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The Victron Energy RJ45 Splitter is a compact accessory that turns one RJ45 connection into two. It is built for installers, RVers, off-grid builders, and DIY power enthusiasts who need more than one VE.Bus port in their system. According to the product facts, it is used to connect the MultiPlus 500VA to 1600VA range in parallel and three-phase configurations, as well as in other installations where multiple VE.Bus ports are required. It is a small part, but if your layout needs one more port and you don't have it, it can hold up the whole project.
Think of this Victron RJ45 splitter as the friendly traffic director of your wiring. It doesn't generate power or store energy. It gives your VE.Bus cabling the extra connection point it needs, so your system comes together the way you planned it.
The splitter has a single RJ45 male connector on one end and two RJ45 female ports on the other. You plug the male end into your existing connection and gain two ports to work with. It is a simple layout, and simple is a good quality in electrical wiring.
A short 15 cm cable sits between the male plug and the two female ports. That gives you a little flexibility when positioning the splitter, instead of forcing it to sit directly against a device. Because the cable is short, plan your layout carefully so the splitter has a convenient spot near the connection point.
Victron lists this splitter for connecting the MultiPlus 500VA to 1600VA range in parallel and three-phase configurations. If you are building a system with more than one inverter/charger, the splitter helps provide the extra VE.Bus ports those configurations call for.
The listed dimensions are 0.79 x 7.87 x 3.94 inches, which makes this an easy accessory to tuck into an equipment bay, utility closet, or van cabinet. Compact parts are a gift when every inch of wall space is already spoken for.
The splitter's job is the same in every setting, which is to give a VE.Bus-based system more connection points. Where you use it depends on the system you are building.
The most common alternative is working with the VE.Bus ports you already have. For a single-unit system, that is often all you need, and a splitter is not required. It becomes useful when your configuration calls for more ports than your devices provide, such as the parallel and three-phase MultiPlus arrangements named in the product facts.
You may also see generic RJ45 splitters sold for other purposes. This one is a Victron Energy accessory listed for VE.Bus applications. If you are considering a different splitter, confirm that it is intended for VE.Bus use before you install it. Matching the part to the system is much easier than troubleshooting a mismatch later.
This is a specialist accessory, and the best way to shop for it is to start with your system diagram. Count the VE.Bus ports you need, then compare that number to the ports you have available.
This May Be A Good Fit If
Before you order, confirm that your exact devices and configuration are compatible. The product facts do not cover compatibility beyond the use cases above, so check Victron's documentation for your models. The splitter does not include any other cables or accessories, so make sure you have the rest of the cabling your system requires.
It splits one RJ45 male connection into two RJ45 female ports using a 15 cm cable. It is used where multiple VE.Bus ports are required.
It is used to connect the MultiPlus 500VA to 1600VA range in parallel and three-phase configurations, or in other installations where multiple VE.Bus ports are required. For any other model, confirm compatibility before purchase.
The cable between the male plug and the two female ports is 15 cm.
No additional cables are listed with this product. You will need to confirm and source any other cabling your system requires.
The best power systems are often made reliable by their small parts. A properly matched splitter helps your parallel or three-phase setup go together the way it was designed, which supports long-term performance and peace of mind. At Outbound Power, we focus on the practical details of backup power, RV power, and off-grid planning, so you can build a system that works for your needs. Choose Outbound Power as your knowledgeable partner, and let us help you get the right pieces in place.
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