Ess Fuse Bolt-Down High Current Fuse Series: ANL-B150BSF51, ANL-B150SF39, ANL-B200ASF56 Specs, Installation & Industrial Applications
In heavy-duty DC electrical systems including new energy vehicles, energy storage battery packs and construction machinery, overcurrent protection is the core safety barrier. Bolt-down high current fuses are the most widely adopted protective component due to stable connection, high breaking capacity and strong vibration resistance. Ess Fuse develops three mainstream bolt-mounted fuse models: ANL-B150BSF51, ANL-B150SF39 and ANL-B200ASF56, covering 100A–800A current range and 125V/150V/175V dual voltage ratings. This article sorts out full specifications, selection standards, installation tips and typical application scenarios of three series bolt-down Ess fuses, helping electrical engineers and bulk purchasers quickly pick matching models.
Core Parameter Comparison of 3 Ess Fuse Bolt-Down Models
All three products adopt bolt fixed structure, eliminating loose contact and overheating risks under long-term high-current operation. The detailed parameter table below covers rated current, voltage, shell material and applicable load:
| Model | Current Range | Rated Voltage | Mount Type | Core Advantage |
|---|---|---|---|---|
| ANL-B150BSF51 | 100A-700A | 125V DC / 150V DC | Bolt-Down | Dual voltage design, compact size for light EV battery |
| ANL-B150SF39 | 100A-800A | 150V DC | Bolt-Down | Wider current range, heavy truck & energy storage main circuit |
| ANL-B200ASF56 | 100A-700A | 150V DC / 175V DC | Bolt-Down | Higher voltage resistance, large energy storage cabinet |
ANL-B150BSF51 Ess Fuse supports dual 125V and 150V working voltage, covering most low-speed electric vehicles, golf carts and small energy storage modules. ANL-B150SF39 expands maximum current to 800A, suitable for heavy commercial vehicles and medium-sized battery energy storage systems. ANL-B200ASF56 upgrades voltage to 175V, specially customized for high-voltage energy storage power distribution cabinets. All series adopt high-purity fuse element and flame-retardant plastic shell, meeting RoHS automotive industry standards.
What Is ANL-B150BSF51 Ess Fuse? 100A-700A 125V/150V Bolt-Down Fuse Introduction
ANL-B150BSF51 is a cost-effective bolt-down Ess Fuse designed for medium and small DC high-current circuits. Its current specification covers 100A, 150A, 200A, 300A, 400A, 500A, 600A, 700A, with dual voltage 125V and 150V to adapt to multi-brand battery pack voltage platforms.
Key Design Features of ANL-B150BSF51
- Bolt connection terminal with 304 stainless steel bolt, low contact resistance, no heat accumulation under continuous high current
- Transparent protective cover, real-time visual inspection of fuse working status
- High arc suppression medium inside, excellent breaking capacity for short-circuit fault
- Small overall dimension, easy to install in compact battery box space
ANL-B150SF39 100A-800A 150V High Current Bolt-Down Fuse Full Specs
ANL-B150 Series is Ess Fuse’s mainstream heavy-duty bolt fuse, the only model reaching 800A rated current in the ANL bolt-down lineup. Single 150V DC voltage rating simplifies circuit matching for heavy equipment manufacturers.
Main Application Scenarios for ANL-B150SF39
- Heavy-duty electric trucks, mining machinery, construction equipment main power circuit
- Medium and large energy storage battery cluster output protection
- Low-voltage industrial power distribution cabinet high-current branch protection
- Marine DC power system, off-grid solar energy storage equipment
ANL-B200ASF56 100A-700A 150V/175V Bolt-Down Ess Fuse High Voltage Version
For energy storage systems with higher bus voltage, Ess Fuse launches ANL-B200ASF56 dual 150V/175V bolt-down fuse. Compared with ANL-B150BSF51 and ANL-B150SF39, its internal insulation structure is optimized to bear higher instantaneous voltage impact, effectively reducing fuse burnout risk during battery charge and discharge surge.
Large-scale energy storage manufacturers prefer ANL-B200ASF56 for cabinet main circuit protection, as its 175V voltage rating leaves sufficient margin for peak voltage fluctuation of lithium iron phosphate batteries.
Standard Installation Guide for All Ess Fuse Bolt-Down Models
All three series share unified bolt mounting operation standards, wrong installation will cause overheating and premature fuse failure:
- Clean busbar and fuse terminal surface to remove oxide layer before installation
- Use matching 304 stainless steel bolts, torque controlled at 8–12 N·m
- Do not over-tighten bolts to crack plastic shell; loose torque will cause contact heating
- Install transparent protective cover after wiring to avoid short circuit caused by metal debris
- Reserve heat dissipation space around the fuse, not sealed in fully enclosed narrow box
How to Choose Between ANL-B150BSF51, ANL-B150SF39 and ANL-B200ASF56
Follow 3 core selection rules to match the correct bolt-down Ess Fuse model:
- Confirm system rated voltage: ≤125V choose ANL-B150BSF51; fixed 150V heavy load pick ANL-B150SF39; 150V–175V high voltage storage use ANL-B200ASF56
- Check maximum continuous current: over 700A must select ANL-B150SF39 (up to 800A)
- Working environment: high vibration heavy truck priority ANL-B150SF39; compact battery box use ANL-B150BSF51
FAQ About Ess Fuse Bolt-Down High Current Series
Can ANL-B150BSF51 replace ANL-B200ASF56 directly?
Not recommended. ANL-B150BSF51 maximum voltage is 150V, cannot bear 175V system voltage, long-term use will lead to thermal aging and safety hazards.
Are all three models available with technical datasheet?
Yes. Ess Fuse provides complete dimension drawing, electrical curve, breaking capacity test report for ANL-B150BSF51, ANL-B150SF39 and ANL-B200ASF56. Contact our technical team to download free PDF datasheets.
What is the service life of bolt-down Ess fuses under normal load?
Under rated current and standard temperature environment, the service life can reach more than 5 years; frequent overcurrent startup will shorten service life to 2–3 years.
Final Summary & Purchase Guide
Ess Fuse three bolt-down high current fuse series cover full demand of low-voltage DC heavy load protection: compact dual-voltage ANL-B150BSF51 for light EV, wide current ANL-B150SF39 for heavy machinery, high voltage ANL-B200ASF56 for large energy storage cabinets. All products pass strict short-circuit and temperature rise test, support bulk OEM customization.
If you need to confirm model current specifications, download datasheet or get bulk quotation, visit our ANL bolt-down fuse product page, or send your circuit parameter demand to our sales engineer for one-on-one matching solution.
Internal links:
- ANL-B150BSF51 Product Page: https://essfuse.com/product/anl-b150bsf51-bolt-down-fuse/
- ANL-B150SF39 Product Page: https://essfuse.com/product/anl-b150-series-high-current-bolt-down-fuse/
- ANL-B200ASF56 Product Page: https://essfuse.com/product/anl-b200asf56-bolt-down-ess-fuse/
A leading Chinese manufacturer of energy-storage fuses, we offer a one-stop solution including fuses, fuse holders, automotive fuses, high-speed fuses, and more.