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The Victron Energy Inverting remote on-off cable is a small accessory that solves a very specific wiring puzzle. It is intended for products that require active pull down of the remote control terminal to switch on. Victron lists it for connecting the discontinued Phoenix Inverter 12/180, 24/180, 12/350, or 24/350 to a VE.Bus BMS or to a BlueSolar MPPT charger that has a load output. If you run one of those inverters in an RV, an off-grid cabin, a mobile workstation, or a backup power setup, this cable lets your battery protection or solar controller decide when the inverter runs.
It costs little and takes up almost no room, but it can be the difference between an inverter that follows your system's logic and one you have to babysit. Think of it as the polite messenger between two devices that otherwise speak different dialects.
Not every remote on-off input works the same way. Some inverters need the remote control terminal actively pulled down before they will turn on. This inverting remote on-off cable is intended for exactly those products, so the signal from your BMS or charger is the signal the inverter expects.
When the cable links a compatible Phoenix inverter to a VE.Bus BMS, the inverter will be switched off when the batteries are empty. For lithium battery systems, that means your battery management system can step in and turn the inverter off, rather than relying on you to notice a low battery in time.
Victron notes that connecting an inverter directly to the load output of a BlueSolar MPPT charger is not possible. The inverter has to be connected to the battery. This cable gives you the workaround: wire the inverter to the battery, then use the cable to switch it on and off with the charger's load output.
This is a simple cable accessory with no extra hardware to mount or power. That suits the cramped compartments, battery bays, and equipment cabinets common in RVs and mobile installations. Confirm the cable's routing and length against your layout before ordering.
This cable only matters if you own one of the specific Phoenix inverters listed above, which makes it a targeted fix rather than a general-purpose upgrade. For those owners, here is where it can earn its keep.
The most common alternative is switching the inverter by hand. That works, but it relies on you remembering to turn it off before the batteries run flat. Letting a VE.Bus BMS or a charger's load output handle that job removes the human factor.
Another idea is to wire the inverter straight to the load output of a BlueSolar MPPT charger. Victron states this is not possible, so the battery-connected approach with this cable is the route to use. And if your inverter is not one of the four models listed above, a different remote on-off solution may be the better fit.
This is a precision part, so the main question is compatibility. It is meant for owners of the discontinued Phoenix Inverter 12/180, 24/180, 12/350, or 24/350 who want to link the inverter to a VE.Bus BMS or a BlueSolar MPPT charger with a load output. Check your inverter model, your BMS or charger, and your wiring plan before purchase. If you are unsure whether your setup matches, the Victron manual for this cable is a good place to confirm details.
This may be a good fit if:
Victron lists it for connecting the discontinued Phoenix Inverter 12/180, 24/180, 12/350, or 24/350. Confirm your exact model before ordering.
It means the cable is intended for products that require active pull down of the remote control terminal to switch on.
No. Victron states that this is not possible. Connect the inverter to the battery, then use this cable to switch it on and off with the charger's load output.
The inverter will be switched off when the batteries are empty.
A good power system is built from many small decisions, and the right cable in the right place keeps the rest of your equipment working the way you planned. The Victron Energy Inverting remote on-off cable helps a compatible Phoenix inverter respond to your BMS or solar charger, so your batteries are better looked after and your setup is easier to live with. At Outbound Power, we focus on practical, well-matched components for home backup, RV, off-grid, and mobile power. If you are planning or upgrading a system, we are glad to be your knowledgeable partner in getting every piece right.
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