10H30L Fast‑acting DC Fuse 100‑200A 1000VDC 20kA
10H30L gR fast‑acting fuse DC1000V,100‑200A,20kA breaking capacity. ISO8820 JASO D622 GB/T31465 for EV charging pile, onboard battery & inverter. Request datasheet & quotation.
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10H30L Series Fast‑acting DC Fuse (gR Class) 100A‑200A, 1000VDC 20kA
10H30L series is full‑range gR bolt‑on fast‑acting DC fuse designed for high‑power DC circuits up to DC 1000V. Rated current ranges from 100A‑200A with rated breaking capacity of 20kA. It delivers reliable overload and short‑circuit comprehensive protection for EV chargers, charging piles, vehicle‑mounted battery packs, onboard high‑voltage circuit systems and power inverters.
Manufactured by Dongguan GongFu Electronics (GFEFUSE), this ceramic‑body DC fuse features powerful current‑limiting performance and rapid short‑circuit breaking speed. It can resist thermal shock, mechanical vibration shock, current impulse and chemical load for demanding new‑energy equipment operating environments.
Key Features & Construction
- High‑temperature resistant ceramic melting tube: Outstanding flame‑retardant property and high mechanical hardness.
- 99.99% pure silver variable‑section melt: Hermetically sealed inside fuse tube to ensure stable fusing performance.
- Chemically‑treated high‑purity quartz‑sand arc‑extinguishing medium: Excellent DC arc quenching performance.
- Silver‑plated contact surfaces: Reduce temperature rise and power consumption for stable electrical contact performance.
- Spot‑welded melt‑to‑contact connection: Firm joint greatly enhances safety and reliability during short‑circuit fault interruption.
- Utilization category: gR full‑range fast fuse.
Main Technical Specifications
| Model | Rated Current(A) | DC Rated Voltage(V) | Max Voltage Drop(mV) | Breaking Capacity(KA) |
|---|---|---|---|---|
| 10H30L100 | 100 | 1000V | 81 | 20 |
| 10H30L125 | 125 | 1000V | 70 | 20 |
| 10H30L150 | 150 | 1000V | 59 | 20 |
| 10H30L175 | 175 | 1000V | 54 | 20 |
| 10H30L200 | 200 | 1000V | 51 | 20 |
Rated Current & Fusing Time Characteristics
Test reference condition: 25℃ constant ambient temperature. Custom‑tailored agreed‑current and fusing‑time characteristics are negotiable. Actual fuse performance will change according to real‑world operating environment and system design requirements.
| Test Current | Minimum Fusing Time(s) | Maximum Fusing Time(s) |
|---|---|---|
| 1.1In | 14400 | ‑ |
| 1.35In | 150 | 3600 |
| 1.5In | 20 | 1500 |
| 2In | 1 | 300 |
| 3In | 0.2 | 30 |
| 5In | 0.05 | 1 |
Working Environmental Conditions
- Normal ambient temperature:‑5℃ ~ +40℃
- Allowable extreme operating temperature:‑40℃ ~ +125℃
- Relative humidity:5% ~ 95%
- Atmospheric pressure:61.6 kPa ~ 106.2 kPa
Mechanical Dimensions(Bolt‑on Installation)
- Outer diameter:Φ30.5±0.5 mm
- Terminal mounting hole:20±0.2 mm;hole‑center distance:90±2 mm
- Overall total length:110±1 mm
- Terminal thickness:4±0.2 mm
Compliance & Standards
10H30L series complies with international and Chinese automotive‑grade fuse standards:
- ISO 8820
- JASO D622
- GB/T 31465
Frequently Asked Questions
What is gR utilization category for 10H30L DC fuse?
gR is full‑range fast‑acting fuse category. It provides both overload protection and short‑circuit protection for high‑power DC circuits and power‑semiconductor related equipment.
What is full environmental operating range of 10H30L fuse?
Normal ambient‑5℃~40℃; allowable extreme temperature‑40℃~+125℃; relative humidity 5%‑95%; atmospheric pressure 61.6‑106.2kPa. High ambient temperature will affect practical fusing performance.
Can I get custom fusing characteristics for my project?
Yes, custom agreed‑current & fusing‑time requirements can be discussed with our engineering team.
What is breaking‑capacity rating of EssFuse 10H30L series?
Rated breaking capacity reaches 20 kA @ DC1000V.

