ANL-B150BSF51 Bolt-Down Fuse DC150V 100-700A UL248-1
ANL-B150BSF51 series bolt-down fuse, DC150V high-current PPS+ceramic fuse (100A-700A), UL248-1 certified, 20kA breaking capacity for energy storage, automotive and DC busbar protection.
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El bolt-down fuse ANL-B150BSF51 series is a high-current DC protection component manufactured by EssFuse (Dongguan Gongfu Electronic). This bolt-down fuse adopts bolt-on stud mounting with high-temperature PPS + ceramic composite housing, delivering reliable overload and short-circuit protection for energy storage battery systems, supercapacitors, new energy vehicles and industrial DC busbars. With stable arc-extinction performance and fast clearing speed, this bolt-down fuse effectively protects power semiconductor devices from surge damage.
Key Features of Bolt-Down Fuse ANL-B150BSF51
- Rated DC voltage: 150V; current range: 100A to 700A
- 20kA high short-circuit breaking capacity, adaptable to circuits with L/R ≤ 25ms
- High-temperature PPS + ceramic composite housing for excellent arc quenching
- Compliant with UL248-1 safety standard
- Operating temperature range: -40℃ to +125℃, suitable for harsh outdoor and vehicle environments
- Compact bolt-down structure for easy installation on copper busbars
Under 20kA short-circuit conditions, this bolt-down fuse reduces both melting and arcing energy for faster breaking speed and less impact on power devices. Its overload threshold and voltage drop remain stable, and long-term current-carrying capacity is not affected by short-circuit levels.
Main Electrical Specifications
| Item | Parameter |
|---|---|
| Product Series | ANL-B150BSF51 Bolt-Down Fuse |
| Rated DC Voltage | 150 V DC |
| Rated Current Range | 100A ~ 700A |
| Short-circuit Breaking Capacity | 20 kA, adaptable for L/R ≤ 25ms |
| Compliance Standard | UL248-1 |
| Housing Material | High-temperature PPS + Ceramic |
| Operating Temperature | -40 ℃ ~ +125 ℃ |
| Mounting Type | Bolt-down stud mounting |
| Typical Application | ESS battery, supercapacitor, EV motorcycle, UAV, DC busbar |
I²t Parameter for Each Model
| Part Number | Rated Current (A) | Pre-arcing I²t (A²s) | Arcing I²t (A²s) | Total Clearing I²t (A²s) |
|---|---|---|---|---|
| ANL-B150B100SF51 | 100 | 520 | 260 | 780 |
| ANL-B150B150SF51 | 150 | 980 | 400 | 1380 |
| ANL-B150B200SF51 | 200 | 1650 | 620 | 2270 |
| ANL-B150B250SF51 | 250 | 2600 | 950 | 3550 |
| ANL-B150B300SF51 | 300 | 3750 | 1400 | 5150 |
| ANL-B150B350SF51 | 350 | 5100 | 1900 | 7000 |
| ANL-B150B400SF51 | 400 | 6800 | 2550 | 9350 |
| ANL-B150B450SF51 | 450 | 8250 | 3225 | 11475 |
| ANL-B150B500SF51 | 500 | 10800 | 4000 | 14800 |
| ANL-B150B550SF51 | 550 | 13100 | 4850 | 17950 |
| ANL-B150B600SF51 | 600 | 15600 | 5700 | 21300 |
| ANL-B150B650SF51 | 650 | 18250 | 6550 | 24800 |
| ANL-B150B700SF51 | 700 | 21000 | 7400 | 28400 |
Technical Notes:
- Under 20kA short-circuit condition, the fuse reduces melting and arcing energy simultaneously for faster breaking and less impact on power semiconductor devices.
- Overload threshold and voltage drop remain stable; long-term current-carrying capacity is not affected by short-circuit level.
- Suitable for conventional low-voltage DC busbars, ESS auxiliary circuits and industrial control DC equipment protection.
- Parameters can be directly used for device I²t matching verification when system short-circuit current is within 20kA.
- Stable arc extinction performance for low-voltage scenarios, normally adaptable to circuits with L/R ≤ 25ms.
- Reserve protection margin during selection: total clearing I²t must be lower than semiconductor device withstand limit.
Time-Current Characteristic
| % of Rated Current | Opening Time Min / Max (100A-700A Series) |
|---|---|
| 100% | 4H / ∞ |
| 300% | ~ / 10 S |
Full time-current characteristic curve is available in the official PDF datasheet.
Mechanical Dimensions
| Dimension Item | Value (mm) | Tolerance |
|---|---|---|
| Total Length | 68.8 | ±0.1 |
| Mounting Hole Center Distance | 50.8 | ±0.1 |
| Bolt Hole Diameter | 8.6 | ±0.1 |
| Body Width | 30.0 | ±0.1 |
| Terminal Thickness | 1.0 | ±0.1 |
Application Scenarios
- Energy storage battery systems and ESS auxiliary circuit protection
- Electric motorcycle, new energy tram power distribution
- Supercapacitor module overcurrent and short-circuit protection
- UAV high-current power supply system protection
- Industrial DC control busbar and charging supporting system
- High-current wire harness protection
Installation Notes
Install the bolt-down fuse on flat and clean copper busbars. Tighten mounting bolts with proper torque to avoid poor contact and abnormal overheating. Do not operate beyond rated voltage and current. Regular inspection is recommended for long-running energy storage projects.
ANLB150BSF51-Bolt‑Down-ESS-Fuse-1
Frequently Asked Questions
Q1: What is the rated DC voltage of ANL-B150BSF51 bolt-down fuse?
A1: Rated DC voltage is 150V, with 20kA short-circuit breaking capacity, suitable for DC energy storage and automotive circuits.
Q2: What current ratings are available for this series?
A2: Current range covers 100A to 700A, including 100/150/200/250/300/350/400/450/500/550/600/650/700A models.
Q3: What standard does this bolt-down fuse comply with?
A3: This series complies with UL248-1 standard, with high-temperature PPS + ceramic housing for reliable arc quenching.
Q4: What is the operating temperature range?
A4: Operating temperature ranges from -40℃ to +125℃, adaptable to outdoor ESS, vehicle and UAV harsh environments.
Q5: What is the maximum short-circuit breaking capacity?
A5: Rated short-circuit breaking capacity is 20kA, normally adaptable to DC circuits with L/R ≤ 25ms.
Q6: How to select the correct current rating?
A6: Reserve 1.25-1.6 times safety margin based on continuous working current. Verify that total clearing I²t is lower than semiconductor device withstand limit.
Q7: What mounting method does it use?
A7: Bolt-down stud mounting. Ensure flat contact surface and proper bolt torque to prevent overheating caused by loose connection.
