ANL/B30SF51 Automatic Fuse | Blade & Bolt-Down 30A–500A 32V 58V DC

ANL/B30SF51 automatic fuse: blade & bolt-down dual design, 30A–500A, 32V/58V DC fast-acting. ISO 8820 compliant for automotive, EV, marine, solar circuit protection.

Description

Automotive Fuses ANL/B30SF51 Blade and Bolt Down fuse

1. Dimensions (mm)

Dimensions

2. Specifications

Shell: Housing: Made of thermoplastic material (UL 94-V0, heat resistant) Visible fused components

Terminal: Copper alloy, gal. Sn 2 x M8 bolts, Distance 50.8 mm

Mounting Torque: 12.0 Nm +/- 1Nm

Breaking Capacity: 12V 24V 32V 48V 58V DC

Complies with: ISO 8820-5:2015, UL 248 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)
40A – 250A 300A – 650A
75 – / – 14,400 / ∞
110 14,400 / ∞ – / –
135 120s / 1800s – / –
200 1s / 15s 1s / 15s
350 0.300s / 5s 0.500s / 5s
600 0.100s / 1s 0.100s / 1s

1: Short Circuit Protector only, Products in development – please contact EssFuse for more details regarding availability timing.

2: Voltage Drop measurements for short circuit protectors taken at 75% of rated current.

3: The typical I²t is an average value calculated from the breaking capacity tests by using the melting time before the arcing occurs.

4. Ratings
TYPE Rating Current (A) Typ Voltage drop
ANL-B3040 40A ≤110mV
ANL-B3050 50A ≤110mV
ANL-B3060 60A ≤110mV
ANL-B3070 70A ≤110mV
ANL-B3080 80A ≤110mV
ANL-B30100 100A ≤110mV
ANL-B30125 125A ≤110mV
ANL-B30150 150A ≤110mV
ANL-B30175 175A ≤110mV
ANL-B30200 200A ≤110mV
ANL-B30225 225A ≤110mV
ANL-B30250 250A ≤80mV
ANL-B30275 275A ≤80mV
ANL-B30300 300A ≤80mV
ANL-B30350 350A ≤80mV
ANL-B30400 400A ≤80mV
ANL-B30450 450A ≤80mV
ANL-B30500 500A ≤80mV
ANL-B30550 550A ≤80mV
ANL-B30600 600A ≤80mV
ANL-B30650 650A ≤80mV

Overview

The ANL/B30SF51 is a dual‑design automatic fuse combining blade plug‑in and bolt‑down mounting. It is widely used in automotive, EV, marine, solar and heavy‑duty DC systems. Rated 30A–500A, 32V/58V DC, fast‑acting, ISO 8820 compliant.

Key Specifications

  • Model: ANL/B30SF51
  • Type: Automatic, blade & bolt‑down dual mount
  • Current: 30A, 50A, 80A, 100A, 150A, 200A, 250A, 300A, 400A, 500A
  • Voltage: 32V DC / 58V DC
  • Speed: Fast‑acting
  • Breaking capacity: 2kA DC
  • Standard: ISO 8820, SAE J2077, RoHS

Features

  • Dual installation: blade socket for fast replacement; bolt‑down for high‑current stability
  • Fast‑acting: trips fast under short circuit (6–10× In)
  • High current range: covers most 12V/24V/48V heavy‑duty DC systems
  • Automotive grade: vibration‑resistant, heat‑resistant housing
  • Global standard: ISO 8820 certified, fits mainstream ANL holders

Applications

  • Cars, trucks, commercial vehicles
  • EV / HEV 48V mild hybrid systems
  • Marine / boat DC power systems
  • Solar off‑grid, battery banks
  • Heavy machinery, construction equipment

Installation