5H38L ev‑hev high‑voltage dc automotive fuse | 300A‑500A 450V‑500V DC gR Fuse
5H38L ev‑hev high‑voltage dc automotive fuse is gR full‑range EV HEV dc fuse for on‑board battery and inverter. Rated 300‑500A 450‑500V DC with 20kA DC interrupting capacity,ISO8820‑8 JASO D622 UL248‑20 compliant,custom specs available.
5H38L ev‑hev high‑voltage dc automotive fuse is gR full‑range fast‑acting high‑voltage DC fuse for EV and HEV new‑energy‑vehicle on‑board battery, vehicle wiring system and inverter comprehensive over‑current & short‑circuit protection. This series covers rated current 300A‑500A at 450V / 500V DC with 20kA DC breaking capacity. It adopts high‑temperature‑resistant ceramic tube,99.99% pure‑silver variable‑cross‑section melt and high‑purity quartz‑sand arc‑extinguishing medium. Silver‑plated contact surfaces reduce temperature rise and power consumption. The unit withstands thermal shock,mechanical vibration shock,current impulse and chemical load. Custom time‑current performance characteristics are negotiable for special‑project demands.
| Series Model | 5H38L EV‑HEV High‑Voltage DC Automotive Fuse |
| Fuse Category | gR Full‑range fast‑acting fuse |
| Rated DC Voltage | 450V / 500V DC |
| Rated Current Range | 300A‑500A |
| Interrupting Breaking Capacity DC | 20 kA DC |
| Material & Structure | High‑temp ceramic housing;99.99% pure‑silver variable‑section melt;quartz‑sand arc‑extinguishing medium;silver‑plated contact surface |
| Compliance Standards | ISO8820‑8, JASO D622, GB/T31465.6, UL248‑20 |
| Normal Operating Temp | ‑5 °C ~ +40 °C |
| Allowable Extreme Temp | ‑40 °C ~ +125 °C |
| Typical Applications | EV / HEV on‑board battery,vehicle‑mounted circuit system,inverter high‑voltage DC‑circuit comprehensive protection |
| Customization Support | Custom agreed time‑current characteristics available upon negotiation |
| Part Number | Rated Current(A) | Rated DC Voltage(V) | Max Voltage Drop(mV) | DC Breaking Capacity(kA) |
|---|---|---|---|---|
| 5H38L300 | 300 | 450/500 | 45 | 20 |
| 5H38L350 | 350 | 450/500 | 42 | 20 |
| 5H38L400 | 400 | 450/500 | 42 | 20 |
| 5H38L450 | 450 | 450/500 | 42 | 20 |
| 5H38L500 | 500 | 450/500 | 40 | 20 |
Frequently Asked Questions
Q: What fuse category is 5H38L ev‑hev high‑voltage dc automotive fuse?
A: 5H38L is gR full‑range fast‑acting fuse, provides both overload and short‑circuit high‑voltage DC protection for EV and HEV vehicles.
Q: What is DC breaking‑capacity for 5H38L series?
A: Rated DC interrupting capacity reaches 20kA for short‑circuit fault interruption for EV/HEV battery and inverter high‑voltage DC‑systems.
Q: Where are 5H38L fuses applied?
A: Designed for EV & HEV on‑board battery, vehicle‑mounted wiring circuit and inverter comprehensive high‑voltage DC‑circuit protection.
Q: What temperature range can 5H38L withstand?
A: Normal ambient‑5 °C ~ +40 °C; allowable extreme operating temperature‑40 °C ~ +125 °C for harsh EV‑HEV automotive environment.
Q: Can we customize time‑current curve of 5H38L fuse?
A: Yes,custom‑made agreed time‑current performance can be negotiated for special‑purpose project requirements.
