{"product_id":"victron-orion-tr-smart-48-12-20a-240w-isolated-dc-dc-charger","title":"Victron Orion-Tr Smart 48\/12-20A (240W) Isolated DC-DC charger - ORI481224120","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Orion-Tr Smart 48\/12-20A (240W) Isolated DC-DC Charger\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Orion-Tr Smart 48\/12-20A is a galvanically isolated DC-DC charger designed to charge a 12V service battery from a 48V source. It is aimed at professional installers working on vehicles, vessels, off-grid systems and industrial applications where two battery banks must remain electrically isolated from one another. The built-in Bluetooth and VictronConnect compatibility make configuration and monitoring straightforward without additional hardware.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e48V input to 12V output with a continuous 20A (240W) output rating.\u003c\/li\u003e\n  \u003cli\u003eGalvanic isolation between input and output, preventing ground loops and protecting sensitive electronics on either battery bank.\u003c\/li\u003e\n  \u003cli\u003eSmart charging algorithm with adaptive 4-stage charge profile: bulk, absorption, float and storage.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in Bluetooth for configuration and real-time monitoring via the VictronConnect app on iOS and Android.\u003c\/li\u003e\n  \u003cli\u003eRemote on\/off input allows the unit to be controlled by an ignition signal or battery management system.\u003c\/li\u003e\n  \u003cli\u003eEngine detection feature prevents excessive discharge of the starter battery by monitoring input voltage.\u003c\/li\u003e\n  \u003cli\u003eSynchronised charging across multiple Orion-Tr Smart units when used in parallel for higher output current.\u003c\/li\u003e\n  \u003cli\u003eWide input voltage range accommodates fluctuating 48V bus voltages common in larger off-grid and vehicle systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Orion-Tr Smart range uses a high-frequency transformer to provide full galvanic isolation between the input and output circuits. This is particularly important in dual-battery vehicle installations and marine applications, where a direct connection between two battery banks can introduce ground faults or corrosion caused by stray currents. The isolation also means the unit can be used to step down voltage across systems with separate earthing arrangements.\u003c\/p\u003e\n\n\u003cp\u003eThe smart charging capability sets this unit apart from a basic DC-DC converter. Rather than simply regulating output voltage, the Orion-Tr Smart applies a proper multi-stage charge profile to the service battery, extending battery life and ensuring a full charge is reached. Battery type and charge parameters are fully configurable via VictronConnect, supporting lead-acid (AGM, gel, flooded) and lithium (LiFePO4) chemistries. When used alongside a Victron BMS, the unit can receive charge enable\/disable signals directly, making it compatible with managed lithium battery systems.\u003c\/p\u003e\n\n\u003cp\u003eMultiple units can be connected in parallel and synchronised via Bluetooth to deliver higher combined output current where a single 240W unit is insufficient. This avoids the need to step up to a larger, more expensive unit when only a modest increase in capacity is required.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: ORI481224120\u003c\/li\u003e\n  \u003cli\u003eInput voltage: 48V nominal\u003c\/li\u003e\n  \u003cli\u003eOutput voltage: 12V nominal\u003c\/li\u003e\n  \u003cli\u003eOutput current: 20A continuous\u003c\/li\u003e\n  \u003cli\u003eOutput power: 240W\u003c\/li\u003e\n  \u003cli\u003eIsolation: Galvanic (high-frequency transformer)\u003c\/li\u003e\n  \u003cli\u003eCommunication: Bluetooth (VictronConnect)\u003c\/li\u003e\n  \u003cli\u003eWeight: 1.21 kg\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076066149\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCharging a 12V leisure or service battery from a 48V house bank in large motorhomes, coaches or specialist vehicles.\u003c\/li\u003e\n  \u003cli\u003eMarine dual-battery systems where galvanic isolation is required to prevent corrosion and ground loops.\u003c\/li\u003e\n  \u003cli\u003eOff-grid cabins and industrial installations with a 48V DC bus needing a regulated 12V supply for ancillary loads or a secondary battery.\u003c\/li\u003e\n  \u003cli\u003eTelecom and industrial enclosures requiring a stepped-down, isolated 12V supply from a 48V rack battery system.\u003c\/li\u003e\n  \u003cli\u003eLithium battery systems managed by a Victron BMS, where charge control via remote on\/off is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Victron Orion-Tr Smart 48\/12-20A (240W) Isolated DC-DC Charger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eInstallation should be carried out by a qualified electrician or experienced system integrator familiar with DC power systems. Ensure correct fusing on both the input and output cables in accordance with the wire gauge used and the unit's rated current. The remote on\/off terminal should be connected to an ignition-switched signal or BMS charge enable output where engine detection alone is not sufficient. For marine installations, follow NMEA and flag-state wiring standards. This unit is not intended for grid-connected AC applications.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":59863717347662,"sku":"ORI481224120","price":123.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_ORI481224120_-_Orion-Tr_Smart_48-12-20A_240W_Isolated_DC-DC_charger.webp?v=1781183673","url":"https:\/\/voltaconsolar.com\/products\/victron-orion-tr-smart-48-12-20a-240w-isolated-dc-dc-charger","provider":"VoltaconSolar","version":"1.0","type":"link"}