Description
GFEVT2000 High‑Speed 2000V DC Fuse is an ultra‑fast aR semiconductor fuse designed for extreme high‑voltage DC new energy systems. Rated 2000V DC and 250A–800A, it provides microsecond‑level short‑circuit protection for large‑scale energy storage, high‑voltage solar, electric vehicles and industrial DC power systems. Its high‑breaking capacity and low I²t design make it the core protection component for next‑generation high‑voltage new energy infrastructure.
Core Specifications
- Model: GFEVT2000
- Current Rating: 250A, 315A, 400A, 500A, 630A, 800A
- Voltage Rating: 2000V DC
- Protection Class: aR (ultra‑fast semiconductor protection)
- Breaking Capacity: 50kA (DC)
- Body Style: High‑voltage insulated cylindrical/rectangular
- Terminals: Bolt‑down (M12), high‑conductivity copper, tin‑plated
- Arc Extinguishing: High‑purity silica sand + multi‑chamber arc chute, forced DC arc quenching
- Certifications: UL 248-1, IEC 60269-4, RoHS compliant
Key Features
✅ Industry‑Leading 2000V DC Rating
Engineered for 2000V DC ultra‑high‑voltage systems, supporting the latest new energy high‑voltage platform design.
✅ Ultra‑Fast aR Semiconductor Protection
Cuts short‑circuit current in ≤15µs; ultra‑low I²t protects IGBT, MOSFET and power semiconductors from burnout.
✅ 250A–800A High‑Current Coverage
Covers 250A–800A continuous current, meeting the needs of large‑capacity energy storage and high‑power DC equipment.
✅ Superior DC Arc Extinguishing
Dual‑structure arc extinguishing system (silica sand + arc chute) safely quenches sustained DC arcs without re‑ignition, critical for 2000V DC systems.
✅ High Dielectric Strength
Reinforced high‑voltage insulation housing, resistant to partial discharge and electrical breakdown under 2000V DC long‑term operation.
✅ Low Temperature Rise
Optimized melt design and large‑area copper terminals reduce heat buildup under full load, ensuring long‑term stable operation.
✅ Vibration & Environmental Resistance
Industrial‑grade reinforced housing, stable performance in high‑vibration and temperature‑fluctuation new energy environments.
Common Applications
- Large‑Scale Energy Storage (BESS): 2000V DC battery systems, PCS, high‑voltage combiner boxes
- High‑Voltage Solar PV: 2000V DC solar farms, central inverters, large‑scale PV combiner stations
- Electric Vehicles (EV/HEV): 2000V DC high‑voltage platforms, heavy‑duty commercial vehicles, electric buses
- Industrial DC Power Systems: High‑voltage rectifiers, DC motor drives, mining machinery power modules
- Hydrogen Energy & Microgrid: 2000V DC hydrogen production equipment, microgrid energy storage systems
Installation & Torque
- Mounting: Secure via M12 bolt terminals (torque: 15–18 Nm).
- Cable Connection: Use 400–630mm² DC cables; ensure clean, tight contact to avoid overheating.
- Orientation: Install vertically or horizontally; strictly avoid covering arc vent areas.
- Insulation Protection: Add high‑voltage insulation sleeves to terminals to prevent creepage and flashover.
FAQ
What is GFEVT2000 used for?
It’s a 2000V DC, 250A–800A ultra‑fast aR fuse for large‑scale energy storage, high‑voltage solar and new energy high‑voltage DC system protection.
Is it suitable for 2000V DC energy storage systems?
Perfect match—2000V DC rating, aR ultra‑fast protection, 250A–800A range for BESS high‑voltage battery systems.
What’s the breaking capacity of GFEVT2000?
50kA DC, capable of safely cutting off extreme short‑circuit currents in high‑voltage DC systems.
Can it protect power semiconductors?
Yes, ultra‑low I²t + ≤15µs breaking speed effectively protects IGBT/MOSFET in high‑voltage DC converters.
GFEVT2000 high-speed fuse 250A-800A 2000Vdc/New energy fuse manufacturer
Dimensions (mm)
Bolted xxxB-74E Dimensions
Din xxxU-74E Dimensions
Standards/Approvals
- Refer to UL248.13 or IEC60269.4
- RoHS Compliant
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 environment temperature tolerance,
Excellent resistance to mechanical vibration and impact resistance.
Fuse Ratings
| Part No. | Fuse Amps | Average @100KA/2000Vdc | Power Loss (W) 100% | Weight Pcs /g | Pcs / Box | Standard recommended bolts | Installation torque | ||
|---|---|---|---|---|---|---|---|---|---|
| A²s Melting | A²t Clearing | 重量g | 整箱数量Pcs | 推荐使用螺栓 | 推荐螺栓扭矩 | ||||
| GFEVT2000-250B-74E | 250A | 27,430 | 115,560 | 126 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-315B-74E | 315A | 52,961 | 222,560 | 150 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-350B-74E | 350A | 71,213 | 299,600 | 163 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-400B-74E | 400A | 103,812 | 436,560 | 180 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-450B-74E | 450A | 149,810 | 630,230 | 195 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-500B-74E | 500A | 203,615 | 856,000 | 212 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-550B-74E | 550A | 275,355 | 1,155,600 | 225 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-630B-74E | 630A | 414,615 | 1,744,100 | 250 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-700B-74E | 700A | 569,700 | 2,396,800 | 272 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-800B-74E | 800A | 847,165 | 3,563,100 | 305 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| Part No. | Fuse Amps | Average @100KA / 2000Vdc | Power Loss (W) 100% | Weight Pcs /g | Pcs / Box | Standard recommended bolts | Installation torque | ||
|---|---|---|---|---|---|---|---|---|---|
| A²s Melting | A²t Clearing | 重量g | 整箱数量Pcs | 推荐使用螺栓 | 推荐螺栓扭矩 | ||||
| GFEVT2000-250U-74E | 250A | 27,430 | 115,560 | 132 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-315U-74E | 315A | 52,961 | 222,560 | 156 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-350U-74E | 350A | 71,213 | 299,600 | 170 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-400U-74E | 400A | 103,812 | 436,560 | 188 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-450U-74E | 450A | 149,810 | 630,230 | 204 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-500U-74E | 500A | 203,615 | 856,000 | 221 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-550U-74E | 550A | 275,355 | 1,155,600 | 235 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-630U-74E | 630A | 414,615 | 1,744,100 | 261 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-700U-74E | 700A | 569,700 | 2,396,800 | 292 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |
| GFEVT2000-800U-74E | 800A | 847,165 | 3,563,100 | 318 | 2600±10% | 8 Pcs | M10 | 23.0±1.0N.m | |