GFEVT500-A-43E Square High Speed Fuse 50A-630A 500V Dc semiconductor fuses
GFEVT500‑A‑43E square‑body fast‑acting aR DC fuse,500VDC 50‑630A,50kA breaking capacity. Two versions: A‑with blow indicator, AN‑without blow indicator.
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Dimensions (mm)
GFEVVT500-XXXA-43E
GFEVT500‑A‑43E Series Square‑Body Fast‑Acting aR DC Fuse 500VDC 50‑630A
GFEVT500‑A‑43E Series Square‑Body Fast‑Acting aR DC Fuse 500VDC 50‑630A is Size 01* square‑body bolt‑mount fast‑acting aR‑class DC fuse for new‑energy DC‑system applications. Rated voltage 500VDC, max breaking capacity 50kA@500VDC(L/R ≤2ms), minimum breaking current＞3In. Two optional configurations: A‑type with blow indicator; AN‑type without blow indicator. Features superior cycling capability, low watt losses, excellent anti‑voltaic impingement, wide ambient temperature tolerance, mechanical shock & vibration resistance ≥20g. Performance referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS compliant, REACH declaration available upon request. Reliable short‑circuit protection for energy‑storage systems, lithium‑ion battery‑pack and DC relay backup applications.
GFEVT500-A-43E-Series.01.-50-630A-500Vdc-fast-acting-fuse
Key Features
- Model Series: GFEVT500‑A‑43E Square‑Body Fast‑Acting aR DC Fuse
- Rated Voltage:500 VDC
- Current Range:50A‑630A, Operation Class:aR (semiconductor / DC short‑circuit protection)
- Max Breaking Capacity:50kA @500VDC(L/R ≤2ms)
- Minimum Breaking Current:＞3 In
- Two ordering options: A‑version with blow indicator; AN‑version without blow indicator, identical electrical performance
- Superior cycling capability, low watt‑loss performance
- Up to ten‑times faster opening response under heavy fault‑current conditions
- Excellent anti‑voltaic impingement and wide ambient temperature tolerance
- Size 01* square‑body bolt‑on construction, 2‑M8 mounting holes
- High mechanical shock & vibration resistance ≥20g
- Compliant:Referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS; REACH available upon request
General Technical Specifications
| Product Series | GFEVT500‑A‑43E Series Square‑Body Fast‑Acting aR DC Fuse |
| Rated Voltage | 500 V DC |
| Rated Current Range | 50A‑630A (aR operation class) |
| Max Breaking Capacity | 50kA @500VDC (L/R ≤2ms) |
| Minimum Breaking Current | ＞3 In |
| Mechanical Size | Size 01*, 2‑M8 bolt mounting holes |
| Product Versions | A‑with blow indicator; AN‑without blow indicator |
| Shock & Vibration Resistance | ≥20g |
| Standards & Approvals | Referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS |
| Operating Temperature | ‑5℃ ~ +40℃(regular);‑40℃~+85℃(allowable) |
| Storage Temperature | ‑40℃ ~ +120℃ |
Part Number List & Electrical Parameters(Test@500VDC,50kA,L/R≤2ms)
| Part Number | Rated Current | Version | Pre‑Arcing I²t (A²s) | Clearing I²t (A²s) | Power Loss(W) @1.0In | Body Size |
| GFEVT500‑50A‑43E | 50A | A‑Indicator | 126 | 995 | 9 | 01* |
| GFEVT500‑63A‑43E | 63A | A‑Indicator | 212 | 1679 | 13 | 01* |
| GFEVT500‑80A‑43E | 80A | A‑Indicator | 345 | 2699 | 17 | 01* |
| GFEVT500‑100A‑43E | 100A | A‑Indicator | 640 | 5020 | 19 | 01* |
| GFEVT500‑125A‑43E | 125A | A‑Indicator | 1135 | 8940 | 23 | 01* |
| GFEVT500‑160A‑43E | 160A | A‑Indicator | 1920 | 15135 | 29 | 01* |
| GFEVT500‑200A‑43E | 200A | A‑Indicator | 3480 | 27383 | 36 | 01* |
| GFEVT500‑250A‑43E | 250A | A‑Indicator | 5770 | 45210 | 44 | 01* |
| GFEVT500‑315A‑43E | 315A | A‑Indicator | 9760 | 76920 | 55 | 01* |
| GFEVT500‑350A‑43E | 350A | A‑Indicator | 13840 | 108450 | 58 | 01* |
| GFEVT500‑400A‑43E | 400A | A‑Indicator | 19280 | 151350 | 65 | 01* |
| GFEVT500‑450A‑43E | 450A | A‑Indicator | 25900 | 203500 | 72 | 01* |
| GFEVT500‑500A‑43E | 500A | A‑Indicator | 33450 | 262500 | 80 | 01* |
| *GFEVT500‑550A‑43E | 550A | A‑Indicator | 45040 | 352800 | 85 | 01* |
| *GFEVT500‑630A‑43E | 630A | A‑Indicator | 65500 | 497500 | 97 | 01* |
Application Scenarios
GFEVT500‑A‑43E Series Square‑Body Fast‑Acting aR DC Fuse 500VDC 50‑630A is designed for new‑energy DC‑system projects. Widely applied in energy‑‑storage power‑station cabinets, lithium‑ion battery‑pack protection and DC relay backup short‑circuit protection. aR‑class fast‑acting performance delivers reliable fault‑current protection for power semiconductors and DC‑side power components.
Installation & Operating Notes
- Size 01* square‑body with 2‑M8 bolt mounting holes; apply specified bolt torque to avoid poor contact and over‑heating risk. Choose A‑version with blow indicator or AN‑version without blow indicator when ordering.
- Recommended continuous operating current ≤75% of fuse rated‑current; apply temperature‑derating‑factor Kt for ambient temperature over 40℃.
- Altitude ≤2000m no‑derating; closed‑box installation between 2000‑4500m: derate 2%‑5% rated‑current per 1000m elevation increase. Open‑air installation normally ignores altitude impact. Re‑check insulation clearance at high altitude in compliance with GB/T16935.1.
- Supports vertical, horizontal and inclined mounting; avoid gravity‑vibration negative influence for spring‑contact‑type devices.
- Forced‑air cooling improves heat dissipation and increases allowable operating current, refer to Kv correction coefficient.
- Do NOT replace fuse under live DC load unless equipped with certified load‑break switchgear.
- Replace fuse immediately if shell crack, deformation or mechanical damage appears.
- Additional reliability validation test required for extremely high‑vibration industrial environments.
- Select matched copper conductor cross‑section for terminals to control temperature‑rise performance.
- Ordering note: A = with blow indicator; AN = without blow indicator; models marked asterisk * need factory pre‑confirmation before order placement.
Packing & Storage Requirements
Standard original‑box bulk package. Store in clean, dust‑free warehouse. Storage temperature:‑40℃~+120℃; humidity limit: RH≤70%@40℃, RH≤80%@30℃, RH≤90%@20℃. Sample testing support, OEM customization, stable mass‑volume supply for energy‑storage and new‑energy equipment manufacturers. REACH declaration available upon customer request.
अक्सर पूछे जाने वाले प्रश्न
Q: What rating for GFEVT500‑A‑43E Series Square‑Body Fast‑Acting aR DC Fuse 500VDC 50‑630A?
A: Rated 500VDC, current range 50‑630A, aR fast‑acting class, max breaking capacity 50kA@500VDC(L/R ≤2ms), minimum breaking current＞3In, Size 01* square‑body.
Q: What is difference between A‑type and AN‑type?
A: A‑version is equipped with blow indicator; AN‑version without blow indicator. Both versions share exactly same electrical parameters, only mechanical indicator function differs, specify type when placing purchase order.
Q: What body size and mounting for GFEVT500‑A‑43E?
A: Size 01* square‑body construction, 2‑M8 bolt mounting holes.
Q: What standards does GFEVT500‑A‑43E comply with?
A: Performance referenced to UL‑248‑1/UL‑248‑13, IEC60269‑1/IEC 60269‑4, RoHS compliant; REACH document available on request.
Q: Main application scenarios for GFEVT500‑A‑43E?
A: Energy‑storage cabinets, lithium‑ion battery‑pack and DC relay backup short‑circuit protection.
