Electrical Power & Protection


DC-DC transformers for stable 24 V direct voltage

April 2006 Electrical Power & Protection

Phoenix Contact has two new products in its Mini Power power supply range - DC-DC transformers at 24 V/1 A. These transform direct voltages ranging from 36 to 74 V (10 to 32 V) to a stable, configurable output voltage of 24 V.

If a regulated, stable 24 V direct voltage is not available for supplying the load, the DC-DC transformers make sure that the 24 V device receives a stable voltage. The unregulated DC voltage is transformed into a regulated output voltage, which can be set anywhere between 22,5 and 28,5 V. As they are electrically isolated, the two direct voltage circuits are safely separated. A zero-voltage DC-OK output and LED are available for signalling.

All power supplies have a V/I characteristic curve and work with a Power Boost power reserve, which reliably starts loads even with high start-up currents. The circuit breakers are always triggered by high levels of short-circuit current. Preventive function monitoring and a power failure bridging time of more than 20 ms at full load offer a high degree of operational reliability.

All devices are electronically protected against overloads and short circuits, have a large temperature range (-25 to +70°C), and are supplied with an international certification package.

For more information contact Duncan Venter, Phoenix Contact, 011 801 8200, [email protected], www.phoenixcontact.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Power supply with scalability optimised
Schneider Electric South Africa Electrical Power & Protection
Schneider Electric has introduced the Easy UPS 3-Phase Modular to the South African marketplace. This robust uninterruptible power supply (UPS) is designed to protect critical loads while offering third-party verified Live Swap functionality.

Read more...
Prioritising arc flash safety
Comtest Electrical Power & Protection
Comtest has developed a range of thermal imaging and wireless testing tools from Fluke, designed to ensure safety is the top priority for engineers working in potentially dangerous arc flash zones.

Read more...
Monitoring the voltage drop in cables
Turck Banner Southern Africa Electrical Power & Protection
With its new M12Plus connectors, Turck Banner is directly shifting the condition monitoring of cables subject to severe stress to the connection technology. The connectors, which come with voltage and current monitoring and a Bluetooth chip, enable measured voltage and current values to be sent wirelessly to a controller.

Read more...
Mesh networks: a multidirectional electrical superhighway
Schneider Electric South Africa Electrical Power & Protection
Today, many power industry stakeholders are faced with mounting requirements for improved grid reliability, resilience and distribution efficiency. It’s a challenge which requires power service providers to rethink their infrastructure. Enter mesh networks, which can overcome the limitations of traditional star networks.

Read more...
Versatile flexible copper busbar
Electrical Power & Protection
Referro Systems specialises in the supply and support of industrial electrical, automation and global software and hardware brands, and is now able to offer the Cubic range of Cu-Flex flexible copper busbars.

Read more...
Trafo Power Solutions upgrades DRC mine transformers
Electrical Power & Protection
With its experience in Africa and its agility in executing projects rapidly, Trafo Power Solutions is supplying three mini-substations and two transformers to a copper-zinc mine in the Democratic Republic of Congo.

Read more...
Acquiring locally-manufactured transformers
ACTOM Electrical Machines Electrical Power & Protection
Speed and efficiency are of the essence in the fast-evolving power generation and distribution space; but a significant challenge is the prolonged lead times associated with acquiring transformers – key components in any electrical infrastructure.

Read more...
Seaward testers power PV specialists
Comtest Electrical Power & Protection
One of Asia’s leading clean energy specialists, Solarvest, uses the latest electrical safety test equipment to ensure the solar photovoltaic (PV) installations it services and maintains operate at peak performance levels.

Read more...
Multi-purpose contact block
Electrical Power & Protection
The TME catalogue has been expanded to include products from Schlegel. This German, family-owned company has been specialising in the production of high-quality electromechanical components for almost 80 years.

Read more...
ACTOM supplies transformer units to Kamoa Copper Mine
ACTOM Electrical Machines Electrical Power & Protection
ACTOM Distribution Transformers, recently secured an order for the supply of its neutral electromagnetic couplers, with earthing resistors, and an auxiliary transformer) to Kamoa Copper Mine in the DRC.

Read more...