GFHVT1500‑S‑105E 1500Vdc Fast‑Acting Fuse 400‑2000A

GFHVT1500‑S‑105E Series 1500Vdc Fast‑Acting Bolt‑Connected Square‑Body Fuse 400‑2000A

Product Overview

The GFHVT1500-S-105E is a DC fuse designed as a bolt-on fast-acting fuse for BESS and wind-power DC drive systems. This fuse supports 1500Vdc at 400-2000A with aR 250kA breaking capacity at L/R≤5ms.

,The GFHVT1500‑S‑105E series is heavy‑duty square‑body fast‑acting aR fuse link with S‑type two‑M12 bolt‑on busbar terminals, purpose‑built for high‑power DC circuits with low L/R time‑constant. Rated for 1500Vdc, current range 400A‑2000A, maximum interrupting capacity 250kA@1500Vdc (L/R ≤5ms), minimum breaking current＞3In.

This high‑current bolt‑mount fuse features low arc‑voltage and low let‑through I²t, excellent charge‑discharge cycling performance and ≥20g shock‑vibration resistance. Tin‑plated (3‑5μm) terminal surface ensures stable bus‑bar contact. Optimized for megawatt‑scale energy‑storage, wind‑power converter and heavy‑duty DC‑drive equipment.

Key Features & Benefits

• ✅ S‑type 2‑pcs M12 bolt‑on busbar connection, compact heavy‑duty for high‑current power loop
• ✅ Rated voltage 1500V DC, suitable for large‑scale DC energy‑storage architecture
• ✅ Fast‑acting aR semiconductor‑protection characteristic; low arc‑voltage & low let‑through I²t
• ✅ Interrupt rating: 250 kA @1500Vdc (L/R ≤5ms), minimum breaking current＞3In
• ✅ Superior charge‑discharge cycling capability for frequent fluctuating DC working conditions
• ✅ Excellent mechanical shock & vibration resistance (≥20g), fits wind‑turbine & container‑ESS cabinet
• ✅ 3‑5μm tin‑plated contact surface for anti‑oxidation and stable electrical connection
• ✅ RoHS compliant, REACH statement available upon request
• ✅ Designed per UL 248‑13, IEC 60269‑4 standards

Main Electrical Specifications

Note: Recommended continuous operating current ≤75 % of fuse nominal rating under standard ambient‑temperature conditions. DC interrupt performance strongly depends on circuit L/R time‑constant.

Part Numbering Explanation

Example Model: GFHVT1500‑1000S‑105E

Mechanical Dimensions & Installation

S‑type two‑M12 bolt‑on terminals, compact heavy‑duty for high‑current bus‑bar assembly, tin‑plated contact surface. Dimensions: Length 153±3 mm; Install length137±2 mm; Height105±1.5 mm

Installation note: M12 screw hole; max hole depth12.5 mm, minimum thread length12 mm. Apply proper tightening torque to avoid over‑heating contact points. Tin plating thickness:3‑5 microns.

Full Part List Table

Application Fields

• ⚡ Large‑scale & container‑type Battery‑Energy‑Storage System(BESS) main‑circuit short‑circuit protection
• ⚡ Wind‑power converter / wind turbine DC‑link short‑circuit protection (low L/R circuit)
• ⚡ Heavy‑duty DC drives & industrial DC power equipment
• ⚡ Large‑capacity lithium‑ion battery‑cluster protection
• ⚡ DC bus‑bar over‑current & short‑circuit protection for high‑power energy‑storage station

Standards & Certifications

Important: DC interrupt performance subject to actual circuit L/R time‑constant, confirm L/R ratio before project adoption. This variant is optimized for circuit L/R ≤5ms scenarios.

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 Curves

• Curve‑1 covers rating 400‑1200A
• Curve‑2 covers rating 1250‑2000A
• Curve tolerance: ±15 % on current axis. Minimum breaking current＞3 × In.

Frequently Asked Questions

1: What is the interrupt rating and minimum breaking current for GFHVT1500‑S‑105E?

1: 250kA@1500Vdc for L/R ≤5ms; minimum breaking current＞3In. DC interrupt performance is highly dependent on circuit L/R time‑constant.

2: What does S‑type terminal mean?

2: S‑type is two‑M12 bolt‑on bus‑bar compact connection for high‑current heavy‑duty application, 3‑5μm tin‑plated contact surface for anti‑oxidation.

3: What is the difference between S‑105E and D‑105E?

3: S‑105E uses 2×M12 mounting holes (compact footprint); D‑105E uses 4×M10 mounting holes. Both share 250kA@L/R≤5ms interrupt rating, different mechanical installation footprint.

4: Can GFHVT1500‑S‑105E be used for wind‑turbine DC‑link protection?

4: Yes. Optimized for low L/R DC‑link in wind‑power converter, large‑scale BESS and heavy‑duty DC‑drive. Need I²t coordination and L/R validation.

5: What derating shall I apply for sealed cabinet working at high altitude?

5: For sealed cabinets operating above 2000 m altitude, derate 2‑5 % per 1000 m elevation. Higher derating ratio applies for larger‑ampacity models.

6: What is suggested maximum continuous operating current?

6: Under standard ambient‑temperature conditions, continuous working current should not exceed 75 % of fuse nominal rated‑current.

Download Datasheet & Resources

📄 Download GFHVT1500‑S‑105E Series Datasheet(PDF) GFHVT1500-S-105E-Series.-400-2000A-1500Vdc-IR-250kA-4-Fast-Acting fuse

📎 Request REACH Declaration | Request CAD Drawing | Ask Technical Support

Need fuse‑selection support? Contact our engineering team for I²t‑matching, L/R‑ratio evaluation and system‑coordination advice for your large‑power energy‑storage or wind‑power project.