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:

South African businesses can alleviate energy price crisis
Electrical Power & Protection
While grid instability remains a concern, the immediate and most critical driver of South African commercial and industrial investment in renewable energy is the escalating cost of electricity.

Read more...
All eyes on the modern DCS platform
Schneider Electric South Africa PLCs, DCSs & Controllers
Modernised DCS platforms are no longer confined to hardware-dependent architectures. These systems have evolved to combine the strengths of both PLCs and DCS while adding capabilities that make them more open, resilient and collaborative.

Read more...
Why choose between Capex and Opex if you can Totex?
Schneider Electric South Africa IT in Manufacturing
In a sector marked by cyclical demand, high capital intensity, and increasing regulatory and sustainability pressures, mining, minerals and metals (MMM) companies are re-evaluating how they approach procurement and investment.

Read more...
AI and the smart factory
Schneider Electric South Africa IT in Manufacturing
Imagine walking into a factory where machines can think ahead, predict problems before they happen and automatically make adjustments to realise peak performance. This isn’t science fiction, it’s happening right now as AI continues to transform how we run industrial operations.

Read more...
Why your supply chain should be a competitive advantage
Schneider Electric South Africa IT in Manufacturing
The last five years have placed unprecedented strain on global supply chains. Leading companies are turning the challenge into an opportunity to transform their supply chains into a competitive advantage.

Read more...
Real-time modelling is the key to a resilient, bi-directional energy grid
Schneider Electric South Africa Electrical Power & Protection
Utilities and municipalities are facing a challenge as the country’s legacy power grid, engineered for one-way energy delivery from centralised suppliers to end-users, must rapidly evolve to meet a new paradigm.

Read more...
Shielding data centre growth from the looming power crunch
Schneider Electric South Africa Electrical Power & Protection
Today’s digital economy is placing unprecedented strain on the power grid. The good news is that these challenges are not insurmountable. By adopting proactive strategies such as alternative power sources, infrastructure planning and software, operators can secure capacity, build resilient facilities and scale sustainably.

Read more...
Circuit breaker innovations
Schneider Electric South Africa Electrical Power & Protection
Recent advancements in circuit breaker technology have seen a major step forward in setting new standards for efficiency and sustainability in data centres, industrial and commercial infrastructure.

Read more...
Common battery tester errors and what they mean
Comtest Electrical Power & Protection
Battery testers help quickly assess battery health, diagnose issues, and determine whether a battery needs a charge or replacement. This guide covers some of the most common battery tester errors, what they mean, and what can cause them.

Read more...
Buildings and microgrids for a greener future
Schneider Electric South Africa IT in Manufacturing
Buildings are no longer passive consumers of power. Structures of almost every size are evolving into dynamic energy ecosystems capable of generating, storing and distributing their own electricity. Forming part of this exciting transformation are microgrids.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved