GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse 1500VDC 100‑1250A
GFHVT1500‑74E square‑body fast‑acting aR DC fuse,1500VDC 100‑1250A,250kA breaking capacity. Two terminal options: B‑flat bolted / K‑hook‑fork customized.
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Dimensions (mm)
Din xxxBN-74E Dimensions
Bolted xxxB-74E Dimensions
Customize xxxK-74E Dimensions
GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse 1500VDC 100‑1250A
GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse 1500VDC 100‑1250A is Size 3# square‑body bolt‑mount aR‑class high‑speed DC fuse, engineered for heavy‑duty new‑energy DC‑system applications. Rated voltage 1500VDC, max breaking capacity 250kA@1500VDC (Time Constant ≤5ms), minimum breaking current ≥5In. Two mechanical terminal configurations are available: B‑type flat bolted horizontal connection; K‑type customized hook‑fork vertical connection. It features excellent cycling performance, low power loss, strong anti‑arc capability and wide ambient‑temperature adaptability, mechanical shock‑vibration resistance ≥20g. Performance references UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS compliant; REACH document is available upon request. It provides dependable short‑circuit protection for large‑scale energy‑storage cabinets, lithium‑ion battery‑packs and DC relay backup units.
GFHVT1500-74E-Series.-100-1250A-1500Vdc-IR.250kA-fast-acting-fuse-1
Key Features
- Model Series: GFHVT1500‑74E Square‑Body Fast‑Acting aR DC Fuse
- Rated Voltage: 1500 VDC
- Current Range: 100A‑1250A; Operation Class: aR (semiconductor short‑circuit protection)
- Max Breaking Capacity: 250kA @1500VDC (Time Constant ≤5ms)
- Minimum Breaking Current: ≥5 In
- Two interchangeable terminals: B‑flat bolted horizontal; K‑custom hook‑fork vertical
- Outstanding cycling capability & low watt‑loss characteristic
- Ultra‑fast fault‑current interruption, strong anti‑voltaic impingement
- Size 3# square‑body package for cabinet layout optimization
- High shock‑vibration resistance ≥20g, suitable for industrial & new‑energy cabinet environment
- Compliance: Referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS; REACH on request
General Technical Specifications
| Product Series | GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse |
| Rated Voltage | 1500 V DC |
| Rated Current Range | 100A‑1250A (aR operation class) |
| Max Breaking Capacity | 250kA @1500VDC (Time Constant ≤5ms) |
| Minimum Breaking Current | ≥5 In |
| Body Size | Size 3# square‑body |
| Terminal Options | B‑flat bolted horizontal / K‑hook‑fork customized vertical |
| Shock & Vibration Resistance | ≥20g |
| Standards Compliance | Referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS |
| Operating Temperature | ‑5℃ ~ +40℃(nominal);‑40℃~+85℃(allowable) |
| Storage Temperature | ‑40℃ ~ +120℃ |
Part Number List & Electrical Parameters(Test@1500VDC,250kA,Time‑Constant≤5ms)
| Part Number | Rated Current | Terminal Type | Pre‑Arcing I²t (A²s) | Clearing I²t (A²s) | Power Loss(W) @100% In | Body Size |
| GFHVT1500‑100B‑74E | 100A | B‑bolted | 1150 | 4680 | 60 | 3# |
| GFHVT1500‑125B‑74E | 125A | B‑bolted | 1750 | 8350 | 68 | 3# |
| GFHVT1500‑160B‑74E | 160A | B‑bolted | 3800 | 14000 | 90 | 3# |
| GFHVT1500‑200B‑74E | 200A | B‑bolted | 5200 | 23500 | 110 | 3# |
| GFHVT1500‑250B‑74E | 250A | B‑bolted | 10400 | 45000 | 120 | 3# |
| GFHVT1500‑315B‑74E | 315A | B‑bolted | 21238 | 76760 | 136 | 3# |
| GFHVT1500‑350B‑74E | 350A | B‑bolted | 29180 | 104691 | 148 | 3# |
| GFHVT1500‑400B‑74E | 400A | B‑bolted | 38468 | 136083 | 171 | 3# |
| GFHVT1500‑450B‑74E | 450A | B‑bolted | 54749 | 192815 | 187 | 3# |
| GFHVT1500‑500B‑74E | 500A | B‑bolted | 74371 | 259379 | 204 | 3# |
| GFHVT1500‑550B‑74E | 550A | B‑bolted | 93073 | 317075 | 221 | 3# |
| GFHVT1500‑630B‑74E | 630A | B‑bolted | 131578 | 437610 | 248 | 3# |
| GFHVT1500‑700B‑74E | 700A | B‑bolted | 182476 | 593977 | 273 | 3# |
| GFHVT1500‑800B‑74E | 800A | B‑bolted | 283377 | 893774 | 294 | 3# |
| GFHVT1500‑900B‑74E | 900A | B‑bolted | 408596 | 1247411 | 305 | 3# |
| GFHVT1500‑1000B‑74E | 1000A | B‑bolted | 546988 | 1605152 | 362 | 3# |
| GFHVT1500‑1100B‑74E | 1100A | B‑bolted | 751540 | 2129888 | 385 | 3# |
| GFHVT1500‑1200B‑74E | 1200A | B‑bolted | 991418 | 2779209 | 391 | 3# |
| *GFHVT1500‑1250B‑74E | 1250A | B‑bolted | 1121162 | 3162024 | 401 | 3# |
| GFHVT1500‑100K‑74E | 100A | K‑hook‑fork | 1150 | 4680 | 60 | 3# |
| GFHVT1500‑125K‑74E | 125A | K‑hook‑fork | 1750 | 8350 | 68 | 3# |
| GFHVT1500‑160K‑74E | 160A | K‑hook‑fork | 3800 | 14000 | 90 | 3# |
| GFHVT1500‑200K‑74E | 200A | K‑hook‑fork | 5200 | 23500 | 110 | 3# |
| GFHVT1500‑250K‑74E | 250A | K‑hook‑fork | 10400 | 45000 | 120 | 3# |
| GFHVT1500‑315K‑74E | 315A | K‑hook‑fork | 21238 | 76760 | 136 | 3# |
| GFHVT1500‑350K‑74E | 350A | K‑hook‑fork | 29180 | 104691 | 148 | 3# |
| GFHVT1500‑400K‑74E | 400A | K‑hook‑fork | 38468 | 136083 | 171 | 3# |
| GFHVT1500‑450K‑74E | 450A | K‑hook‑fork | 54749 | 192815 | 187 | 3# |
| GFHVT1500‑500K‑74E | 500A | K‑hook‑fork | 74371 | 259379 | 204 | 3# |
| GFHVT1500‑550K‑74E | 550A | K‑hook‑fork | 93073 | 317075 | 221 | 3# |
| GFHVT1500‑630K‑74E | 630A | K‑hook‑fork | 131578 | 437610 | 248 | 3# |
| GFHVT1500‑700K‑74E | 700A | K‑hook‑fork | 182476 | 593977 | 273 | 3# |
| GFHVT1500‑800K‑74E | 800A | K‑hook‑fork | 283377 | 893774 | 294 | 3# |
| GFHVT1500‑900K‑74E | 900A | K‑hook‑fork | 408596 | 1247411 | 305 | 3# |
| GFHVT1500‑1000K‑74E | 1000A | K‑hook‑fork | 546988 | 1605152 | 362 | 3# |
| GFHVT1500‑1100K‑74E | 1100A | K‑hook‑fork | 751540 | 2129888 | 385 | 3# |
| GFHVT1500‑1200K‑74E | 1200A | K‑hook‑fork | 991418 | 2779209 | 391 | 3# |
| *GFHVT1500‑1250K‑74E | 1250A | K‑hook‑fork | 1121162 | 3162024 | 401 | 3# |
Application Scenarios
GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse 1500VDC 100‑1250A is designed for high‑voltage DC new‑energy projects. It is widely used for energy‑storage power‑station cabinets, lithium‑ion battery‑pack and DC relay backup short‑circuit protection. The aR‑class fast‑acting characteristic offers reliable fault‑current protection for power semiconductors and high‑power DC‑side components.
Installation & Operating Notes
- Size 3# square‑body construction; select B‑flat bolted or K‑hook‑fork terminal according to cabinet layout. Apply proper bolt torque to prevent bad contact and over‑heating.
- Recommended continuous working current ≤75% of fuse rated‑current. Apply temperature‑derating factor Kt when ambient temperature exceeds +40℃.
- Altitude ≤2000m: no‑derating; closed‑box installation 2000‑4500m: derate 2%‑5% per 1000m elevation. Re‑check insulation clearance per GB/T16935.1 for high‑altitude deployment.
- Permits vertical, horizontal, inclined mounting. Avoid gravity‑vibration impact to spring‑contact‑related electrical contacts.
- Forced‑air cooling improves heat dissipation and allowable operating current; refer to Kv correction coefficient.
- Never replace fuse under live DC load unless equipped with certified load‑break switchgear.
- Replace fuse immediately if shell crack, deformation or mechanical damage occurs.
- Carry out extra reliability verification test for extremely high‑vibration industrial working conditions.
- Adopt matched copper conductor cross‑section for terminals to control temperature‑rise.
- Ordering reminder: specify terminal type B or K when placing order; models marked asterisk * need factory pre‑confirmation before order placement, electrical performance is identical for two terminal versions.
Packing & Storage Requirements
Standard original‑box bulk package. Keep warehouse clean and dust‑free. Storage temperature:‑40℃~+120℃; humidity: RH≤70%@40℃, RH≤80%@30℃, RH≤90%@20℃. Sample testing support, OEM customization, stable mass supply for energy‑storage equipment manufacturers. REACH declaration can be provided upon customer request.
FAQ
Q: What are the ratings of GFHVT1500‑74E Series Square‑Body Fast‑Acting aR DC Fuse 1500VDC 100‑1250A?
A: Rated 1500VDC, current range 100‑1250A, aR fast‑acting class, max breaking capacity 250kA@1500VDC(Time Constant ≤5ms), minimum breaking current ≥5In, Size 3# square‑body.
Q: What is difference between B‑type and K‑type terminals?
A: B‑type: flat bolted horizontal connection; K‑type: hook‑fork customized vertical terminal. Electrical parameters are fully identical; only mechanical mounting differs, please specify when ordering.
Q: What is body dimension for GFHVT1500‑74E?
A: Size 3# square‑body package, available in B / K two terminal structures.
Q: What standards does GFHVT1500‑74E follow?
A: Performance referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS compliant; REACH document available on request.
Q: Where is GFHVT1500‑74E mainly applied?
A: Energy‑storage power‑station cabinets, lithium‑ion battery‑pack and DC relay backup short‑circuit protection.
