Description
GFEVT500-A-43E Square High Speed Fuse – 50A-630A 500V DC Semiconductor Fuse
The GFEVT500-A-43E is a premium square-body high-speed semiconductor fuse designed for 500V DC systems, covering a wide current range from 50A to 630A. As an aR class fast-acting fuse, it delivers ultra-fast fault protection for power semiconductors, electric vehicles (EV), energy storage systems (ESS), and industrial DC power applications.
Key Specifications of GFEVT500-A-43E
- Model: GFEVT500-A-43E
- Voltage Rating: 500V DC
- Current Range: 50A – 630A
- Breaking Capacity: 50kA @ 500V DC (L/R ≤ 2ms)
- Protection Class: aR (semiconductor protection)
- Body Style: Square ceramic housing
- Standards: UL 248.1/13, IEC 60269.1/4, RoHS compliant
Core Features & Advantages
1. Ultra-Fast Fault Response
Up to 10x faster opening under high fault currents compared to standard fuses, critical for protecting IGBTs, MOSFETs, diodes, and other sensitive semiconductors from damage.
2. Superior DC Performance
Optimized for 500V DC circuits with low arc voltage and minimal energy let-through (I²t), ensuring reliable performance in EV, battery storage, and renewable energy systems.
3. High Breaking Capacity
Handles short-circuit currents up to 50kA with excellent current-limiting capability, providing robust protection for high-power DC systems.
4. Durable & Reliable Construction
- Square ceramic body for enhanced mechanical stability and thermal resistance
- Tin-plated copper terminals for low contact resistance and corrosion protection
- Excellent vibration and shock resistance for harsh automotive and industrial environments
5. Low Power Loss & High Cycling Capability
Low watt loss design improves system efficiency; superior cycling capability extends service life in frequent on/off applications.
Typical Applications
- Electric Vehicles (EV/HEV): Battery packs, motor controllers, inverters, charging systems
- Energy Storage Systems (ESS): Lithium-ion battery banks, UPS, power conversion systems
- Industrial Power: Semiconductor drives, DC power supplies, wind/solar inverters
- Rail Transit & Heavy Equipment: DC traction systems, control circuits
- Telecom & Data Centers: High-power DC distribution protection
Why Choose GFEVT500-A-43E?
- aR class semiconductor protection for critical power components
- 500V DC rating ideal for modern EV and energy storage designs
- 50A–630A wide current range covers diverse high-power applications
- UL & IEC certified for global market compliance
- Square body design for stable mounting and space efficiency
For engineers and system designers seeking a high-performance 500V DC semiconductor fuse, the GFEVT500-A-43E offers unmatched speed, reliability, and protection for demanding DC power applications.
GFEVT500-A-43E Square High Speed Fuse 50A-630A 500V Dc semiconductor fuses
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)
GFEVVT500-XXXA-43E
GFEVT500-XXXAN-43E
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
| Part No. | Fuse | Size | Average @ 50KA/500Vdc | Power Loss (W) 1.0In | |
|---|---|---|---|---|---|
| Amps | A²s Melting | A²s Clearing | |||
| GFEVT500-50A-43E | 50 | 01* | 126 | 995 | 9 |
| GFEVT500-63A-43E | 63 | 01* | 212 | 1,679 | 13 |
| GFEVT500-80A-43E | 80 | 01* | 345 | 2,699 | 17 |
| GFEVT500-100A-43E | 100 | 01* | 640 | 5,020 | 19 |
| GFEVT500-125A-43E | 125 | 01* | 1,135 | 8,940 | 23 |
| GFEVT500-160A-43E | 160 | 01* | 1,920 | 15,135 | 29 |
| GFEVT500-200A-43E | 200 | 01* | 3,480 | 27,383 | 36 |
| GFEVT500-250A-43E | 250 | 01* | 5,770 | 45,210 | 44 |
| GFEVT500-315A-43E | 315 | 01* | 9,760 | 76,920 | 55 |
| GFEVT500-350A-43E | 350 | 01* | 13,840 | 108,450 | 58 |
| GFEVT500-400A-43E | 400 | 01* | 19,280 | 151,350 | 65 |
| GFEVT500-450A-43E | 450 | 01* | 25,900 | 203,500 | 72 |
| GFEVT500-500A-43E | 500 | 01* | 33,450 | 262,500 | 80 |
| *GFEVT500-550A-43E | *550 | 01* | 45,040 | 352,800 | 85 |
| *GFEVT500-630A-43E | *630 | 01* | 65,500 | 497,500 | 97 |
| *: If there are any requirements, please communicate with the original factory staff first. Optional base indicator, the standard product is the “Default” configuration. Default: A – with fuse indication, e.g.: GFEVT500-400A-43E |
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