JL Audio JLA-010-13685-00 XMD-MCB-80 80 Amp Marine Circuit Breaker

IP67-rated marine circuit breaker with manual reset design—eliminates fuse replacement while providing 80 amp overcurrent protection for demanding boat electrical systems.

Product Overview

The JL Audio XMD-MCB-80 is an 80 amp resettable circuit breaker engineered specifically for marine electrical installations. Unlike traditional blade fuses that require replacement after every fault, this unit features a manual reset switch with high-visibility indicator that simply flips back after an overload event clears. IP67 waterproof certification means the breaker survives full submersion up to 1 metre deep, while SAE J1171 External Ignition Protection approval permits installation in engine compartments and fuel tank spaces where explosive vapours may be present. Stainless steel M6 threaded studs resist saltwater corrosion far better than brass or tin-plated copper terminals. Ideal for protecting high-current marine audio amplifiers, windlass motors, live well pumps, and other 12V DC equipment drawing up to 80 amps continuous.

Key Specifications

• Current rating: 80 amps continuous
• Reset type: Manual with high-visibility switch
• Waterproof rating: IP67 (submersible to 1 metre for 30 minutes)
• Ignition protection: SAE J1171 certified for engine compartments
• Terminal type: Stainless steel M6 × 1 mm threaded studs
• Voltage: 12V DC (typical marine/automotive applications)
• Mounting: Surface mount with bracket holes
• Part number: JLA-010-13685-00
• Package weight: 0.18 kg (0.4 lbs)

Features & Benefits

Manual Reset Eliminates Fuse Replacement
High-visibility toggle switch resets the breaker after an overload clears—no need to carry spare fuses or diagnose whether a fuse has blown. Saves money on consumables and reduces downtime during fishing trips or offshore runs.

IP67 Full Submersion Protection
Sealed to withstand complete immersion up to 1 metre deep for 30 minutes—critical for installations in bilge areas, wet storage compartments, or deck-mounted battery boxes where splash and spray are constant concerns in Australian coastal conditions.

SAE J1171 Engine Compartment Approved
Meets stringent ignition protection standards for installation near fuel tanks, carburettors, and engine blocks where petrol vapours accumulate. This certification is mandatory for legal compliance on many registered vessels and insurance requirements.

Stainless Steel Corrosion Resistance
M6 × 1 mm threaded studs machined from marine-grade stainless steel prevent the galvanic corrosion and oxidation that plague brass terminals in saltwater environments. Maintains reliable electrical contact even after years of exposure to salt spray and humidity.

High-Current Marine Audio Applications
Purpose-built for protecting JL Audio marine amplifiers and other high-wattage 12V equipment. The 80 amp rating suits amplifiers drawing 800–1000 watts RMS, tower speaker systems, or dual-battery setups feeding multiple loads.

Compact Surface-Mount Design
Low-profile footprint fits in tight spaces near battery terminals, distribution blocks, or fuse panels. Pre-drilled mounting holes allow secure installation on bulkheads, battery boxes, or custom fabricated brackets.

Technical Specs

• Amperage rating: 80A continuous
• Voltage rating: 12V DC nominal (suitable for 12–16V systems)
• Reset mechanism: Manual toggle switch
• Switch visibility: High-visibility indicator
• Waterproof rating: IP67 (IEC 60529)
• Ignition protection: SAE J1171 External Ignition Protected
• Terminal studs: M6 × 1 mm thread pitch
• Stud material: Marine-grade stainless steel
• Mounting type: Surface mount with bracket holes
• Package dimensions: 51 mm H × 127 mm W × 203 mm L
• Unit weight: 0.18 kg / 0.4 lbs
• Operating temperature: Not specified

Compatible With / Goes Well With

JL Audio Marine Amplifiers:

• JL Audio MHX-Series mono and multi-channel marine amplifiers
• JL Audio M-Series marine amplifiers (models drawing up to 80A)
• JL Audio VX-Series marine subwoofer amplifiers

Marine Electrical Components:

• Marine battery terminals and distribution blocks
• 4 AWG or 6 AWG marine-grade power cable
• Battery isolators and dual-battery systems
• Windlass motors (up to 80A draw)
• Live well pumps and bilge blowers

Installation Hardware:

• M6 stainless steel nuts and washers
• Marine heat-shrink ring terminals (4–6 AWG)
• Cable glands and waterproof grommets
• Surface-mount battery boxes or fuse panels

Note: Verify your amplifier or equipment's maximum current draw does not exceed 80 amps continuous. For higher loads, consider JL Audio's 150A or 200A breaker models.

Weight

0.18 kg (0.4 lbs)

Frequently Asked Questions

What size wire do I need for an 80 amp breaker?

Australian Standards AS 3000 recommends 6 AWG (13.3 mm²) copper cable for 80 amp loads in marine applications, though 4 AWG (21.2 mm²) is preferable for longer runs to minimise voltage drop. Always use marine-grade tinned copper cable with proper crimped ring terminals.

Can I install this breaker in my engine compartment?

Yes, the SAE J1171 External Ignition Protection certification specifically permits installation in engine compartments, fuel tank spaces, and other areas where explosive petrol vapours may accumulate. This is a legal requirement for many marine applications in Australia.

How do I reset the breaker after it trips?

The high-visibility toggle switch flips to the "off" position when an overload occurs. Wait 30 seconds for the internal bimetallic element to cool, verify the fault is cleared (e.g., amplifier short circuit resolved), then flip the switch back to "on" position.

Is this breaker suitable for 24V systems?

No, the XMD-MCB-80 is designed for 12V DC nominal systems (typical range 12–16V with charging). For 24V applications, consult JL Audio or use dual 12V breakers in series with appropriate voltage ratings.

What's the advantage over standard blade fuses?

Blade fuses are consumable items that must be replaced after every fault—the XMD-MCB-80 simply resets. This saves money on replacement fuses, eliminates the need to carry spares, and provides instant visual indication when a circuit has tripped without requiring a multimeter test.