OEX ACX3145-M10BL 250A Single Stud Terminal M10 - Red

OEX ACX3145-M10BL 250A Single Stud Terminal M10 - Red

Create a robust, high-current connection point for power or earth distribution with the OEX ACX3145-M10BL 250A Single Stud Terminal, featuring a 10mm stainless steel stud rated to 250A, glass-filled nylon base for superior strength and heat resistance, and red colour coding for immediate positive rail identification in automotive, marine, 4WD, caravan, RV, mining, and industrial high-current electrical installations.

Product Overview

The OEX ACX3145-M10BL is the M10 stud variant of the OEX 250A single stud terminal range, providing a larger 10mm stainless steel stud compared to the M8 ACX3145BL for applications requiring heavier gauge cable lugs or greater mechanical connection strength at the terminal mounting point. A single stud terminal serves as a dedicated, surface-mounted connection point where multiple cable lugs from different circuits can be stacked onto a single rated stud, creating a clean shared connection point on a chassis, panel, bulkhead, or battery terminal extension. This approach is widely used in professional automotive and marine electrical builds for joining main earth cables, combining amplifier earth runs, consolidating accessory positive feeds, and creating intermediate connection points along a power distribution run where a full distribution block would be excessive. The larger M10 stud accommodates heavier gauge cable lugs more comfortably than an M8 stud, making the ACX3145-M10BL the preferred choice when running 0 B&S or 00 B&S cables that use larger lug hole sizes, or when a more robust mechanical fixing is required at the terminal point. Rated to 250A continuous, the ACX3145-M10BL handles the combined current of all circuits connected to the stud without thermal stress. The glass-filled nylon base offers significantly greater strength, rigidity, and heat resistance compared to standard nylon, essential for applications near heat sources such as engine bays, amplifier racks, and industrial equipment enclosures. The red colour coding identifies the ACX3145-M10BL as a positive rail terminal at a glance, reducing wiring errors in installations where multiple terminals are used in close proximity. ISO 9001-certified manufacturing and in-house testing at OEX's Brisbane facility ensures consistent quality and long-term reliability.

Features & Benefits

10mm Stainless Steel Stud for Heavy Gauge Applications: The M10 stainless steel stud accommodates larger cable lug hole sizes used with heavy gauge wire including 0 B&S and 00 B&S, providing a more comfortable fit for large lugs compared to M8 studs while delivering the same corrosion resistance and long-term mechanical integrity under vibration and thermal cycling.

250A Continuous Rating for High-Current Applications: Rated to 250A continuous current, the ACX3145-M10BL handles the combined load of multiple stacked cable lug connections simultaneously, suitable for main power feeds, amplifier earth consolidation points, dual battery positive taps, inverter connection points, and high-current accessory distribution in 12V and 24V systems.

Glass-Filled Nylon Base for Superior Strength and Heat Resistance: Glass-filled nylon construction provides significantly greater rigidity, impact resistance, and thermal stability compared to standard nylon, resisting deformation and cracking in high-temperature environments such as engine bays, amplifier enclosures, and industrial equipment where sustained heat exposure is a concern.

Red Colour for Positive Rail Identification: The red base allows instant identification as a positive power terminal, reducing wiring errors in professional installations where multiple terminals are mounted in proximity, particularly valuable when paired with a matching black earth terminal for a clearly colour-coded positive and negative distribution pair.

Multiple Cable Lugs Accepted for Circuit Consolidation: The single M10 stud accepts multiple stacked cable lugs, making the ACX3145-M10BL ideal for consolidating multiple circuit feeds or earth returns at a single rated connection point, a clean and professional alternative to loose earth or power straps in complex electrical builds.

ISO 9001 Certified Manufacturing: Produced under ISO 9001 quality management certification with in-house product testing at OEX's Brisbane facility, ensuring every unit meets stringent engineering and quality control procedures for reliability across automotive, marine, mining, industrial, and RV applications.

Technical Specs

Compatible With / Goes Well With

The OEX ACX3145-M10BL suits 12V and 24V automotive, marine, caravan, RV, 4WD, mining, and commercial vehicle electrical systems requiring a dedicated 250A-rated M10 single stud connection point for power or earth distribution. Ideal for heavy gauge cable lug applications using 0 B&S and 00 B&S wire, amplifier earth consolidation, main positive tap-off points, inverter connection studs, dual battery positive feeds, and multi-circuit earth straps in professional electrical builds. Pairs with a matching black M10 single stud terminal for a colour-coded positive and negative terminal pair. The M8 variant ACX3145BL is available for lighter gauge applications. Complements OEX distribution blocks, ANL fuse holders, busbars, and battery terminals for complete high-current power management solutions.

Frequently Asked Questions

What is the difference between the ACX3145-M10BL and the ACX3145BL?

Both are OEX 250A red single stud terminals with glass-filled nylon bases, but the ACX3145-M10BL uses a larger 10mm stainless steel stud while the ACX3145BL uses an 8mm stud. The M10 stud accommodates larger cable lug hole sizes used with heavy gauge wire such as 0 B&S and 00 B&S, making it the preferred choice for high-current installations using the heaviest cable gauges. Choose the M10 variant when your cable lugs require a 10mm hole, and the M8 variant for standard lighter gauge applications.

What cable gauges are compatible with the M10 stud?

The 10mm stud accepts cable lugs with a 10mm hole, typically used with heavy gauge wire from 2 B&S through to 00 B&S and beyond in high-current automotive and marine applications. Always match wire gauge to the actual current draw of each circuit and use correctly crimped compression lugs for secure, low-resistance connections.

How many cable lugs can be stacked on the ACX3145-M10BL stud?

The number of cable lugs that can be stacked depends on the thickness of each lug and the available thread engagement length on the M10 stud. In practice, two to four standard automotive cable lugs can typically be stacked safely. The combined current draw of all connected circuits must remain within the 250A continuous rating, and the stud nut must be firmly torqued to maintain secure clamping force across all stacked lugs.

Is the ACX3145-M10BL suitable for marine and outdoor installations?

The stainless steel stud and glass-filled nylon base provide good corrosion and moisture resistance suitable for marine, outdoor, and under-bonnet applications. For best long-term performance in marine environments, use tinned copper cable lugs and apply dielectric grease to stud and lug contact surfaces before assembly to prevent oxidation and galvanic corrosion at the connection points.

Can the ACX3145-M10BL be used as an earth terminal?

Yes. While the red colour coding conventionally identifies a positive terminal, the ACX3145-M10BL can physically be used for either positive or negative connections. For professional installations, standard practice is to use red terminals for positive and black terminals for negative to maintain clear polarity identification and simplify future fault-finding.