2H38L fast‑dc‑fuse | 200A‑500A 250V‑300V DC gR Fuse
2H38L fast‑dc‑fuse is gR full‑range fast automotive DC fuse for charger,on‑board battery and inverter. Rated 200‑500A 250‑300V DC with 10kA interrupting capacity,compliant with ISO8820‑8,JASO D622,UL248‑20,custom specs available.
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2H38L fast‑dc‑fuse is gR full‑range fast‑acting automotive DC fuse for heavy‑duty new‑energy vehicle DC‑circuit protection. This series covers 200A‑500A rated current at 250V / 300V DC with 10kA 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 contacts reduce temperature rise and power consumption. It provides comprehensive protection for charger,power supply,on‑board battery and inverter. Custom time‑current characteristics can be negotiated for special‑project demands.
| Series Model | 2H38L Fast‑DC‑Fuse Automotive DC Fuse |
| Utilization Category | gR Full‑range fast‑acting fuse |
| Rated DC Voltage | 250V / 300V DC |
| Rated Current Range | 200A‑500A |
| Interrupting Breaking Capacity | 10 kA DC |
| Structure & Material | High‑temp ceramic housing;99.99% pure‑silver variable‑section melt;quartz‑sand arc‑quenching medium;silver‑plated contact |
| Compliance Standards | GB/T31465.6, ISO8820‑8, JASO D622, UL248‑20 |
| Normal Operating Temperature | ‑5 °C ~ +40 °C |
| Allowable Extreme Temperature | ‑40 °C ~ +125 °C |
| Typical Applications | On‑board battery,vehicle‑mounted circuit,charger,power supply,inverter heavy‑duty DC‑circuit protection |
| Customization | Custom time‑current performance available upon negotiation |
| Part Number | Rated Current(A) | Rated DC Voltage(V) | Max Voltage Drop(mV) | Breaking Capacity(kA) |
|---|---|---|---|---|
| 2H38L200 | 200 | 250/300 | 180 | 10 |
| 2H38L250 | 250 | 250/300 | 180 | 10 |
| 2H38L300 | 300 | 250/300 | 160 | 10 |
| 2H38L350 | 350 | 250/300 | 160 | 10 |
| 2H38L400 | 400 | 250/300 | 160 | 10 |
| 2H38L450 | 450 | 250/300 | 150 | 10 |
| 2H38L500 | 500 | 250/300 | 150 | 10 |
Frequently Asked Questions
Q: What protection category is 2H38L fast‑dc‑fuse?
A: 2H38L is gR full‑range fast‑acting fuse, delivering both overload and short‑circuit protection for heavy‑duty automotive DC circuits.
Q: What is breaking‑capacity of 2H38L DC fuse?
A: Rated DC breaking capacity reaches 10kA for short‑circuit fault interruption in vehicle DC‑systems.
Q: What are main applications for 2H38L fuse?
A: Applied for on‑board battery,vehicle‑mounted circuit,charger,power‑supply and inverter heavy‑duty DC‑circuit comprehensive protection.
Q: What temperature range can 2H38L endure?
A: Normal ambient ‑5 °C ~ +40 °C; allowable extreme operating temperature ‑40 °C ~ +125 °C for harsh automotive environment.
Q: Can we customize time‑current curve for 2H38L?
A: Yes,custom‑made time‑current characteristics can be negotiated for special‑purpose project requirements.
