Description
H14F/H14FA Automobile Fuses – 10A-50A 750V 1000V High Speed DC Fuse
Overview of H14F/H14FA Automobile Fuses
Covers current specification 10A to 50A, dual voltage rating 750V DC and 1000V DC, with ultra-fast fusing characteristic, perfectly for automotive DC short-circuit protection.
Product Specifications
- Model: H14F , H14FA
- Current Range: 10A,15A,20A,25A,32A,40A,50A
- Rated Voltage: 750V DC, 1000V DC
- Performance: Fast-acting / High speed response
- Use type: Automobile & New energy vehicle dedicated fuse
- Standard: IEC 60269, UL 248 automotive fuse standard
Core Advantages
- 750V~1000V high voltage DC adaptation, match new energy high-voltage platform
- Fast breaking speed, ideal for sensitive automotive power electronic protection
- Strong anti-vibration performance, adapt vehicle driving complex environment
- Small size, easy wiring and internal circuit layout
- Full current range 10A-50A, meet different automotive power demands
Main Applications
- New energy electric vehicle high voltage DC circuit
- EV on-board power distribution system
- Electric vehicle charging system protection
- 1000V DC solar and energy storage equipment
- High voltage industrial DC power supply system
FAQ
A: Both are automobile high speed DC fuses, same voltage and current range, slight structural difference for different installation needs.
A: Yes, H14F/H14FA support 750V and 1000V DC formal application.
H14F/H14FA 10A–50A 750V/1000V DC fuse / automobile fuse / fuse manufacturer
1. Purpose and Use
This series of fuses are suitable for rated DC 750V–1000V (10A–50A) line protection. They offer comprehensive protection for instrument power lines and wiring harnesses. Features include strong current-limiting capability, high breaking capacity, fast short-circuit response, and resistance to temperature, mechanical, and chemical shock. Breaking capacity: AC 50KA, DC 20KA.
2. Normal Working Conditions
Ambient air temperature range: -40℃ to +125℃
3. Use Category
“gR” indicates a fast-acting fuse for full-range protection.
4. Structural Features
The fuse tube is made from high-temperature resistant, flame-retardant materials with high hardness. The fuse element is 99.99% pure silver, sealed in the tube filled with high-purity quartz sand and arc-extinguishing chemicals. Contact surfaces are silver-plated for better conductivity and reduced heat rise. Spot welding at both ends enhances safety and breaking performance.
5. Agreed Current and Time
Note: Custom agreed current/time can be discussed with the manufacturer.
| Test Current (A) | Fusing Time (s) | |
|---|---|---|
| Min | Max | |
| 1.1In | 14400 | – |
| 1.35In | 150 | 3600 |
| 1.5In | 20 | 1500 |
| 2In | 1 | 300 |
| 3In | 0.2 | 30 |
| 5In | 0.05 | 1 |
6. Main Parameters
| No. | Model Number | Rated Current (A) | Rated Voltage (VDC) | Breaking Capacity (DC) | Rated Voltage (VAC) | Breaking Capacity (AC) |
|---|---|---|---|---|---|---|
| 1 | H14F10 / H14FA10 | 10A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 2 | H14F15 / H14FA15 | 15A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 3 | H14F20 / H14FA20 | 20A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 4 | H14F25 / H14FA25 | 25A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 5 | H14F30 / H14FA30 | 30A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 6 | H14F35 / H14FA35 | 35A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 7 | H14F40 / H14FA40 | 40A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 8 | H14F45 / H14FA45 | 45A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
| 9 | H14F50 / H14FA50 | 50A | 750V / 1000V | 20kA | 500V / 700V | 50kA |
Note: Can be customized as per customer-specific requirements.