5H20L Fast-acting DC Fuse 60-150A | 20kA gR Fuse
5H20L fast-acting DC fuse 60-150A, DC450/500V, 20kA breaking capacity. gR full-range protection for on-board battery, wiring harness & inverter. ISO8820 JASO D622 UL248-20. Request datasheet & quote.
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5H20L Fast-acting DC Fuse 60-150A | 20kA gR Fuse
Product Overview
The 5H20L series fast‑acting DC fuse is GFEV high‑performance gR full‑range protection component for rated DC voltage up to 500V (450V), covering rated current 60A to 150A with a 20kA breaking capacity. It delivers strong current‑limiting performance, high breaking capacity and very fast short‑circuit cut‑off, and is designed for comprehensive protection of on‑board battery, on‑board wiring line systems and inverters.
Built to withstand temperature shock, mechanical vibration, impulse (current) shock and chemical loads, the 5H20L series meets ISO 8820, JASO D622 and GB/T31465, with environmental reliability per GB/T31465.6, ISO 8820‑8, JASO D622 and UL248‑20. Custom agreed current‑fusing time can be negotiated for project‑specific requirements.
Key Features & Structural Advantages
- Fuse tube made of high‑temperature‑resistant ceramic material: high flame retardancy and strong hardness
- Melt element is a variable‑cross‑section ribbon of 99.99% pure silver, sealed inside the tube
- Tube filled with chemically‑treated high‑purity quartz sand plus special chemical material as arc‑extinguishing medium
- Silver‑plated contact surfaces: reliable electrical contact, greatly reduced temperature rise and power consumption
- Both ends of the melt firmly connected to contacts by spot welding, greatly enhancing short‑circuit breaking safety and reliability
- Strong current limiting + high breaking capacity + fast short‑circuit breaking speed
- Usage category: gR — full‑range fast‑acting fuse protection
- Wide allowable operating temperature: ‑40℃ ~ +125℃
Electrical Specifications & Model List
| Model No. | Rated Current (A) | Rated DC Voltage | Max. Voltage Drop (mV) | Breaking Capacity (DC) |
|---|---|---|---|---|
| 5H20L060 | 60 | 500V / 450V | 37 | 20kA |
| 5H20L070 | 70 | 500V / 450V | 34 | 20kA |
| 5H20L080 | 80 | 500V / 450V | 34 | 20kA |
| 5H20L100 | 100 | 500V / 450V | 33 | 20kA |
| 5H20L125 | 125 | 500V / 450V | 33 | 20kA |
| 5H20L150 | 150 | 500V / 450V | 32 | 20kA |
Note: Performance characteristics are obtained at rated constant temperature 25°C; characteristics vary with operating environment and surrounding design. Custom agreed current‑fusing time negotiable.
Agreed Current‑Fusing Time (In ≥ 60A)
| Test Current | Min Fusing Time (s) | Max Fusing Time (s) |
|---|---|---|
| 1.1 In | 14400 | – |
| 1.35 In | 150 | 3600 |
| 1.5 In | 20 | 1500 |
| 2 In | 1 | 300 |
| 3 In | 0.2 | 30 |
| 5 In | 0.05 | 1 |
Working Condition & Application Scenarios
- Normal ambient air temperature: ‑5℃ ~ +40℃
- Allowable operating ambient temperature: ‑40℃ ~ +125℃
Compliance & Certifications
- Product standards：ISO 8820，JASO D622，GB/T31465
- Environmental reliability standards：GB/T31465.6，ISO 8820‑8，JASO D622，UL248‑20
Datasheet Download
FAQ
1: What does gR full‑range mean for the 5H20L fuse?
gR means full‑range fast‑acting protection — it protects both overload and short‑circuit fault conditions across the full current range.
2: What is the breaking capacity of the 5H20L series?
All models (60A–150A) have a DC breaking capacity of 20kA at 450V/500V.
3: What are the main applications of 5H20L?
It is designed for comprehensive protection of on‑board batteries, on‑board wiring line systems and inverters, with strong current limiting and fast short‑circuit breaking.
