GFHVT1500‑59ES 1500Vdc Fast‑Acting Fuse 100‑630A aR 50kA
GFHVT1500‑59ES square‑body DC fuse,1500Vdc,100‑630A,aR 50kA interrupt. UL/IEC compliant for BESS,battery pack & DC relay backup. Download datasheet.
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GFHVT1500‑59ES Series 1500Vdc Fast‑Acting Square‑Body Fuse 100‑630A
Product Overview
The GFHVT1500‑59ES series is compact square‑body fast‑acting aR fuse links engineered for high‑energy DC circuits. Rated for 1500Vdc, this DC fuse covers ampere ratings 100A‑630A, maximum interrupting capacity 50kA@1500Vdc, minimum breaking current ≥5×In.
Optimized for energy‑storage and lithium‑ion battery systems, it delivers excellent DC fault‑clearing performance, low watt loss, high cycling endurance and strong shock‑vibration resistance. Three terminal styles: B bolted, U DIN fork, K custom fork for multiple cabinet installation requirements.
Key Features & Benefits
- ✅ Rated voltage 1500V DC, reduces conductor cost and improves overall system efficiency
- ✅ Fast‑acting response: up to 10× faster opening under high fault‑current for circuit & component protection
- ✅ Class aR semiconductor‑protection fuse, time constant ≤5 ms
- ✅ High interrupt rating: 50 kA @1500Vdc, minimum breaking current ≥5In
- ✅ Low power loss, superior cycling capability
- ✅ Broad temperature tolerance, anti‑shock and high vibration resistance (≥20g)
- ✅ Three connection options: B bolted, U DIN‑fork, K custom fork mount
- ✅ RoHS compliant, REACH statement available upon request
- ✅ Complies with UL 248.1 / UL 248.13, IEC 60269‑1 / IEC 60269‑4
Main Electrical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 1500 Vdc |
| Rated Current Range | 100A‑630A |
| Fuse Class | aR Fast‑acting |
| Max Interrupt Capacity | 50 kA @1500Vdc |
| Minimum Breaking Current | ≥5×In |
| Time Constant | ≤5 ms |
| Connection Types | B(Bolted), U(DIN fork), K(Custom fork) |
| Storage Temperature | -40 ℃ ~ +120 ℃ |
| Normal Operating Ambient | -5 ℃ ~ +40 ℃ |
| Allowable Operating Temperature | -40 ℃ ~ +85 ℃ |
Note: Recommended continuous operating current ≤75 % of fuse nominal rating under standard conditions. Ratings 450‑630A certification pending, consult factory before project specification.
Part Numbering Explanation
Example Model: GFHVT1500‑400B‑59ES
| Code | Definition |
|---|---|
| GF | Manufacturer Code (GFEV) |
| HV | High‑Speed / Fast‑Acting |
| T | Ceramics Body |
| 1500 | Rated Voltage:1500Vdc |
| 400 | Rated Current(A) |
| B | Connection Type: B / U / K |
| 59ES | Series Code |
Connection Types & Mechanical Dimensions
B‑Type：Bolted Connection（xxxB‑59ES）
Long‑bar bolt horizontal mounting, heavy‑duty bolt terminals for high‑current cabinet application.
U‑Type：DIN Fork Connection（xxxU‑59ES）
Standard DIN fork‑blade terminals, horizontal installation.
K‑Type：Custom Fork Connection（xxxK‑59ES）
Custom fork‑blade terminal for vertical mounting for project‑specific mechanical adaptation.
Full Part List Table（Markdown 可复制，粘贴 Excel 自动分列）
Note: Replace X with B/U/K; ●=Compliant; ￮=Certification Pending, consult factory.
| Connect Type | Part Number | Rated Fuse Amps | Melting A²s | Clearing A²s | Power Loss 80%In(W) | Power Loss 100%In(W) | RoHS |
|---|---|---|---|---|---|---|---|
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑100X‑59ES | 100A | 2370 | 8857 | 41 | 53 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑125X‑59ES | 125A | 4890 | 13219 | 47 | 60 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑160X‑59ES | 160A | 7192 | 19440 | 50 | 64 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑200X‑59ES | 200A | 11066 | 29907 | 68 | 86 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑250X‑59ES | 250A | 17940 | 48480 | 86 | 107 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑315X‑59ES | 315A | 30568 | 82610 | 102 | 127 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑350X‑59ES | 350A | 40655 | 109878 | 109 | 136 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑400X‑59ES | 400A | 58496 | 158090 | 121 | 151 | ● |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑450X‑59ES | 450A | 78890 | 213215 | 128 | 161 | ￮ Pending |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑500X‑59ES | 500A | 101503 | 274330 | 139 | 174 | ￮ Pending |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑550X‑59ES | 550A | 125982 | 340490 | 155 | 194 | ￮ Pending |
| Bolted‑B/Din‑U/Custom‑K | GFHVT1500‑630X‑59ES | 630A | 185020 | 500100 | 162 | 203 | ￮ Pending |
Application Fields
- ⚡ Battery Pack & Energy Storage System(BESS) main‑circuit short‑circuit protection
- ⚡ Backup short‑circuit protection for DC relays & DC contactors
- ⚡ Energy‑storage cabinet DC busbar over‑current & short‑circuit protection
- ⚡ Maintenance safety disconnector / DC isolation application
- ⚡ High‑current DC industrial energy‑storage equipment
Standards & Certifications
| Standard / Certificate | Status |
|---|---|
| UL 248.1, UL 248.13 | Complied (≤400A); Pending (450‑630A) |
| IEC 60269‑1, IEC 60269‑4 | Complied (≤400A); Pending (450‑630A) |
| RoHS | Compliant |
| REACH | Declaration available upon request |
Note: 450‑630A models certification process ongoing, please contact EssFuse engineering before project adoption.
Operating & Derating Conditions
Important: Recommended continuous operating current ≤75 % of fuse nominal rating under standard conditions.
Ambient Temperature Derating
Above 40 ℃ ambient temperature requires rated‑current derating according to derating curve. Below ‑5 ℃, pre‑arcing time for low overload will slightly extend.
Altitude Derating
Normal working altitude ≤2000 m. For closed‑enclosure applications at altitude 2000‑4500 m: derate rated current 2‑5 % per 1000 m elevation increase. Air insulation strength drops at high altitude, check clearance per GB/T 16935.1.
Forced Air Cooling Correction
Forced ventilation improves heat‑dissipation and raises allowable continuous operating current, refer to Kv correction curve vs wind‑speed(m/s).
Time‑Current Characteristic Curve
TCC curve covers rating 100‑630A. Curve tolerance: ±15 % on current axis. Minimum breaking current =5 × In.
Frequently Asked Questions
1: What is the minimum breaking current for GFHVT1500‑59ES series?
1: Minimum breaking current equals 5 times nominal rated current(5In).
2: Can GFHVT1500‑59ES be used for lithium‑ion battery pack short‑circuit protection?
2: Yes. It is aR‑class fast‑acting fuse designed for battery‑pack and energy‑storage DC main‑circuit protection. Please verify I²t coordination with your BMS.
3: What derating should I apply for high‑altitude closed‑cabinet installation?
3: For sealed cabinets operating above 2000 m altitude, derate 2‑5 % per 1000 m elevation. Higher derating ratio applies for larger‑ampacity models.
4: What are connection codes B/U/K stand for?
4: B=Bolted long‑bar connection; U=DIN fork‑blade; K=custom fork‑blade for vertical mounting.
5: Are 450‑630A versions fully certified?
5: Certifications for 450‑630A are still in process. Contact EssFuse engineering for project evaluation before selection.
6: What is the maximum continuous operating current suggestion?
6: Under standard ambient‑temperature conditions, continuous working current should not exceed 75 % of fuse rated‑current.
Download Datasheet & Resources
📄 Download GFHVT1500‑59ES Series Datasheet(PDF)GFHVT1500-59ES-Series.-100-630A-1500Vdc-IR.50kA- fast-acting fuse-1
📎 Request REACH Declaration | Request CAD Drawing | Ask Technical Support
Need fuse‑selection support? Contact our engineering team for system coordination and I²t‑matching advice.
