Sally Drake 
Quick answer: A 24V DC power supply converts standard Australian 230V mains power into a stable 24-volt direct current output, commonly used for PoE injectors, telecom equipment, LED arrays and CNC machines. Campad Electronics stocks eight 24V switch-mode power supplies, ranging from compact 3A units to high-output 10A models, with 2.1mm and 2.5mm connector options. All units are SAA/CE certified and ship Australia-wide.
Not every 24V DC power supply is interchangeable, even though the voltage rating looks identical on the box. Current rating, connector size and build quality all determine whether a power supply runs your equipment safely or pushes it past its limits. For devices that run continuously, like telecom hardware or LED installations, that distinction matters more than it might seem.
Campad Electronics carries a dedicated 24V DC power supply range built for both consumer and commercial applications. This article covers what a 24V DC power supply is used for, the full range of models available, how to choose the right one for your setup and why buying from a specialist retailer beats gambling on an unbranded import.
What Is a 24V DC Power Supply Used For?
A 24V DC power supply converts the 230V AC mains power found in Australian homes and businesses into a stable 24-volt direct current output. This voltage is widely used in industrial and commercial settings because it strikes a balance between delivering higher power and remaining manageable for control circuitry.
Common applications for a 24V DC power supply include:
- PoE injectors and network equipment. Many Power over Ethernet systems rely on a 24V DC feed to deliver power alongside data.
- Telecom equipment . NBN-related hardware and other telecommunications devices often specify 24V as their standard operating voltage. NBN home modems use 12V in their power supplies.
- LED arrays and signage. Larger LED installations, including commercial signage and architectural lighting, commonly run on 24V DC power supplies for improved efficiency over longer cable runs.
- CNC machines and industrial controllers. Many CNC setups and automation controllers use 24V DC power supplies to run stepper motors and control boards.
- Security and access control systems. Some CCTV and door entry systems also specify 24V DC power, particularly in commercial installations.
Because 24V equipment often draws more current than typical consumer electronics, getting the current rating and connector size right isn’t optional. Choose correctly and your equipment runs reliably for years. Choose poorly and you risk underpowering the device or damaging it outright.
Campad Electronics’ Range of 24V Power Supplies
Campad Electronics stocks eight 24V switch-mode power supply options, covering light industrial use through to high-output applications:
- 24V 3A Switch Mode Power Supply 72W 2.1mm $43.99: A 72-watt unit suited to smaller LED runs and light-duty equipment requiring a 2.1mm connector.
- 24V 3A Switch Mode Power Supply 72W 2.5mm $41.49: The 2.5mm equivalent of the unit above, for devices fitted with the larger barrel connector.
- 24V 3A Switch Mode Power Supply IVP2400-2500 Replacement $43.99: A direct replacement option for equipment originally shipped with an IVP2400-2500 power supply.
- 24V 4A Switch Mode Power Supply 96W 2.1mm $54.49: Steps up to 96 watts of output for devices with higher current demands, fitted with a 2.1mm connector.
- 24V 4A Switch Mode Power Supply 96W 2.5mm $54.99: Matches the 4A, 96W output above with a 2.5mm connector for compatible equipment.
- 24V 5A Switch Mode Power Supply $64.99: A higher-output option suited to larger LED installations and equipment with sustained current draw.
- 24V 7.5A Switch Mode Power Supply 180W $98.49: Built for heavier-duty applications, delivering 180 watts for demanding industrial or commercial setups.
- 24V 10A Switch Mode Power Supply 240W 2.5mm $139.99: The highest-output unit in the range, delivering 240 watts for power-hungry industrial equipment or multi-device installations.
Each of these is a switch-mode power supply (SMPS), a design that runs cooler and more efficiently than older linear transformers. That efficiency matters even more at 24V, where higher-output units generate more heat under sustained load, such as those powering telecom equipment or CNC machines around the clock.
How Do I Choose the Right 24V DC Power Supply?
Picking the right 24V DC power supply comes down to three factors: current rating, connector size and whether you need a plug pack or a standalone unit.
What Current Rating Does My Device Need?
Current rating, measured in amps, determines how much power the adapter can safely deliver. Choose a 24V DC power supply with a current rating equal to or higher than your device requires, never lower. A device drawing 5A plugged into a 3A-rated supply may underperform, overheat or fail entirely under load. An adapter rated higher than required is safe to use, since the connected device only draws the current it actually needs.
If you’re unsure what your equipment requires, check the rating printed on the existing power supply or in the product manual. As a general guide: choose a 24V 3A to 4A supply for smaller LED runs and light-duty equipment; a 24V 5A supply for larger LED installations and moderate commercial use; and a 24V 7.5A to 10A supply for industrial equipment, CNC machines or setups powering multiple devices from a single source.
What Connector Size Do I Need: 2.1mm or 2.5mm?
Connector size, also called barrel jack size, needs to match your device’s charging port exactly. Campad Electronics’ 24V range includes both 2.1mm and 2.5mm connector options, the two most common sizes used across industrial and commercial electronics. A connector that’s too small won’t grip securely, risking intermittent power loss, while one that’s too large simply won’t fit. Always check the barrel size on your existing adapter or device manual before ordering a replacement. If your original power supply was an IVP2400-2500 unit, the dedicated replacement model in Campad Electronics’ range is purpose-built to match it.
Should I Choose a Plug Pack or a Standalone Power Supply?
At the 24V level, most of Campad Electronics’ range consists of standalone power supply units rather than compact plug packs, reflecting the higher-output, often permanently installed nature of 24V equipment. Standalone units with a separate mains lead suit bench-top setups, control cabinets and installations where the power supply sits away from the device it feeds. Choose a standalone unit if your equipment is in a fixed location and flexibility in placement matters more than a compact footprint.
Why Buy Your 24V DC Power Supply from Campad Electronics?
Choose Campad Electronics if safety compliance, product range and fast local delivery matter more to you than the cheapest unverified listing online.
Campad Electronics is an Australian-based retailer with over 35 years of experience supplying mobile and electronic accessories. Its 24V DC power supply range is built with Australian conditions and compliance standards in mind:
- Australian stock with fast delivery Australia-wide. Orders are dispatched locally, avoiding the long wait times that come with overseas sellers.
- SAA/CE certified. Every unit in the range meets recognised Australian and international safety standards, reducing the risk of electrical faults or equipment damage.
- Built-in protections. Switch-mode designs typically include safeguards against overcurrent, overheating and short circuits, protecting both the power supply and the connected equipment.
- 35+ years of experience. Decades spent supplying mobile and electronic accessories mean Campad Electronics can help you match the right 24V DC power supply to your exact application.
Generic, unbranded adapters sourced from overseas marketplaces often skip these protections entirely and compliance labelling on these products can’t always be trusted. For equipment that runs continuously, whether it’s a PoE network, a CNC machine or a commercial LED sign, the small price difference is a worthwhile trade-off for safety and long-term reliability.
Find the Right 24V DC Power Supply Today
Whether you need a compact 24V 3A unit for a small LED run or a high-output 24V 10A supply for industrial equipment, Campad Electronics has a switch-mode 24V DC power supply to match. Every unit in the range ships Australia-wide, meets SAA/CE safety standards and comes backed by a retailer that’s supplied Australian customers for over 35 years.
Browse the full 24V power supply range and find the right unit for your equipment today.
Frequently Asked Questions
How much does a 24V DC power supply cost at Campad Electronics?
Prices range from $41.49 for the 24V 3A Switch Mode Power Supply 72W 2.5mm up to $139.99 for the 24V 10A Switch Mode Power Supply 240W 2.5mm, depending on current output, wattage and connector type.
What connector sizes are available for 24V DC power supplies?
Campad Electronics’ 24V range includes both 2.1mm and 2.5mm barrel connectors, covering the most common sizes used across PoE injectors, telecom equipment, LED arrays and CNC machines.
Can I use a higher-amp 24V adapter than my device requires?
Yes. A device only draws the current it needs, so using a 24V DC power supply rated higher than required is safe. Using one rated lower can cause overheating, instability or the device failing to power on altogether under load.
Are these 24V power supplies safe to use in Australia?
Yes. All Campad Electronics’ 24V DC power supplies are SAA/CE certified and include built-in protections against overcurrent and overheating, meeting Australian electrical safety requirements.
Is there a replacement unit for an original IVP2400-2500 power supply?
Yes. Campad Electronics stocks a dedicated 24V 3A Switch Mode Power Supply IVP2400-2500 Replacement, priced at $43.99, designed as a direct substitute for the original unit.
How long does delivery take?
Campad Electronics ships Australia-wide with fast delivery, so most customers receive their order promptly after purchase.
What applications is the 24V 10A supply suited to?
The 24V 10A Switch Mode Power Supply 240W 2.5mm is built for power-hungry industrial equipment, CNC machines or installations powering multiple devices from a single source, where sustained high current is required.