OEX ACX2083BL 30A Mini Manual Reset Circuit Breaker Type 3 Switchable

OEX ACX2083BL 30A Mini Manual Reset Circuit Breaker Type 3 Switchable

Protect high-demand medium-current circuits with the OEX ACX2083BL 30A mini manual reset circuit breaker featuring Type 3 switchable operation for combined circuit protection and isolation, IP66 waterproof and dustproof housing for exposed installation environments, UL 94VO rated thermal plastic housing for fire-resistant safety, SAE J553, J1171, and UL1500 ignition-protected compliance for marine and automotive applications, an extended operating temperature range of -40°C to 85°C for extreme-condition reliability, #10-32 threaded studs with protective insulators accepting 6mm or ¼ inch terminal lugs, and OEX ISO 9001 certified quality built for demanding Australian automotive, marine, and industrial conditions.

Product Overview

The OEX ACX2083BL is the highest-rated single-pack variant in the compact ACX2080 mini circuit breaker series, delivering professional-grade 30-amp overcurrent protection and circuit isolation in the same space-efficient surface mount form factor shared across the range. At 30 amps, the ACX2083BL is the go-to mini breaker for protecting the most demanding circuits a compact breaker is typically asked to handle — including high-current air compressors, electric anchor windlasses, high-draw inverters, dual-battery system feeds, trolling motor circuits, high-power LED light bar installations, and multi-output distribution feeds in automotive, marine, caravan, and 4WD applications where reliable, resettable protection is required in a compact form. The 58.2 x 35.7 x 34.7mm compact dimensions allow installation in electrical panels, switch panels, and confined locations where a full-size 30A heavy duty breaker would be impractical, while the surface mount design eliminates the need for a dedicated housing or enclosure. The switchable Type 3 functionality provides the dual capability of overcurrent protection and manual on/off circuit isolation, enabling deliberate circuit shutdown without requiring a fault event — particularly valuable for high-current systems such as compressors, anchor windlasses, and inverter feeds where operator isolation capability is a safety and convenience requirement. SAE J553, J1171, and UL1500 ignition-protected compliance certifications confirm the ACX2083BL meets recognised international standards for use in fuel-vapour environments on marine vessels. IP66 housing certification provides reliable protection against powerful water jets and complete dust ingress for cockpit, deck, outdoor panel, and exposed equipment installations.

Features & Benefits

30A Type 3 Switchable Manual Reset Combines overcurrent circuit protection with deliberate manual isolation capability at the highest amperage in the compact ACX2080 mini series, handling demanding loads including compressors, windlasses, and high-power light bars without requiring a full-size heavy duty breaker.

Compact Mini Surface Mount Design The 58.2 x 35.7 x 34.7mm form factor fits neatly into electrical panels, switch panels, and confined spaces where standard full-size circuit breakers are too large, simplifying installation in tight locations.

IP66 Waterproof & Dustproof Housing Rated against powerful water jets and complete dust ingress, enabling reliable installation in exposed marine cockpit, deck, outdoor equipment, and under-bonnet panel locations subject to wash-down and environmental exposure.

UL 94VO Rated Thermal Plastic Housing Fire-resistant housing material certified to UL 94VO flammability standard, providing an important safety layer in automotive and marine applications where fire risk from electrical faults must be minimised.

SAE J553, J1171 & UL1500 Compliant Meets recognised international automotive and marine electrical standards including ignition protection certification, confirming suitability for use in fuel-vapour environments such as marine engine bays and enclosed bilge areas.

Extended Operating Temperature Range Rated from -40°C to 85°C for reliable performance across extreme cold and heat conditions encountered in alpine, desert, tropical marine, and industrial mobile equipment applications throughout Australia and beyond.

#10-32 Threaded Studs with Protective Insulators Standard threaded studs accept 6mm or ¼ inch terminal lugs for secure, vibration-resistant connections, with included protective stud insulators maintaining terminal safety and preventing accidental contact.

Technical Specs

Compatible With / Goes Well With

The OEX ACX2083BL is compatible with 12V and 24V DC electrical systems up to 32VDC across passenger vehicles, 4WD, caravans, motorhomes, marine vessels, and light industrial mobile equipment. Well suited to protecting high-current air compressor circuits, electric anchor windlasses, high-power LED light bar installations, small inverter feeds, dual-battery system outputs, trolling motor circuits, and high-demand auxiliary loads up to 30 amps. Also available in 10A, 15A, 20A, 40A, 50A, and 60A single packs for matching protection to specific circuit requirements, with 5-packs available in 40A, 50A, and 60A for multi-circuit panel builds. Pairs well with OEX distribution blocks, OEX switch panels and accessories, OEX wiring harnesses and cable accessories, and OEX terminal connectors and busbars for complete circuit protection and distribution system installations.

Frequently Asked Questions

When should I choose the 30A ACX2083BL over the 20A ACX2082BL for my circuit?

Choose the 30A ACX2083BL when your circuit's continuous current draw exceeds 20 amps or when protecting high-demand loads such as air compressors (typically 15–25A continuous), high-power LED light bars drawing above 16 amps, small inverters up to approximately 360W (12V), electric anchor windlasses, or multi-accessory distribution feeds where combined load approaches 24 amps continuous. Applying the standard 125% sizing rule, the 30A ACX2083BL is the correct choice for any circuit with a maximum continuous draw of up to 24 amps. For circuits drawing above 24 amps continuous, step up to the 40A variant in the ACX2080 series or consider the heavy duty OEX ACX1844 for high-current applications.

Is the 32VDC voltage rating a limitation for 24V system installations?

No. A fully charged 24V lead-acid battery system reaches approximately 28.8V at full charge, and a 24V lithium battery system reaches approximately 29.2V — both well within the 32VDC maximum rating of the ACX2083BL. The 32VDC rating provides an adequate safety margin for all standard 24V automotive, marine, and caravan DC systems. Note that the ACX2083BL is not suitable for 48V systems — for 48V lithium or specialist high-voltage installations, the OEX ACX1844 with its 72VDC rating is the appropriate choice.

What does the UL1500 ignition protection compliance mean for marine installations?

UL1500 is the Underwriters Laboratories standard for ignition protection of marine products. It certifies that the ACX2083BL is designed and tested to not ignite flammable fuel vapours that may be present in marine engine compartments and bilge areas. This compliance is a requirement under many marine safety standards including those referenced by Australian Maritime Safety Authority (AMSA) guidelines, and is an important consideration when installing electrical components in enclosed spaces near fuel tanks, fuel lines, or bilge areas on boats and vessels.

What terminal lug and cable size should I use for the ACX2083BL on a 30A circuit?

The ACX2083BL's #10-32 threaded studs accept terminal lugs with a 6mm or ¼ inch hole. For a 30A circuit, appropriately sized wire — typically 10 AWG / 6mm² for runs up to 3 metres, or 8 AWG / 8mm² for longer runs or installations where minimising voltage drop is critical — terminated with a correctly crimped ring terminal lug is recommended. Always use a ratchet crimping tool for reliable, gas-tight crimps and confirm the lug hole matches the 6mm or ¼ inch stud size for a secure, vibration-resistant termination.

What other amperage options are available in the OEX ACX2080 Mini Circuit Breaker range?

The ACX2080 series is available in single packs across seven amperage ratings: 10A (ACX2080BL), 15A (ACX2081BL), 20A (ACX2082BL), 30A (ACX2083BL), 40A, 50A, and 60A, allowing you to match the breaker precisely to each circuit's requirements. For multi-circuit protection panel builds, 5-packs are also available in 40A, 50A, and 60A ratings. All variants share the same compact Type 3 switchable mini form factor, IP66 rating, and SAE/UL compliance, making it straightforward to standardise on the ACX2080 series across an entire electrical system build.