Description
OEX ACX3215 4 Way Distribution Block 300A 1x0 B&S Input 3x4 B&S Output Zinc Alloy Nickel Plated
The OEX ACX3215 is a 4-way power distribution block designed to split a single 0 B&S (AWG) input cable into three 4 B&S (AWG) output circuits, rated at 300A continuous. The fixed input/output gauge configuration mirrors real-world high-current installation requirements where a single heavy 0 B&S main feed needs to be distributed cleanly to three separate circuits or devices. Zinc alloy construction with nickel plating for corrosion resistance. ISO 9001 certified manufacturing with in-house testing at OEX's Brisbane facility. Covered by a one year warranty.
Product overview
The ACX3215 addresses a common wiring requirement in high-current automotive and marine installations: a single heavy gauge main feed cable needs to split to multiple individual circuit runs without a separate busbar. The 1x0 B&S input accommodates the heavy gauge main feed from a battery, busbar or fuse block, while the three 4 B&S outputs connect directly to individual devices or circuit cables without additional adaptors or reducers. This suits high-powered amplifier power distribution, dual battery auxiliary systems, large inverter sub-distribution and 4WD multi-accessory circuit splits.
The 300A continuous rating covers the combined total current across all three output circuits simultaneously. Individual circuit current draws should be matched to appropriate cable gauges and fusing on each 4 B&S output run. The ACX3215 does not include built-in fusing — each output should be individually fused as close to the distribution block as practical, and the main input feed should be protected with an appropriately rated fuse or ANL fuse holder close to the battery. Zinc alloy construction with nickel plating provides a rigid, vibration-resistant housing with good corrosion resistance for automotive, marine and off-road applications.
Features and benefits
1x0 B&S input and 3x4 B&S output configuration: Dedicated fixed gauge sizing eliminates guesswork during installation. The 0 B&S input accepts the main feed cable and each 4 B&S output connects directly to individual device or circuit cables.
300A continuous rating: Handles the combined load of three 4 B&S output circuits simultaneously without thermal stress at the distribution point.
Zinc alloy with nickel plating: Rigid, vibration-resistant housing with corrosion resistance for automotive, marine and harsh outdoor applications.
Compact self-contained distribution point: Avoids the need for a separate busbar in three-output installations, reducing component count and keeping wiring organised in tight spaces.
No built-in fusing: Passive distribution block only. Each output circuit should be individually fused, and the input feed should be protected with an appropriately rated fuse or ANL fuse holder.
ISO 9001 certified manufacturing: In-house product testing at OEX's Brisbane facility.
One year warranty: Covered by a one year OEX warranty.
Technical specs
| Specification |
Detail |
| SKU |
ACX3215 |
| Brand |
OEX |
| Configuration |
4 Way (1 in, 3 out) |
| Input |
1x0 B&S (AWG) |
| Output |
3x4 B&S (AWG) |
| Continuous Current Rating |
300A |
| Construction |
Zinc alloy |
| Finish |
Nickel plated |
| Manufacturing Standard |
ISO 9001 certified |
| Testing Location |
In-house, Brisbane, Australia |
| Pack Quantity |
1 |
| Warranty |
One year |
| Sold As |
Single unit |
Frequently asked questions
What does the 1x0 B&S input and 3x4 B&S output configuration mean? The ACX3215 accepts a single 0 B&S (approximately 53mm²) input cable from a battery, busbar or fuse block and splits it into three separate 4 B&S (approximately 21mm²) output cables, each running to an individual device or circuit. This configuration is common in high-powered car audio installations, dual battery systems and 4WD accessory setups where one main feed needs to service multiple high-current devices.
What is the maximum continuous current the ACX3215 can handle? The ACX3215 is rated to 300A continuous the combined total current across all three output circuits simultaneously. Individual circuit current draws should be matched to appropriate cable gauges and fusing on each 4 B&S output run.
Does the ACX3215 include fusing or circuit protection? No. The ACX3215 is a passive distribution block only and does not include built-in fusing or circuit protection. Each output circuit should be individually fused as close to the distribution block as practical, and the main input feed should be protected with an appropriately rated fuse or ANL fuse holder close to the battery.
How does the ACX3215 differ from the ACX3210 and ACX3212 distribution blocks? The ACX3215 has a fixed input/output gauge configuration (0 B&S input, 4 B&S outputs) suited to specific cable size combinations common in high-current installations. The ACX3210 and ACX3212 use stud-type terminals (M8 and M10 respectively) that accept any cable lug size within their current rating. Select the ACX3215 when the installation specifically uses 0 B&S input and 4 B&S output cables; select the ACX3210 or ACX3212 when flexibility in cable gauge is required.
Is the ACX3215 suitable for marine and outdoor use? The nickel-plated zinc alloy construction provides good corrosion resistance for marine, outdoor and underbonnet applications. For best results in marine environments, install in a protected location and terminate connections with tinned copper cable lugs.
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