Orion-Tr 24V to 12V-20A 240W DC-DC Converter

⚡ ORION-TR 24V TO 12V-20A (240W) DC-DC CONVERTER

24V to 12.5V Non-Isolated DC-DC Converter – 20A Continuous Output, 25A Maximum Output, 97% Efficiency & IP43 Protection

⚡ The Orion-Tr 24V to 12V-20A (240W) DC-DC Converter provides an efficient and compact way to operate compatible 12V equipment from a nominal 24V DC electrical system.

Accepting an input voltage from 18V to 35V DC, the converter provides a regulated 12.5V output with a continuous output-current rating of 20A and a maximum output-current rating of 25A.

Using synchronous rectification technology, the Orion-Tr achieves a supplied efficiency of 97%, helping minimise electrical losses and heat generation in compatible vehicle, marine, industrial and auxiliary-power installations.

Screw-terminal connections simplify installation, while cable up to 6mm² / AWG10 can be accommodated. The unit also provides IP43 protection when installed with the screw terminals oriented downwards.

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⚡ KEY FEATURES

🔌 24V to 12.5V DC Conversion
Designed to operate compatible 12V electrical equipment from a nominal 24V DC supply.

⚡ 20A Continuous Output
Provides up to 20A continuous output current for compatible accessories and electrical equipment.

🚀 25A Maximum Output
Maximum output current is rated at 25A.

🔋 240W-Class Converter
Designed as a compact 240W-class DC-DC voltage converter.

📈 97% Efficiency
High-efficiency synchronous rectification helps minimise power loss during DC voltage conversion.

🔄 Wide 18–35V Input Range
Accepts a broad DC input-voltage range suitable for compatible nominal 24V electrical systems.

🛡️ IP43 Protection
Provides IP43 ingress protection when installed with the screw terminals facing downwards.

🔩 Screw-Terminal Connections
Straightforward screw terminals allow installation without proprietary connector systems.

🔌 Up to 6mm² / AWG10 Cable
Supports a maximum cable cross-section of 6mm² / AWG10.

🌡️ -20°C to +55°C Operating Range
Designed for operation across a broad temperature range when correctly installed.

📏 Compact 73 × 94 × 45mm Size
Compact dimensions make the converter suitable for space-restricted electrical installations.

🪶 Lightweight 0.25kg Construction
Weighs approximately 250g.

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🔌 CONVERT 24V DC TO 12.5V DC

The Orion-Tr is designed for electrical systems where a nominal 24V supply is available but selected accessories or equipment require approximately 12V DC.

Input voltage range: 18V–35V DC

Output voltage: 12.5V DC

This makes the converter suitable for compatible trucks, buses, commercial vehicles, marine systems, machinery and other 24V electrical installations requiring a regulated lower-voltage supply.

⚠️ IMPORTANT: Confirm that the connected appliance or accessory is suitable for operation from a 12.5V DC supply before installation.

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⚡ 20A CONTINUOUS OUTPUT

The Orion-Tr provides a continuous output-current rating of 20A.

Continuous output current: 20A

Maximum output current: 25A

The 20A continuous rating should be used when calculating normal sustained electrical loads.

⚠️ IMPORTANT: The 25A figure is supplied as the maximum output-current rating and should not be treated as the normal continuous operating limit.

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🔋 240W POWER CLASS

The product is identified as the Orion-Tr 24V to 12V-20A (240W) DC-DC Converter.

The supplied electrical specifications list a regulated 12.5V output and 20A continuous output-current capability.

When designing an electrical system, use the supplied output voltage, continuous-current and maximum-current limits rather than relying on wattage alone.

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📈 97% HIGH-EFFICIENCY CONVERSION

The Orion-Tr uses synchronous rectification technology to achieve high DC conversion efficiency.

Supplied efficiency: 97%

The supplied product information also states that full-load efficiency exceeds 95%.

High efficiency helps reduce wasted battery energy and unwanted heat, particularly in vehicle, marine and battery-powered electrical installations.

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🛡️ IP43 PROTECTION

The converter provides IP43 ingress protection when installed with the screw terminals oriented downwards.

Correct mounting orientation is therefore important to achieving the stated protection rating.

⚠️ IMPORTANT: IP43 does not mean waterproof or suitable for immersion. Install the converter in an appropriately protected location.

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🔩 SCREW-TERMINAL CONNECTIONS

The Orion-Tr uses screw terminals for its DC electrical connections.

The supplied product information states that no special tools are required for installation of the screw-terminal connections.

Maximum cable cross-section: 6mm² / AWG10

⚠️ IMPORTANT: Cable size must still be selected according to circuit current, cable length, voltage drop, ambient temperature and circuit-protection requirements.

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🔌 NON-ISOLATED DESIGN

Galvanic isolation: No

The input and output circuits of this converter are not galvanically isolated from each other.

This is important when selecting a converter for electrical systems where input-to-output isolation may be required.

⚠️ IMPORTANT: If the installation requires galvanic isolation between the 24V input system and 12V output circuit, this non-isolated model is not suitable.

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🔋 LOW OFF-LOAD CURRENT

Supplied off-load current: <35mA

This represents the converter's current consumption while powered but not supplying a significant connected load.

For battery-powered systems that may remain unused for extended periods, this standby consumption should be considered as part of the overall power-management strategy.

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🌡️ OPERATING TEMPERATURE RANGE

Supplied operating temperature: -20°C to +55°C

The Orion-Tr is designed to operate across this temperature range when correctly installed and operated within its electrical limits.

⚠️ IMPORTANT: Avoid mounting the converter close to exhaust systems, engines, heaters or other sources of excessive heat.

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🚚 24V TRUCK & COMMERCIAL VEHICLE APPLICATIONS

The Orion-Tr can provide a practical voltage-conversion solution in compatible trucks, buses and commercial vehicles that use a nominal 24V electrical system but require power for selected 12V equipment.

Potential compatible loads can include:

• 💡 12V lighting
• 📡 Communications equipment
• 📱 Electronics and charging accessories
• 🎛️ Control equipment
• 🔌 Selected 12V vehicle accessories
• 🧰 Compatible auxiliary equipment

⚠️ IMPORTANT: Add together the continuous current requirements of all connected equipment and ensure the combined load remains within the 20A continuous rating.

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🚤 MARINE & MOBILE ELECTRICAL SYSTEMS

The Orion-Tr may also suit compatible marine and mobile electrical systems where a nominal 24V supply needs to operate selected 12V accessories.

The complete installation must remain within the converter's input-voltage range, output-current limits, operating temperature range and environmental protection requirements.

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🏗️ INDUSTRIAL & CONTROL SYSTEMS

The broad 18–35V input range and regulated 12.5V output can make the Orion-Tr suitable for compatible machinery, industrial equipment and control systems operating from nominal 24V DC supplies.

Confirm current requirements, voltage compatibility, need for galvanic isolation and installation conditions before use.

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💡 POWER MULTIPLE 12V ACCESSORIES

The 20A continuous output provides useful capacity for running multiple compatible 12V electrical loads from a single nominal 24V supply.

Several lower-current accessories may be connected provided their combined continuous current remains within the converter's 20A rating.

⚠️ IMPORTANT: Always calculate the combined current draw of connected equipment rather than relying on the number of accessories connected.

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🧊 COMPATIBLE 12V REFRIGERATION

The converter may be capable of operating compatible 12V refrigeration equipment where both normal operating current and compressor startup demand remain within the converter's electrical limits.

⚠️ IMPORTANT: Compressor refrigerators can draw substantially more current during startup than during normal operation. Check the appliance manufacturer's current requirements before connection.

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📡 COMMUNICATION & ELECTRONIC EQUIPMENT

The regulated 12.5V output can suit compatible communications, electronic and control equipment designed to operate from an appropriate nominal 12V DC supply.

Always check the equipment's permitted input-voltage range and maximum current consumption before installation.

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🔋 NOT A DEDICATED BATTERY CHARGER

The supplied product information identifies the Orion-Tr as a DC-DC voltage converter with a regulated 12.5V output.

It is not described as a multi-stage battery charger.

⚠️ IMPORTANT: Do not automatically use this converter to charge a 12V AGM, GEL, flooded or lithium battery. Where battery charging is required, use a charger designed for the relevant battery chemistry and charging requirements.

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📏 COMPACT DIMENSIONS

Height: 73mm

Width: 94mm

Depth: 45mm

Weight: Approximately 0.25kg

The compact enclosure makes the converter suitable for integration into appropriately protected electrical panels, cabinets, vehicles and equipment spaces.

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🔧 SUITABLE APPLICATIONS

• 🚚 Compatible 24V trucks
• 🚌 Compatible buses and commercial vehicles
• 🚤 Marine electrical systems
• 🏗️ Industrial equipment
• 🎛️ 24V control systems requiring a 12.5V supply
• 💡 Compatible 12V lighting
• 📡 Communications equipment
• 📱 Low-voltage electronics
• 🔌 Compatible 12V accessories
• 🧊 Compatible 12V refrigeration within current limits
• 🔋 Auxiliary electrical systems

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📋 TECHNICAL SPECIFICATIONS

Product: Orion-Tr 24V to 12V-20A (240W) DC-DC Converter

Converter type: DC-DC voltage converter

Nominal application: 24V to 12V conversion

Input voltage range: 18V–35V DC

Output voltage: 12.5V DC

Continuous output current: 20A

Maximum output current: 25A

Product power designation: 240W

Efficiency: 97%

Full-load efficiency: Greater than 95% according to supplied information

Rectification type: Synchronous rectification

Galvanic isolation: No

Off-load current: <35mA

Operating temperature range: -20°C to +55°C

Ingress protection: IP43 when screw terminals are oriented downwards

DC connection: Screw terminals

Maximum cable cross-section: 6mm² / AWG10

Weight: Approximately 0.25kg

Dimensions: 73mm × 94mm × 45mm

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⚠️ INSTALLATION & COMPATIBILITY CHECKLIST

Before purchasing or installing the Orion-Tr 24V to 12V-20A converter, confirm that it matches the electrical and environmental requirements of your system.

• 18–35V DC input supply
• 12.5V DC output suitable for connected equipment
• Continuous load within the 20A rating
• Maximum-current requirement within the supplied 25A specification
• No requirement for galvanic isolation
• Correct input polarity
• Correct output polarity
• Correct cable sizing
• Maximum 6mm² / AWG10 terminal cable size
• Appropriate input-side fuse or circuit protection
• Appropriate output-side protection where required
• Suitable protected mounting location
• Screw terminals oriented downwards where IP43 protection is required
• Operating temperature within -20°C to +55°C
• Sufficient clearance for installation and heat dissipation

⚠️ IMPORTANT: This converter is non-isolated. Do not use it where galvanic isolation between input and output circuits is required.

⚠️ IMPORTANT: Confirm correct polarity before connection. Incorrect wiring can damage the converter or connected equipment.

⚠️ IMPORTANT: Use appropriately rated circuit protection based on the cable capacity, source capability and intended electrical load.

⚠️ IMPORTANT: Do not exceed the 20A continuous output-current rating during sustained operation.

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❓ FREQUENTLY ASKED QUESTIONS

What does the Orion-Tr 24V to 12V-20A converter do?

It converts a compatible 18–35V DC input supply into a regulated 12.5V DC output for suitable 12V electrical equipment.

Is it designed for 24V systems?

Yes. The supplied 18–35V input-voltage range is designed to suit compatible nominal 24V DC electrical systems.

What is the output voltage?

The supplied output voltage is 12.5V DC.

What is the continuous output current?

The continuous output-current rating is 20A.

What is the maximum output current?

The supplied maximum output-current rating is 25A.

Can I continuously draw 25A?

No. The supplied 25A figure is the maximum output-current rating. Normal sustained loads should remain within the 20A continuous rating.

What power is the converter rated for?

The product is identified as a 240W-class DC-DC converter.

How efficient is the Orion-Tr?

The supplied technical specification lists 97% efficiency.

What is synchronous rectification?

It is the conversion method used by the Orion-Tr to achieve high efficiency. The supplied information states that full-load efficiency exceeds 95%.

What is the input voltage range?

The supplied input range is 18V to 35V DC.

Can it operate from a 12V battery?

No. A nominal 12V battery is below the supplied minimum input voltage of 18V.

Can it operate from a 24V battery?

Yes, provided the battery or electrical system remains within the supplied 18–35V input range.

Can it be used on a 24V truck?

Potentially. Its input-voltage range can suit compatible nominal 24V truck electrical systems, provided the connected 12V loads remain within the converter's output limits.

Can it be used in a bus or commercial vehicle?

Potentially, subject to correct voltage, current, cable sizing, circuit protection and installation requirements.

Can it power 12V lights?

Yes, provided the lights are compatible with a 12.5V supply and the combined current remains within the 20A continuous rating.

Can it run multiple 12V accessories?

Yes, provided the combined continuous current of all connected accessories remains within the 20A continuous output rating.

Can it run a 10A accessory?

Potentially. A 10A continuous load is within the converter's 20A continuous-current capability.

Can it run a 15A accessory?

Potentially. A 15A continuous load is within the supplied 20A continuous-current rating, provided all other installation requirements are met.

Can it run a 20A accessory?

Potentially. A 20A load is at the supplied continuous-current limit, so correct cable sizing, voltage drop, ambient temperature and system protection are particularly important.

Can it run a 12V fridge?

Potentially, provided both the normal running current and compressor startup current remain within the converter's specifications.

Can it run a compressor fridge with a high startup current?

Potentially, provided the startup demand remains within the supplied 25A maximum output capability. Check the refrigerator manufacturer's specifications before connection.

Can it charge a 12V battery?

The supplied information identifies the Orion-Tr as a fixed-output DC-DC converter rather than a multi-stage battery charger. It should not automatically be used as a dedicated battery charger.

Can it charge an AGM battery?

The supplied information does not describe the converter as an AGM battery charger. Use a suitable AGM charger where controlled battery charging is required.

Can it charge a lithium battery?

The supplied information does not describe the converter as a lithium battery charger. Use an appropriate lithium-compatible charger or DC-DC charging system where controlled battery charging is required.

Is the converter galvanically isolated?

No. The supplied specification states that galvanic isolation is not provided.

What does non-isolated mean?

It means there is no galvanic electrical separation between the converter's input and output circuits. A suitable isolated converter should be selected where electrical separation is required.

What type of connections does it use?

The Orion-Tr uses screw-terminal DC connections.

Do I need specialised connection tools?

The supplied product information states that no special tools are required for installation of the screw terminals.

What is the maximum cable size?

The supplied maximum cable cross-section is 6mm² / AWG10.

Should I automatically use 6mm² cable?

Not necessarily. Cable size should be calculated according to circuit current, cable length, acceptable voltage drop, installation temperature and circuit protection. The 6mm² specification is the maximum cable size accepted by the terminals.

What is the IP rating?

The supplied ingress-protection rating is IP43 when the screw terminals are installed facing downwards.

Does mounting orientation matter?

Yes. The stated IP43 protection applies when the screw terminals are oriented downwards.

Is the converter waterproof?

No. IP43 does not mean waterproof or suitable for immersion.

What is the off-load current?

The supplied off-load current is less than 35mA.

Does it use power when nothing is connected?

Yes. When powered without a significant load, the supplied off-load current is less than 35mA.

What is the operating temperature range?

The supplied operating-temperature range is -20°C to +55°C.

How large is the converter?

The supplied dimensions are 73mm high × 94mm wide × 45mm deep.

How much does it weigh?

The supplied weight is approximately 0.25kg.

Does it require external circuit protection?

Appropriate fusing or circuit-breaker protection should be selected according to cable capacity, source capability and the complete electrical installation design.

What should I check before ordering?

Confirm the 18–35V input range, 12.5V output compatibility, 20A continuous-current requirement, 25A maximum-output limit, need for galvanic isolation, cable size, circuit protection, available mounting space and IP43 mounting orientation before purchase.

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⚡ HIGH-EFFICIENCY 24V TO 12V POWER FOR HIGHER-CURRENT ACCESSORIES

Choose the Orion-Tr 24V to 12V-20A (240W) DC-DC Converter when you need an efficient and compact way to operate compatible 12V equipment from a nominal 24V electrical system.

With an 18–35V input range, regulated 12.5V output, 20A continuous-current capability, 25A maximum output, 97% efficiency, 6mm² screw-terminal capacity and compact 73 × 94 × 45mm enclosure, the Orion-Tr provides a practical voltage-conversion solution for compatible vehicle, marine, industrial and auxiliary-power applications.

Confirm the connected load, input voltage, required isolation, cable size, circuit protection and mounting environment before installation to ensure the Orion-Tr 24V to 12V-20A is correct for your system.