Description
GFEVT1000-A-74E High Speed Fuse | 315A-1400A 1000V DC
1. Product Overview
The GFEVT1000-A-74E is an aR-type high-speed semiconductor fuse designed for 1000V DC high-power circuits, rated 315A to 1400A with a 50kA breaking capacity. It provides ultra-fast short-circuit protection for electric vehicles, photovoltaic systems, energy storage, and industrial DC power supplies.
2. Core Technical Parameters
- Model: GFEVT1000-A-74E
- Rated Current: 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1400A
- Rated Voltage: 1000V DC
- Breaking Capacity: 50kA (DC)
- Fuse Type: aR (semiconductor protection, fast-acting)
- Standards: UL 248.1/248.13, IEC 60269.1/60269.4, RoHS, REACH
- Operating Temp: -35°C to +85°C
- Body Size: Square, heavy-duty bolt-down design
3. Key Features
- Ultra-fast response: Cuts off fault current in ≤1ms at 10× rated current; arc-free interruption for semiconductor devices.
- Low power loss: Optimized internal structure reduces heat generation, improving system efficiency.
- High durability: Vibration and impact resistant; suitable for harsh environments like EVs and solar farms.
- High DC performance: Stable arc extinction at 1000V DC; no re-ignition under heavy load.
4. Applications
- Electric vehicles (EV/HEV): Main battery, motor controller, OBC, DC-DC converter.
- Photovoltaic (PV): Inverter DC side, combiner box, 1000V solar systems.
- Energy storage (ESS): Battery pack, BMS, high-power DC distribution.
- Industrial DC: Rectifier, UPS, welding equipment, heavy machinery.
5. Installation & Selection
- Mounting: Bolt-down (two-hole), use high-torque copper busbars (≥50mm² for 1000A+).
- Selection rule: Rated current ≥ 1.25× continuous load current; voltage ≥ system DC voltage.
- I²t coordination: Match upstream/downstream fuses to avoid misoperation; arc-free at ≥4× rated current (aR characteristic).
6. Why Choose GFEVT1000-A-74E
- ESSFUSE quality: Strict ISO/UL testing; stable batch performance.
- Cost-effective: Competitive pricing vs. European/Japanese brands; fast delivery.
GFEVT1000-A-74E High Speed Fuse 315A-1400A 1000V dc fuse
Features & Benefits
- Higher voltage rating provides overall system efficiency using smaller, more economical conductors while meeting the needs of higher voltage.
- Up to ten times faster opening under high fault current conditions helps assure reliable protection of circuits and components.
- Greater ampacity within sizing guidelines.
- Excellent power of resisting voltaic impingement and environmental temperature tolerance.
- Excellent resistance to mechanical vibration and impact resistance.
Dimensions (mm)
Description
- Design For DC Applications
- Excellent Dc Performance
- Superior cycling capability
- Low Watt Losses
Standards/Approvals
- Refer to UL 248.1 / UL 248.13
- IEC 60269.1 / IEC 60269.4
- Reach declaration available upon request
- RoHS Compliant
Fuse Ratings
| Connect | Part No. | Fuse Amps | Size | Average @50KA/1000Vdc | Power Loss (W) | Approvals | ||
| A²s Melting | A²t Clearing | 100% | ROHS | REACH | ||||
| Flush-end contact | GFEVT1000-315A-74E | 315A | 3# | 8550 | 48500 | 120 | ● | ● |
| GFEVT1000-350A-74E | 350A | 3# | 12150 | 68640 | 125 | ● | ● | |
| GFEVT1000-400A-74E | 400A | 3# | 17550 | 99150 | 133 | ● | ● | |
| GFEVT1000-450A-74E | 450A | 3# | 27900 | 157600 | 145 | ● | ● | |
| GFEVT1000-500A-74E | 500A | 3# | 35100 | 198315 | 155 | ● | ● | |
| GFEVT1000-550A-74E | 550A | 3# | 49500 | 279675 | 163 | ● | ● | |
| GFEVT1000-630A-74E | 630A | 3# | 75150 | 424600 | 172 | ● | ● | |
| GFEVT1000-700A-74E | 700A | 3# | 103500 | 625700 | 185 | ● | ● | |
| GFEVT1000-800A-74E | 800A | 3# | 185500 | 1001700 | 195 | ● | ● | |
| GFEVT1000-900A-74E | 900A | 3# | 274500 | 1454850 | 203 | ○ | ○ | |
| GFEVT1000-1000A-74E | 1000A | 3# | 405000 | 2126500 | 210 | ○ | ○ | |
| GFEVT1000-1100A-74E | 1100A | 3# | 517500 | 2696500 | 225 | ○ | ○ | |
| * GFEVT1000-1250A-74E | * 1250A | 3# | 729000 | 3717900 | 240 | ○ | ○ | |
| * GFEVT1000-1400A-74E | * 1400A | 3# | 1125000 | 5512500 | 265 | ○ | ○ | |