H14FE high‑speed fuse | 40A‑60A 450V‑500V DC EV gR Fuse
H14FE high‑speed fuse,gR new‑energy vehicle fast‑acting fuse 40‑60A 450‑500V DC,20kA DC breaking for on‑board,charger & wiring harness,ISO8820 JASO D622 compliant,customizable.
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H14FE high-speed fuse is a gR new energy vehicle fuse rated 40A-60A, 450V-500V DC.
on‑board system,charger and wiring‑harness comprehensive over‑current & short‑circuit protection. This series covers rated current 40A‑60A at 450V / 500V DC with 20kA DC breaking capacity. Constructed with special high‑temperature‑resistant housing,99.99% pure‑silver melt and high‑purity quartz‑sand arc‑extinguishing medium. Silver‑plated contact surfaces reduce temperature rise and power consumption. It withstands thermal shock,mechanical shock,current impulse and chemical load. Custom time‑current performance characteristics are negotiable for special‑project demands.
| Series Model | H14FE High‑Speed New‑Energy‑Vehicle Fuse |
| Fuse Category | gR Full‑range fast‑acting fuse |
| Rated DC Voltage | 450V / 500V DC |
| Rated Current Range | 40A‑60A |
| Interrupting Breaking Capacity DC | 20 kA DC |
| Material & Structure | High‑temp resistant 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 |
| Operating Ambient Temperature | ‑40 °C ~ +125 °C |
| Typical Applications | Instrument power supply,on‑board system,charger,wiring‑harness new‑energy‑vehicle DC‑circuit comprehensive protection |
| Customization Support | Custom agreed time‑current characteristics available upon negotiation |
| Part Number | Rated Current(A) | Rated DC Voltage(V) | DC Breaking Capacity(kA) |
|---|---|---|---|
| H14FE40 | 40 | 450/500 | 20 |
| H14FE45 | 45 | 450/500 | 20 |
| H14FE50 | 50 | 450/500 | 20 |
| H14FE60 | 60 | 450/500 | 20 |
Frequently Asked Questions
Q: What protection category is H14FE high‑speed fuse?
A: H14FE is gR full‑range fast‑acting fuse, provides both overload and short‑circuit protection for new‑energy‑vehicle DC circuits.
Q: What is DC breaking‑capacity of H14FE series?
A: Rated DC interrupting capacity reaches 20kA for short‑circuit fault interruption in EV DC‑systems.
Q: What are main applications for H14FE fuse?
A: It applies for instrument power supply,on‑board system,charger and wiring‑harness comprehensive DC‑circuit protection of new‑energy vehicles.
Q: What temperature can H14FE withstand?
A: Operating ambient temperature range:‑40 °C ~ +125 °C,adapt for harsh new‑energy‑vehicle environmental conditions.
Q: Can H14FE time‑current curve be customized?
A: Yes,custom‑made agreed time‑current performance can be negotiated for special‑purpose project requirements.
