DC Fuse
The GFEV 5H30L is a full‑range fast‑acting DC fuse designed for high‑power electric vehicle on‑board systems. Rated up to 500V DC (450V DC), this bolt‑mount fuse covers current ratings from 150A to 300A with a high 20kA breaking capacity, delivering comprehensive short‑circuit and over‑current protection for vehicle battery packs, onboard wiring and inverters.
With excellent current‑limiting performance and ultra‑fast short‑circuit interrupt speed, the 5H30L series survives severe automotive conditions including mechanical vibration, thermal shock, current surge and chemical environmental loads. This automotive‑grade fuse complies with major global automotive fuse standards for EV system integration.
2：Key Features & Construction
- High‑temperature resistant ceramic fuse tube, excellent flame retardancy and mechanical hardness
- 99.99% pure silver variable‑cross‑section melt element sealed inside tube
- Chemically treated high‑purity quartz sand as arc‑extinguishing medium for reliable arc quenching
- Silver‑plated contact surfaces, lower temperature rise and power consumption
- Spot‑welded connection between melt and contact terminals for high short‑circuit fault breaking reliability
- Wide operating ambient temperature range: normal ‑5℃ ~ +40℃; allowable ‑40℃ ~ +125℃
- Bolt‑on mounting design for high‑current EV power circuit installation
3：Electrical Parameters
| Model | Rated Current(A) | Rated DC Voltage | Max Voltage Drop(mV) | Breaking Capacity(kA) |
|---|---|---|---|---|
| 5H30L150 | 150 | 500V/450V | 54 | 20 |
| 5H30L175 | 175 | 500V/450V | 56 | 20 |
| 5H30L200 | 200 | 500V/450V | 45 | 20 |
| 5H30L225 | 225 | 500V/450V | 45 | 20 |
| 5H30L250 | 250 | 500V/450V | 45 | 20 |
| 5H30L300 | 300 | 500V/450V | 46 | 20 |
Agreed Current‑Time Characteristics (In≥60A, test @25℃ ambient temperature)
| Test Current | Min Fusing Time | Max Fusing Time |
|---|---|---|
| 1.1×In | ≥14400s | ‑ |
| 1.35×In | 150s | 3600s |
| 1.5×In | 20s | 1500s |
| 2×In | 1s | 300s |
| 3×In | 0.2s | 30s |
| 5×In | 0.05s | 1s |
Note: Custom fusing time requirements are negotiable. Actual performance will vary with ambient environment and system layout.
4：Application Scenarios
5H30L fast‑acting dc fuses are widely used for over‑current & short‑circuit protection:
- EV / HEV on‑board battery main circuit protection
- Vehicle power inverter protection
- On‑board high‑voltage wiring harness protection
- Commercial electric vehicle high‑power DC circuits
- Energy storage DC power cabinet matching automotive‑grade protection requirement
5：Compliance & Standards
- ISO 8820, ISO 8820‑8
- JASO D622
- GB/T 31465, GB/T 31465.6
- UL248‑20
6：Frequently Asked Questions
1: What is the breaking capacity of 5H30L series fuse?
Rated breaking capacity is 20kA under DC rated voltage condition.
2: What temperature can this ev fuse withstand?
Normal working ambient:‑5℃~+40℃; allowable extreme operating temperature range:‑40℃ ~ +125℃.
3: Can you customize special fusing characteristics for 5H30L?
Yes, custom agreed current‑time parameters can be discussed with our engineering team.
4: What mounting method for 5H30L fuse?
Bolt‑on installation, suitable for high‑current busbar connection inside battery box and power cabinet.
H2：Download Datasheet
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