Cầu chì DC tác động nhanh thân vuông GFEVT1000‑B‑43E Series 1000VDC 50‑400A
GFEVT1000‑B‑43E square‑body fast‑acting aR DC fuse,1000VDC 50‑400A,50kA interrupting rating for energy‑storage,battery‑pack and DC relay backup protection.
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Cầu chì DC tác động nhanh thân vuông GFEVT1000‑B‑43E Series 1000VDC 50‑400A
GFEVT1000‑B‑43E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 50‑400A is Size 01* square‑body bolt‑mount fast‑acting aR‑class DC fuse for new‑energy DC systems. Rated voltage 1000VDC, max breaking capacity 50kA@1000VDC(L/R ≤2ms), minimum breaking current＞3In. Two versions available: B‑type with blow indicator, BN‑type without indicator. Features superior cycling capability, low watt losses, excellent vibration & shock 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, battery‑pack and DC relay backup applications.
GFEVT1000-B-43E-Series.-01.-50-400A-1000V-fast-acting-fuse
Key Features
- Model Series: GFEVT1000‑B‑43E Square‑Body Fast‑Acting aR DC Fuse
- Rated Voltage:1000 VDC
- Current Range:50A‑400A, Operation Class:aR (semiconductor / DC short‑circuit protection)
- Max Breaking Capacity:50kA @1000VDC(L/R ≤2ms)
- Minimum Breaking Current:＞3 In
- Two optional versions: B‑type with fuse blow indicator; BN‑type without indicator
- Superior cycling capability, low watt‑loss performance
- Fast fault‑current interruption, good anti‑voltaic impingement and wide ambient temperature tolerance
- Size 01* square‑body bolt‑on construction
- 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 | GFEVT1000‑B‑43E Series Square‑Body Fast‑Acting aR DC Fuse |
| Rated Voltage | 1000 V DC |
| Rated Current Range | 50A‑400A (aR operation class) |
| Max Breaking Capacity | 50kA @1000VDC (L/R ≤2ms) |
| Minimum Breaking Current | ＞3 In |
| Mechanical Size | Size 01* square‑body bolt‑mount |
| Product Versions | B(with blow‑indicator), BN(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@1000VDC,50kA,L/R≤2ms)
| Part Number | Rated Current | Pre‑Arcing I²t (A²s) | Clearing I²t (A²s) | Power Loss(W) @1.0In | Body Size |
| GFEVT1000‑50B‑43E | 50A | 137 | 1000 | 16 | 01* |
| GFEVT1000‑63B‑43E | 63A | 215 | 1620 | 19 | 01* |
| GFEVT1000‑80B‑43E | 80A | 410 | 3145 | 23 | 01* |
| GFEVT1000‑100B‑43E | 100A | 740 | 5645 | 29 | 01* |
| GFEVT1000‑125B‑43E | 125A | 1460 | 10860 | 34 | 01* |
| GFEVT1000‑160B‑43E | 160A | 2535 | 19850 | 41 | 01* |
| GFEVT1000‑200B‑43E | 200A | 5070 | 38200 | 46 | 01* |
| GFEVT1000‑250B‑43E | 250A | 8970 | 68550 | 51 | 01* |
| GFEVT1000‑315B‑43E | 315A | 18200 | 142950 | 61 | 01* |
| GFEVT1000‑350B‑43E | 350A | 26400 | 199500 | 66 | 01* |
| GFEVT1000‑400B‑43E | 400A | 38750 | 293500 | 74 | 01* |
Application Scenarios
GFEVT1000‑B‑43E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 50‑400A is dedicated for new‑energy high‑voltage DC projects. Widely used in energy‑storage systems, lithium‑ion battery‑pack protection, DC relay backup protection. aR‑class fast‑acting characteristic provides reliable short‑circuit protection for power semiconductors and DC‑side components under heavy fault‑current conditions.
Installation & Operating Notes
- Square‑body bolt‑on mounting; apply correct bolt torque value to avoid poor contact and over‑heating risk.
- 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 2000‑4500m: derate 2%‑5% rated‑current per 1000m elevation increase. Open‑air installation can normally ignore altitude influence. Re‑check insulation clearance at high altitude per GB/T16935.1.
- Supports vertical, horizontal and inclined mounting; avoid gravity‑vibration adverse impact for spring‑contact construction.
- Forced‑air cooling can improve heat dissipation and increase 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 mechanical damage, crack or deformation occurs on fuse body.
- Additional reliability validation test shall be conducted for extremely high‑vibration industrial working environments.
- Select matched copper conductor cross‑section for terminals to control temperature‑rise performance.
- Two ordering options: B‑version with blow indicator; BN‑version without blow indicator, please clarify when placing order.
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 equipment manufacturers. REACH declaration available upon customer request.
Câu hỏi thường gặp
Q: What rating for GFEVT1000‑B‑43E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 50‑400A?
A: Rated 1000VDC, current range 50‑400A, aR fast‑acting class, max breaking capacity 50kA@1000VDC(L/R ≤2ms), minimum breaking current＞3In.
Q: What are B‑type and BN‑type difference?
A: B‑version comes with fuse blow indicator; BN‑version without blow indicator, both share identical electrical performance.
Q: What mounting size for GFEVT1000‑B‑43E?
A: Size 01* square‑body bolt‑on construction.
Q: What standards does GFEVT1000‑B‑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 GFEVT1000‑B‑43E?
A: Energy‑storage systems, battery‑pack and DC relay backup short‑circuit protection.
