OEX ACX6514/50 Midi Fuse Holder 250A 1-Way Inline 50 Pack

Heavy-duty fuse protection for high-current 12V and 24V systems—built to last in the harshest Australian conditions.

Product Overview

The OEX ACX6514/50 is a professional-grade SF30 Midi inline fuse holder engineered for workshops, auto electricians, and fleet operators who demand reliable overcurrent protection in high-amperage applications. Designed for 1-32V DC systems, this single-circuit fuse holder handles loads up to 250A, making it ideal for dual battery setups, inverter installations, winch circuits, and heavy-duty automotive electrical systems. Built with corrosion-resistant stainless steel studs and rated for extreme temperatures from -40°C to +120°C, it's proven to withstand the heat, dust, and vibration of Australian outback conditions. This bulk 50-piece trade pack delivers exceptional value for installers working across multiple vehicles or building custom electrical distribution systems.

Key Specifications

• Maximum current rating: 250A continuous at 1-32V DC
• Type: SF30 Midi fuse holder (inline, 1-way circuit)
• Stud material: Stainless steel for corrosion resistance
• Mounting centres: 30mm stud spacing
• Operating temperature range: -40°C to +120°C
• Pack quantity: 50 units per box
• Compatible with ACX6513 mounting bracket (sold separately)
• Warranty: 12 months manufacturer's warranty

Features & Benefits

250A High-Current Capacity: Handles demanding loads like inverters, winches, and high-output alternators without voltage drop or overheating—essential for modern 4WD dual battery systems and commercial vehicle fitouts.

Stainless Steel Construction: Unlike cheaper brass or plated terminals, stainless studs resist corrosion in coastal environments, under-bonnet heat, and dusty outback conditions, ensuring long-term reliability across Australia's varied climates.

Extreme Temperature Rated: Proven performance from -40°C to +120°C means this holder won't crack in desert heat or fail in alpine cold, making it the choice for touring rigs and remote work vehicles that face temperature extremes.

30mm Mounting Centres: Standard SF30 format with precise 30mm spacing allows secure installation using the optional ACX6513 bracket or custom mounting solutions, giving installers flexibility in tight engine bays or battery boxes.

Trade-Ready Bulk Pack: 50 units per box reduce per-unit costs for workshops, auto electricians, and fleet maintenance teams who install multiple systems—ideal for standardising protection across a vehicle fleet or keeping workshop stock levels high.

Technical Specs

• Model: ACX6514/50
• Fuse type compatibility: SF30 Midi fuses
• Rated voltage: 1-32V DC
• Maximum continuous current: 250A
• Stud material: Stainless steel
• Terminal configuration: 1-way (single circuit)
• Mounting hole spacing: 30mm centre-to-centre
• Operating temperature: -40°C to +120°C ambient
• Number of circuits: 1
• Quantity per pack: 50 pieces
• Product group: Auto electrical accessories, fuses and circuit protection
• Warranty period: 12 months

Frequently Asked Questions

What size Midi fuse does this holder accept?
This holder is designed for SF30 Midi fuses with 30mm mounting centres, commonly available in ratings from 30A to 250A.

Can I mount this holder without the bracket?
Yes, the stainless studs can be bolted directly to a suitable surface, though the ACX6513 bracket provides neater installation and strain relief.

Is this suitable for 24V truck systems?
Absolutely—the 1-32V rating covers both 12V passenger vehicles and 24V commercial/heavy vehicle electrical systems without derating.

Will this handle starter motor or alternator circuits?
Yes, the 250A continuous rating suits high-current alternator feeds, though starter circuits may require higher surge-rated protection depending on engine size.

What's included in the 50-pack?
You receive 50 individual fuse holders (fuses and mounting brackets sold separately), ideal for bulk installs or workshop inventory.

Compatible With:

• SF30 Midi fuses (30A–250A ratings)
• ACX6513 mounting bracket (recommended for secure installation)
• Dual battery systems and battery isolators
• High-output alternators (150A+ systems)
• DC-DC battery chargers
• Inverter installations (1000W–3000W+)
• Electric winch wiring (9000lb–18000lb winches)
• Solar panel charging systems
• Anderson plug installations
• Heavy-duty cable lugs and terminals
• 4WD auxiliary electrical systems
• Commercial vehicle electrical upgrades