Victron Energy ORI241236140 Orion-Tr Smart 24/12-30A (360W) Non-isolated DC-DC Charger

Victron Energy Orion-Tr Smart 24/12-30A 360W of Managed 12V Charging from a 24V System. Non-Isolated.

Product Overview

The Victron Energy Orion-Tr Smart 24/12-30A (ORI241236140) is a professional-grade non-isolated DC-DC charger rated at 30 amps and 360 watts, designed to correctly charge a 12V secondary battery bank from a 24V primary source. This is not a basic DC-DC converter outputting a fixed 12V rail it is a true adaptive 3-stage charger, delivering Bulk, Absorption, and Float stages to both lead acid and lithium battery chemistries via eight pre-programmed profiles and a fully custom algorithm configurable through the VictronConnect app over built-in Bluetooth.

The distinction matters because a fixed-voltage converter applies whatever output voltage it is set to it does not adapt to battery state, manage absorption time, or transition to float when the battery is full. The Orion-Tr Smart does all three, protecting the secondary 12V battery from overcharge and undercharge over the long term. The non-isolated topology shares a common ground between the 24V input and 12V output  appropriate for the majority of 24V primary / 12V secondary dual battery systems where galvanic isolation is not a requirement, and delivering better efficiency than an isolated equivalent at the same output rating. Built-in engine shutdown detection prevents the charger from drawing down the 24V starter battery when the alternator is off, with IP43 protection, full output to 40°C, and unlimited parallel expansion rounding out a capable, field-proven platform.

Key Specifications

• Part Number: ORI241236140
• Charger Type: Non-isolated DC-DC adaptive 3-stage charger (step-down)
• Input Voltage: 24V DC nominal
• Output Voltage: 12V DC
• Output Current: 30A
• Output Power: 360W
• Conversion Direction: Step-down — 24V input to 12V output
• Isolation: Non-isolated — input and output share common ground
• Charge Algorithm: Adaptive 3-stage — Bulk, Absorption, Float
• Battery Profiles: 8 pre-programmed + fully programmable
• Battery Compatibility: Lead acid (all types) and lithium
• Bluetooth: Built-in (VictronConnect app — iOS and Android)
• Smart Alternator Compatible: Yes — engine running detection
• Remote On/Off: Yes — hardwired connector and VictronConnect app
• IP Rating: IP43
• Parallel Operation: Yes — unlimited units
• Operating Temperature: Full rated output to 40°C; operates to 55°C with thermal derating
• Protection: Over-temperature with power derating, overload, short circuit, connector over-temperature

Features & Benefits

• DC-DC Charger, Not a Converter — The Distinction That Matters — A DC-DC converter delivers a fixed output voltage. The Orion-Tr Smart 24/12-30A delivers a managed charge profile — Bulk, Absorption, and Float — that adapts to the secondary battery's state of charge and chemistry. The result is a correctly charged 12V battery every time the engine runs, rather than a fixed voltage applied regardless of whether the battery needs 2 amps or 30 amps.
• Non-Isolated Step-Down — 24V to 12V — Steps the 24V primary source down to charge a 12V secondary battery with a shared common ground between input and output. Higher efficiency and simpler installation than a galvanically isolated equivalent — and the correct topology for 24V primary / 12V secondary dual battery systems where ground separation is not required. For applications where isolation is needed, refer to the Orion-Tr Smart Isolated range.
• Adaptive 3-Stage Charging — Bulk, Absorption, Float — Bulk delivers maximum available current to rapidly recharge the 12V battery. Absorption holds at the correct absorption voltage while current tapers — with adaptive absorption time that shortens for shallow discharges and extends for deep discharges on lead acid, and a fixed 2-hour default for lithium. Float maintains a fully charged battery at a safe holding voltage, with a new charge cycle triggered automatically if battery voltage drops substantially under load for more than one minute.
• Eight Pre-Programmed Battery Profiles + Custom Algorithm — Select the correct charge profile for your 12V secondary battery from eight factory presets covering lead acid (flooded, AGM, gel) and lithium chemistries via the VictronConnect app — or configure a fully custom algorithm for non-standard specifications. Profile switching requires no hardware changes.
• Smart Alternator Compatibility — Engine Running Detection — Monitors whether the 24V alternator is actively supplying power and disables itself when it is not, preventing the charger from drawing down the 24V starter battery during engine-off periods or low-output smart alternator phases. No CAN-bus intervention or separate engine sensor required.
• Built-in Bluetooth — VictronConnect App — Monitor real-time charge status, configure battery profiles, adjust parameters, and update firmware wirelessly via any iOS or Android device. Full monitoring and configuration in the field without additional hardware.
• Remote On/Off — Hardwired and App-Controlled — Enable and disable the charger via a hardwired remote switch, relay contact, BMS output, or directly through the VictronConnect app. Supports manual user control and automatic BMS-driven charge management for lithium secondary battery systems.
• Unlimited Parallel Operation — Connect additional ORI241236140 units in parallel to scale charging current beyond 30A — 60A with two units, 90A with three. Each unit operates its own charge algorithm independently.
• IP43 Rated — Protected against solid objects greater than 1mm and water spray up to 60° from vertical. Suitable for enclosed panels, protected under-bonnet spaces, and marine compartment installations.
• Over-Temperature Protection with Power Derating — Output current reduces progressively at high ambient temperatures. Full 30A output is sustained to 40°C; operation continues to 55°C with derating — maintaining partial charging in hot engine bays and confined spaces without damaging the unit.
• Connector Over-Temperature Protection — Independent protection for the terminal connections against heat buildup under sustained high-current operation — particularly relevant at 30A continuous output.

Technical Specs