Ceramic Car Fuse ANL/B30BSF51 | Mega Bolt-Down Fuses for Automotive Circuits

Shop reliable ANL/B30BSF51 mega bolt-down ceramic car fuses for vehicle battery, alternator and heavy-duty circuit protection. High current rating, durable ceramic housing, stable bolt-down installation, wide application for cars, trucks and industrial vehicles.

Description

Ceramic Car fuse ANL/B30BSF51 Bolt Fuse

1. Dimensions (mm)

Dimensions

2. Specifications

Shell: Ceramic high temperature resistant

Terminal: Copper alloy, gal. Sn 2 x M8 bolts, Distance 51 mm

Mounting Torque: 12.0 Nm +/- 1Nm

Breaking Capacity: 70Vdc

Complies with: ISO 20934 Special Purpose Fuses

Operating Temperature Range: -40˚C to +125˚C (The maximum allowable temperature is 150˚C at the contact point)

3. Time-Current Characteristics
% of Rating Opening Time Min / Max (s)
80A – 250A 300A – 650A
75 – / – 14400
100 14400 – / –
135 120s / 1800s – / –
200 1s / 15s 1s / 15s
350 0.300s / 5s 0.500s / 5s
600 0.100s / 1s 0.100s / 1s

1: Not mentioned in ISO standards

2: Short circuit protector only

3: Maximum pressure drop range according to ISO standards

4. Ratings
TYPE Rating Current (A) Typ Voltage drop
ANL-B30B040 40A ≤110mV
ANL-B30B050 50A ≤110mV
ANL-B30B060 60A ≤110mV
ANL-B30B070 70A ≤110mV
ANL-B30B080 80A ≤110mV
ANL-B30B100 100A ≤110mV
ANL-B30B125 125A ≤110mV
ANL-B30B150 150A ≤110mV
ANL-B30B175 175A ≤110mV
ANL-B30B200 200A ≤110mV
ANL-B30B225 225A ≤110mV
ANL-B30B250 250A ≤110mV
ANL-B30B275 275A ≤80mV
ANL-B30B300 300A ≤80mV
ANL-B30B350 350A ≤80mV
ANL-B30B400 400A ≤80mV
ANL-B30B450 450A ≤80mV
ANL-B30B500 500A ≤80mV
ANL-B30B550 550A ≤80mV
ANL-B30B600 600A ≤80mV
ANL-B30B650 650A ≤80mV
Our ANL/B30BSF51 mega bolt-down ceramic car fuses are professional high-current circuit protection components specially designed for automotive electrical systems. Adopting high-strength ceramic housing, this series of fuses integrate the advantages of ANL standard and B30BSF51 specification, with stable bolt-down mounting structure, providing safe and reliable overload and short-circuit protection for vehicle batteries, alternators, wire harnesses and other key electrical parts.

Core Features & Advantages

  1. Premium Ceramic Housing

    The fuse body is made of high-temperature resistant ceramic material, featuring excellent insulation, heat dissipation and flame retardant performance. It can adapt to harsh automotive working environments (-40℃ to 125℃), avoid deformation, aging and damage caused by high temperature or vibration, and extend the service life of the fuse.

  2. Stable Bolt-Down Installation

    Designed with standard bolt-down mounting structure (M6/M8 bolt optional), it realizes firm and stable fixed installation, effectively preventing loose contact and poor circuit connection caused by vehicle vibration. It is easy to install and replace, suitable for various automotive modification and maintenance scenarios.

  3. High Current Protection Performance

    Complying with automotive fuse industry standards, the ANL/B30BSF51 mega fuse has a wide current rating range (60A-500A) and high breaking capacity, which can quickly cut off the circuit in case of current overload or short circuit, protecting automotive electrical equipment and circuits from damage, and ensuring driving safety.

  4. Standardized Specification Compatibility

    Fully compatible with ANL and B30BSF51 fuse standards, with 51mm standard pitch to avoid wrong replacement with other types of high-current fuses. The color-coded ampere rating design enables quick identification of current specifications, improving installation and maintenance efficiency.

Wide Application Scenarios

This ceramic bolt-down automotive fuse is widely used in various vehicles and electrical systems, including:

  • Passenger cars, SUVs, commercial trucks and off-road vehicles
  • Buses, engineering vehicles and special purpose vehicles
  • Automotive battery systems, alternators and high-power wire harnesses
  • Vehicle modification circuits, audio systems and other high-current electrical accessories

Product Specifications

  • Housing Material: High-temperature resistant ceramic
  • Mounting Type: Bolt-down (stud mount)
  • Voltage Rating: 32V DC
  • Current Range: 60A-500A
  • Operating Temperature: -40℃ to +125℃
  • Compliance: ISO 20934, UL certification standards
  • Terminals: Tin-plated copper alloy, good conductivity and corrosion resistance

Why Choose Our ANL/B30BSF51 Ceramic Bolt-Down Car Fuses?

We focus on the R&D and production of automotive fuses, with strict quality control in every production link. Our ANL/B30BSF51 mega bolt-down ceramic car fuses feature stable performance, high safety factor and strong compatibility, which are ideal choices for automotive circuit protection and electrical system maintenance. We support customized specifications to meet different automotive electrical application needs.
If you are looking for reliable high-current ceramic automotive fuses, our ANL/B30BSF51 bolt-down fuses will fully meet your requirements for safety, durability and stability.