High‑Voltage Heavy‑Duty Fork Bolt‑Down Automotive Fuse,60A‑700A 125‑250V DC Fuse
High‑voltage heavy‑duty fork bolt‑down automotive fuse, ISO20934‑2019 heavy‑duty DC fuse 60A‑700A, 125‑250V DC, UL94‑V0 thermoplastic housing for new‑energy, heavy‑vehicle and energy‑storage circuit protection.
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High‑voltage heavy‑duty fork bolt‑down automotive fuse is high‑power heavy‑duty fork‑type bolt‑mount DC fuse complying with ISO20934‑2019 special‑purpose vehicle fuse standard. It adopts dual M8 bolt layout with 56 mm hole‑centre‑distance, high‑temperature‑resistant UL94‑V0 thermoplastic housing. Designed for 125‑250V DC high‑voltage heavy‑current circuits, this bolt‑down fuse offers superior short‑circuit breaking‑performance up to 6000A, widely applied in new‑energy vehicle, heavy‑duty machinery, marine vessel and large‑scale energy‑storage battery main‑circuit protection.
Key Features
- Heavy‑duty fork‑bolt construction, dual M8 mounting holes with 56 mm centre‑to‑centre spacing, recommended tightening torque:20.0 Nm ±1 Nm
- UL94‑V0 heat‑resistant thermoplastic housing, robust structure adapted to harsh on‑board vibration environment
- Tin‑plated copper‑alloy terminals, ultra‑low contact‑resistance, outstanding conductivity and anti‑corrosion capability
- Extra‑high interrupting capacity:6000A @125V DC for severe short‑circuit fault clearance
- Wide current coverage:60A‑700A, meets ultra‑high‑current main‑battery circuit requirements for high‑voltage DC‑systems
- Fully compliant with ISO 20934‑2019 international special‑purpose vehicle fuse standard
- Broad working temperature:‑40℃ ~ +125℃; maximum permissible contact‑point temperature reaches 150℃
- Specially built for 125‑250V DC new‑energy vehicle, marine, construction‑machinery and energy‑storage power‑distribution projects
Mechanical Dimensions (Unit:mm)
| Dimension Item | Value(mm) | Tolerance |
|---|---|---|
| Overall Length | 73.8 | ±0.1 |
| Stud hole centre distance | 56.0 | ±0.1 |
| Inner housing‑zone length | 29.5 | ±0.1 |
| Mounting‑stud hole diameter | 8.6 | ±0.1 |
| Left terminal height | 16.2 | ±0.1 |
| Right terminal height | 19.2 | ±0.1 |
| Fuse‑element thickness | 1.0 | ±0.1 |
| Fuse‑element width | 9.64 | ±0.1 |
Electrical Ratings Table
| Internal Model No. | Rated Current(A) | Max.Typical Voltage Drop |
|---|---|---|
| ANL‑B200060 | 60A | ≤110 mV |
| ANL‑B200070 | 70A | ≤110 mV |
| ANL‑B200080 | 80A | ≤110 mV |
| ANL‑B200100 | 100A | ≤110 mV |
| ANL‑B200125 | 125A | ≤110 mV |
| ANL‑B200150 | 150A | ≤110 mV |
| ANL‑B200175 | 175A | ≤110 mV |
| ANL‑B200200 | 200A | ≤110 mV |
| ANL‑B200225 | 225A | ≤110 mV |
| ANL‑B200250 | 250A | ≤110 mV |
| ANL‑B200275 | 275A | ≤110 mV |
| ANL‑B200300 | 300A | ≤80 mV |
| ANL‑B200350 | 350A | ≤80 mV |
| ANL‑B200400 | 400A | ≤80 mV |
| ANL‑B200450 | 450A | ≤80 mV |
| ANL‑B200500 | 500A | ≤80 mV |
| ANL‑B200550 | 550A | ≤80 mV |
| ANL‑B200600 | 600A | ≤80 mV |
| ANL‑B200650 | 650A | ≤80 mV |
| ANL‑B200700 | 700A | ≤80 mV |
Time‑Current Opening‑Time Characteristics
| % of Rated Current | 60A‑250A Min / Max(s) | 300A‑700A Min / Max(s) |
|---|---|---|
| 75% | ‑ / ‑ | ‑ / 14400 s |
| 100% | ‑ / 14400 s | ‑ / ‑ |
| 135% | 120 s / 1800 s | ‑ / ‑ |
| 150% | 20 s / 450 s | ‑ / ‑ |
| 200% | 1 s / 15 s | 1 s / 15 s |
| 350% | 0.3 s / 5 s | 0.5 s / 5 s |
| 600% | 0.1 s / 1 s | 0.1 s / 1 s |
General Technical Parameters
| Item | Parameter |
|---|---|
| Rated Voltage | 125‑250V DC |
| Interrupting Capacity | 6000A @125V DC |
| Housing Material | UL94‑V0 heat‑resistant thermoplastic |
| Terminal Material | Copper‑alloy, tin‑plated |
| Mounting Specification | Dual M8 bolt holes,56 mm centre‑distance; Torque:20.0 Nm ±1 Nm |
| Compliance Standard | ISO 20934‑2019 Special‑Purpose Vehicle Fuses |
| Operating Temperature Range | ‑40℃ ~ +125℃; contact‑point max 150℃ |
Typical Applications
- High‑voltage new‑energy vehicle main battery‑circuit protection for 125‑250V DC systems
- Heavy‑duty truck, engineering‑machinery ultra‑high‑power DC power‑distribution protection
- Large‑size RV, yacht and marine vessel high‑capacity battery‑bank protection
- Grid‑connected and off‑grid energy‑storage main DC‑circuit over‑current & short‑circuit protection
- Special heavy‑duty mobile‑equipment high‑current main‑power‑supply circuits
Pair this high‑voltage heavy‑duty fork bolt‑down automotive fuse with our bolt‑down fuse holders for secure high‑current circuit assembly.
Installation & Selection Notes
- Disconnect main power supply before installation or replacement to prevent accidental short‑circuit hazard.
- Strictly apply mounting torque 20.0 Nm ±1 Nm; insufficient torque will trigger severe over‑heating under ultra‑high‑current working‑condition.
- Select fuse rated‑current to be 1.1‑1.25 times of circuit continuous‑working‑current; never upgrade to higher‑ampere rating arbitrarily.
- Ambient temperature affects actual carrying‑capacity, temperature derating calculation shall be performed for engine‑compartment or closed‑cavity installation.
- Replace only with identical specification fuses to guarantee original circuit‑protection‑performance.
FAQ
Q: What is high‑voltage heavy‑duty fork bolt‑down automotive fuse?
A: High‑voltage heavy‑duty fork bolt‑down automotive fuse is ISO20934‑2019‑compliant dual‑M8 bolt‑mount heavy‑current DC fuse. It provides main‑circuit over‑current and short‑circuit protection for high‑voltage EV, heavy‑duty vehicles, marine and large‑scale energy‑storage DC‑systems up to 250V DC.
Q: What is the rated‑voltage of this heavy‑duty fork bolt‑down fuse?
A: Rated voltage range reaches 125‑250V DC, suitable for high‑voltage new‑energy DC‑power‑net scenarios.
Q: What amp ratings are available for this heavy‑duty bolt‑down fuse?
A: Available amp ratings cover 60A,70A,80A,100A,125A,150A,175A,200A,225A,250A,275A,300A,350A,400A,450A,500A,550A,600A,650A,700A.
Q: What mounting torque and hole‑spacing should I adopt?
A: Dual M8 mounting‑holes with 56 mm centre‑to‑centre‑distance; required tightening torque:20.0 Nm ±1 Nm. Improper torque will lead to contact over‑heating risk under heavy‑load.
Q: Which standard does this high‑voltage heavy‑duty bolt‑down fuse comply with?
A: Complies with ISO 20934‑2019 international special‑purpose vehicle fuse standard.
Q: Does high‑voltage heavy‑duty bolt‑down fuse need temperature derating?
A: Yes. Actual continuous‑current‑carrying‑capacity drops when ambient‑temperature rises. Derating evaluation is essential for confined high‑temperature installation space.
Q: Can you provide bulk‑order and OEM custom‑marking service?
A: Yes, bulk wholesale, laser marking and custom‑packaging services are supported. Please send amp ratings and quantity requirement for datasheet and formal quotation.
Request Quotation & Technical Support
Please inform us required ampere ratings, quantity and application‑background. Our engineering‑team will provide official datasheet, bulk‑price and professional fuse‑selection‑guidance for your high‑voltage heavy‑current DC‑projects.
