Victron Energy Remote On-Off Cable

Overview

The Victron Energy Remote On-Off Cable is a control interface cable used to match the on/off signal logic between Victron power electronics, battery management systems, chargers, inverters, and selected BatteryProtect units. It is made for remote enable and disable functions in DC electrical systems, not for GPS, radar, antenna, or NMEA data extension.

On a boat, this type of cable is used when a charger, inverter, or protection device needs to respond correctly to a VE.Bus BMS, an MPPT load output, or another compatible control signal. The important detail is signal logic: some Victron equipment needs an active pull-down signal to switch on or off, while other equipment follows a high signal for on and a low or free-floating signal for off.

Matching the correct version to the equipment matters in lithium battery installations, inverter control setups, and charger shutdown circuits. It helps the electrical system follow BMS commands without adding improvised relay wiring where the proper Victron interface cable is the cleaner fit.

Key features

• Remote on/off interface cable range for selected Victron Energy equipment.
• Supports system control links involving VE.Bus BMS, compatible inverters, Skylla chargers, BatteryProtect models, and MPPT load output use cases, depending on the version selected.
• Helps translate signal logic where the source signal and the controlled product do not use the same on/off behavior.
• Useful in marine lithium battery systems where a BMS must disable charging or loads when battery protection limits are reached.
• Correct variant selection helps avoid custom wiring workarounds in DC power installations aboard cruising boats, fishing boats, and refit projects.

Variants

This product is offered in three control-cable configurations. Each version serves a different remote on/off logic requirement, so the correct choice depends on the Victron equipment being connected and the way its remote terminal switches.

The main differences are the cable logic and intended Victron product family. Do not treat the variants as interchangeable unless the connected equipment calls for the same remote on/off behavior.

• ASS030550120: Inverting Remote On-Off cable. This version is used where the controlled product needs an active pull-down on the remote control terminal to switch on, such as selected Phoenix inverters, larger Phoenix inverter models, Multi C, Multi, and Quattro applications that use that control logic.
• ASS030550200: Non Inverting Remote On-Off cable. This version connects VE.Bus BMS control outputs to products such as Skylla-TG chargers and BatteryProtect BP40i, BP60i, and BP200i models, translating the VE.Bus BMS logic to the active pull-down-to-switch-off behavior those products require.
• ASS030550400: Skylla-i Remote On-Off cable. This version is for Skylla-i charger remote control, where a high source signal keeps the Skylla-i on and a low or free-floating signal turns it off.

Compatibility and fit

Use the inverting cable when the controlled device must be pulled down at the remote terminal to turn on. This applies to specific Victron inverter and inverter-charger installations, including examples where an MPPT 75/15 or MPPT 100/15 load output is used as the control source.

Use the non-inverting cable when linking a VE.Bus BMS to compatible Skylla-TG or listed BatteryProtect models that need an active pull-down signal to switch off. This is a common concern in lithium battery systems where the BMS must stop charging or disconnect loads before the battery is pushed outside its safe operating limits.

Use the Skylla-i version for Skylla-i charger control. It suits installations where the charger should stay on when the source signal is high, and switch off when that signal is low or left free floating.

Installation and use on board

Install the cable as part of the low-current control side of the DC power system, following the wiring diagram for the exact Victron device being connected. The cable should be routed away from sharp edges, high-heat areas, and unsupported spans that can move under engine vibration or hull impact.

This range is a practical fit for marine electrical upgrades where Victron equipment is already present and the system needs cleaner automatic control between the BMS, chargers, inverters, or protection devices. It is especially relevant for lithium battery refits, unattended charging control, and inverter shutdown logic on vessels where battery protection must happen without relying on manual switching.

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