Electrical Power & Protection


Switched mode power for PLCs

October 2007 Electrical Power & Protection

Phaseo switch mode power supplies from Schneider Electric deliver the DC power necessary for PLCs and other automation system control circuits. Modular and universal for common applications, they are complemented by the AS-Interface range for the AS-Interface cabling system and the dedicated range for repetitive machines.

The Phaseo Modular range caters for the needs of simple automation systems in the range 7 to 60 W, with output voltages of 5, 12 or 24 V. Its compact size makes it suitable for use with a modular panel and cabinet rail mounting. The choice of top or bottom wiring (except for the ABL 7RM24025) makes it an easy product to integrate, with direct mounting in a panel using two retractable lugs.

The Phaseo Optimum range offers a low cost solution for 12, 24 or 48 V applications requiring currents between 3 and 5 A. The Optimum Range can guarantee the PLC logic states until an overload situation occurs. At this point the power supply protection trips, only restoring itself once the fault has been identified and rectified. (Note that not all Optimum range feature power factor correction.)

The Phaseo Universal range covers ratings from 72 to 960 W at 24 V. This range is easily adaptable to suit power distribution systems across the globe and can be connected to phase-to-neutral (N-L1) or phase-to-phase for line supplies with a nominal range extending from 100 to 500 V. It offers diagnostic functions be it local or remote, user choice of operating mode in case of overload by either current limiting or stop.

Function modules ensure service continuity with buffer module and battery check modules to protect against prolonged outages or microbreaks. The redundancy module ensures paralleling and redundancy functions while the discriminating electronic downstream protection modules ensure protection against application overloads.

The power reserve, or boost function, absorbs the transient current peaks and the range complies to standard EN 61000-3-2 (through the incorporation of a power factor correction input filter whose function is to reduce harmonic pollution across the entire range).

The Phaseo AS-Interface range covers power ratings from 72 to 144 W at 30 V and the Phaseo Dedicated range is designed to deliver from 60 to 240 W, also at 30 V, catering for commercial and standard catalogue machines.

For more information contact Kruben Bennie, Schneider Electric, +27 (0)11 254 6400, [email protected], www.schneider-electric.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Bringing brownfield plants back to life
Schneider Electric South Africa IT in Manufacturing
Today’s brownfield plants are typically characterised by outdated equipment and processes, and face challenges ranging from inefficient operations to safety hazards. However, all is not lost, as these plants stand to gain a lot from digitalisation and automation.

Read more...
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...
Schneider Electric announces 2023 Global Alliance Partner Programme award winners
Schneider Electric South Africa News
Schneider Electric has announced the winners of the 2023 Global Alliance Excellence Awards. Throughout 2023, Schneider Electric’s Alliance Partners supported customers in the digitalisation of industrial automation, delivering value with innovative initiatives, solutions and services.

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...
AI is driving data centres to the edge
Schneider Electric South Africa IT in Manufacturing
The data centre has become the cornerstone that links our digitally interconnected world. At the same time, the rapid growth and application of AI and machine learning (ML) is shaping the design and operation of data centres.

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...