GFBFG4-S-105E Series Square-Body aR ESS Energy-Storage DC Fuse 1500VDC 400-2000A
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Dimensions (mm)
GFBFG4‑S‑105E Series Square‑Body aR ESS Energy‑Storage DC Fuse 1500VDC 400‑2000A
GFBFG4‑S‑105E Series Square‑Body aR ESS Energy‑Storage DC Fuse 1500VDC 400‑2000A is square‑body bolt‑connected aR‑class high‑speed DC fuse specially developed for large‑scale industrial energy‑storage and wind‑power systems. Rated voltage 1500VDC, maximum breaking capacity up to 250kA @1500VDC (L/R ≤5ms), minimum breaking current >5 In. It provides excellent DC interruption performance, strong current‑limiting characteristic and superior cycling capability. Referenced to UL‑248‑13 standard, CE & RoHS compliant. Ideal short‑circuit protection solution for industrial ESS, wind power converters and heavy‑duty DC power equipment.
GFBFG4-S-105E-Series.-400-2000A-1500Vdc-IR-250kA-4-ESSEV-2-1
Key Features
- Model Series: GFBFG4‑S‑105E Square‑Body aR ESS Energy‑Storage DC Fuse
- Rated Voltage: 1500 VDC
- Current Range: 400A‑2000A, Operation Class: aR (semiconductor / partial‑range short‑circuit protection)
- Max Breaking Capacity: 250kA @1500VDC (L/R ≤5ms)
- Minimum Breaking Current: >5 In
- Excellent DC interruption performance, strong current‑limiting characteristic
- Superior cycling capability for frequent working‑condition fluctuation scenarios
- Square‑body #4 size, bolt‑on connection with M12 mounting holes
- High mechanical stability for heavy‑duty industrial cabinet installation
- Compliant: Referenced to UL‑248‑13, CE, RoHS; REACH available upon request
General Technical Specifications
| Product Series | GFBFG4‑S‑105E Square‑Body aR ESS Energy‑Storage DC Fuse |
| Rated Voltage | 1500 V DC |
| Rated Current Range | 400A‑2000A (aR operation class) |
| Max Breaking Capacity | 250kA @1500VDC (L/R ≤5ms) |
| Minimum Breaking Current | ＞5 In |
| Body Size | #4 square‑body, M12 bolt mounting holes |
| Standards Reference | Referenced to UL‑248‑13, CE, RoHS |
| Operating Temperature | ‑5℃ ~ +40℃(regular);‑40℃~+85℃(allowable) |
| Storage Temperature | ‑40℃ ~ +120℃ |
Part Number List & Electrical Parameters
| Part Number | Rated Current | Melting A²s | Clearing A²s @250kA/1500Vdc | Power Loss(W) @1.0In | Body Size |
| GFBFG4‑400S‑105E | 400A | 42500 | 267800 | 165 | #4 |
| GFBFG4‑500S‑105E | 500A | 93700 | 593500 | 172 | #4 |
| GFBFG4‑630S‑105E | 630A | 165000 | 1060000 | 184 | #4 |
| GFBFG4‑700S‑105E | 700A | 223500 | 1420000 | 190 | #4 |
| GFBFG4‑800S‑105E | 800A | 317000 | 2010000 | 194 | #4 |
| GFBFG4‑900S‑105E | 900A | 443000 | 2800500 | 203 | #4 |
| GFBFG4‑1000S‑105E | 1000A | 665000 | 4190000 | 210 | #4 |
| GFBFG4‑1100S‑105E | 1100A | 795600 | 5050400 | 220 | #4 |
| GFBFG4‑1200S‑105E | 1200A | 954000 | 6065670 | 243 | #4 |
| GFBFG4‑1250S‑105E | 1250A | 1154000 | 7250780 | 255 | #4 |
| GFBFG4‑1300S‑105E | 1300A | 1331000 | 8520500 | 261 | #4 |
| GFBFG4‑1350S‑105E | 1350A | 1450000 | 9140800 | 268 | #4 |
| GFBFG4‑1400S‑105E | 1400A | 1765000 | 11200500 | 273 | #4 |
| GFBFG4‑1500S‑105E | 1500A | 1934000 | 12175530 | 280 | #4 |
| GFBFG4‑1600S‑105E | 1600A | 2435000 | 15580500 | 291 | #4 |
| GFBFG4‑1800S‑105E | 1800A | 3045000 | 19200700 | 310 | #4 |
| *GFBFG4‑2000S‑105E | 2000A | 4050000 | 25820000 | 348 | #4 |
Application Scenarios
GFBFG4‑S‑105E Series Square‑Body aR ESS Energy‑Storage DC Fuse 1500VDC 400‑2000A is designed for heavy‑duty new‑energy industrial DC applications: large‑scale industrial energy‑storage systems, wind‑power converter cabinets, high‑power DC power equipment. The aR‑class partial‑range protection characteristic provides reliable short‑circuit protection for power semiconductors and DC equipment under severe fault‑current conditions.
Installation & Operating Notes
- Square‑body bolt‑on mounting with M12 screw holes; apply correct bolt torque value to avoid bad 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; for altitude 2000‑4500m, implement current‑derating according to altitude‑Ka correction coefficient.
- For closed‑box cabinet installation, extra derating is required due to poor heat dissipation.
- Parallel mounting permitted only within dimensional and specification guidelines for higher ampacity.
- 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.
- *Note: Model marked with asterisk should be confirmed and communicated with factory before ordering.
Packing & Storage Requirements
Standard original‑box bulk package. Store in clean, dust‑free warehouse environment. Storage temperature:‑40℃~+85℃; humidity limit: RH≤70%@40℃, RH≤80%@30℃, RH≤90%@20℃. Sample testing support, OEM customization, stable mass‑volume supply for industrial energy‑storage and wind‑power manufacturers. REACH declaration available upon customer request.
FAQ
Q: What rating for GFBFG4‑S‑105E Series Square‑Body aR ESS Energy‑Storage DC Fuse 1500VDC 400‑2000A?
A: Rated 1500VDC, current range 400‑2000A, aR partial‑range protection class, max breaking capacity up to 250kA@1500VDC(L/R ≤5ms), minimum breaking current＞5In.
Q: What is aR‑class partial‑range protection?
A: aR‑class partial‑range fuse is designed for short‑circuit protection of semiconductor‑based power devices, mainly acts on heavy fault‑current conditions.
Q: What mounting structure does GFBFG4‑S‑105E adopt?
A: #4 square‑body housing, M12 bolt‑on connection for cabinet installation.
Q: What standards does GFBFG4‑S‑105E comply with?
A: Performance referenced to UL‑248‑13, CE, RoHS compliant; REACH document available on request.
Q: Main application scenarios for GFBFG4‑S‑105E?
A: Industrial energy‑storage system, wind‑power converter, heavy‑duty DC equipment short‑circuit protection.
