Description
OEX ACX3213 300A Single Rail Distribution Block 4x M10 Stainless Steel Terminals Red Tin Plated Copper Bus 48V DC
The OEX ACX3213 is a 300A single-rail distribution block in red, featuring four M10 stainless steel stud terminals on a tin plated copper bus bar, with a nylon base and clear protective cover. The direct red positive counterpart to the black ACX3212 using the two together provides a clean, colour-coded positive and negative distribution pair for a professional installation. All four terminals share a common positive bus, suited to distributing a main positive supply feed across multiple circuits. Rated at 300A continuous and up to 48V DC. Covered by a one year warranty.
Product overview
The ACX3213 accepts one or more incoming positive supply feeds and distributes the current across up to four output circuits via the M10 studs, consolidating multiple positive connections into a single, organised distribution point rather than running individual cables back to the battery or isolator. Driving lights, compressors, inverters, DC-DC chargers and other high-current accessories can each connect to their own dedicated terminal.
As a single-rail block, all four terminals share a common positive bus. It is suited to a dedicated positive supply distribution rail, not combined positive and negative use. Where both polarities are needed in a single unit, the ACX3160 or ACX3162 combined bus bar boxes are the appropriate alternative. Pairing the ACX3213 with the black ACX3212 gives a matched, colour-coded positive and negative distribution pair identical in specification and footprint, differing only in colour. Tin plated copper bus provides low-resistance distribution. Stainless steel terminals and nuts resist corrosion in underbonnet, marine and caravan environments. The clear cover protects connections and allows visual inspection without disassembly.
Features and benefits
300A maximum continuous rating: High-current single-rail distribution for main positive supply circuits. Total combined current across all four terminals must not exceed 300A.
4x M10 stainless steel stud terminals: Accepts M10-compatible ring terminals (10.5mm ID or larger). Stainless steel studs and nuts for long-term corrosion resistance.
Red colour for positive rail identification: Standard colour for positive/supply distribution per automotive convention. Pairs with the black ACX3212 for a matched, colour-coded positive and negative distribution installation.
Tin plated copper bus: Low-resistance current distribution across all four terminals for efficient power transfer.
Nylon base with clear cover: Electrically insulating nylon base. Clear cover protects terminals from accidental contact, dust and moisture while allowing visual inspection without removal.
48V DC maximum operating voltage: Compatible with 12V, 24V and 48V DC systems including lithium battery banks and solar storage installations.
Single-rail configuration: All four terminals on one common positive bus. Not for simultaneous positive and negative use.
One year warranty: Covered by a one year OEX warranty.
Technical specs
| Specification |
Detail |
| SKU |
ACX3213 |
| Brand |
OEX |
| Type |
Distribution Block |
| Colour |
Red |
| Maximum Continuous Current |
300A |
| Maximum Operating Voltage |
48V DC |
| Number of Terminals |
4 |
| Terminal Stud Size |
M10 |
| Terminal Material |
Stainless steel |
| Hardware |
Stainless steel nuts |
| Bus Material |
Tin plated copper |
| Base Material |
Nylon |
| Cover |
Clear |
| Pack Quantity |
1 |
| Warranty |
One year |
| Sold As |
Single unit |
Goes well with
OEX ACX3212, 300A Distribution Block, Black (matching negative/earth counterpart)
OEX ACX3057, Ring Crimp Terminal 10.5mm ID Blue, suits M10 stud, pack of 100
OEX ACX3057BL, Ring Crimp Terminal 10.5mm ID Blue, suits M10 stud, pack of 14
OEX ACX3160, 400A Combined Red/Black Bus Bar Box (for combined positive and negative in one unit)
Frequently asked questions
What is this distribution block used for? The ACX3213 is a single-rail positive supply distribution block. It accepts incoming positive supply feeds and distributes current across up to four output circuits via the M10 studs, consolidating multiple positive connections into one organised point rather than running individual cables back to the battery or isolator.
What is the difference between this and the bus bar boxes (ACX3160, ACX3162)? The ACX3213 is a single-polarity block all four terminals are on the same positive bus. The ACX3160 and ACX3162 are combined units with both a red positive rail and a black negative rail in one enclosure. Select the ACX3213 paired with the ACX3212 for separate, dedicated positive and negative blocks; select the bus bar boxes when both rails are needed in a single unit.
What ring terminal size suits the M10 studs? The M10 studs are 10mm in nominal diameter and require ring terminals with a 10.5mm or larger ID hole. The OEX ACX3057 (10.5mm ID, blue, pack of 100) and ACX3057BL (pack of 14) are suitable options. Always confirm the ring terminal ID matches the stud diameter before purchasing.
What does the clear cover do? The clear cover protects the bus bar and terminal connections from accidental contact, dust and moisture while allowing visual inspection of connection quality without removal particularly useful in enclosed panel installations where periodic checks are needed.
Is a matching black earth distribution block available? Yes. The OEX ACX3212 is the black negative/earth counterpart to this red positive block, identical in specification and designed to be used as a matched pair for a professional, colour-coded positive and negative distribution installation.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & Training
Only authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty Protection
We offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer Support
If you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your Investment
Buying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
