Switchmode PSUs meet international requirements

June 2001 Electrical Power & Protection

On 1 January 2001, the EN 61000-3-2 standard became mandatory. According to this standard, the harmonic oscillation current of primary switchmode power supplies has to be within certain set limits.

Equipped with PFC (power factor correction) the new MCS primary switchmode power supplies can meet these requirements and pass the standard. The wide input voltage range makes it possible to use the MCS on almost every electricity supply in the world. The input voltage range for single-phase units is 90-265 V a.c. and for three-phase units 3 x 360-550 V a.c. The power range extends from 30 up to 960 W with output specification from 24 V/1,25 A up to 24 V/40 A.

There is always the need for more cabinet space: the book-shape design reduces the needed installation volume by as much as 50%, allowing for new installation possibilities. The user defines the manner in which the units respond to short circuit and overload conditions - the choice between automatic restart or total shutdown is useful in setting up for specific applications.

Retron

(011) 786 0553

[email protected]

www.retron.co.za

Further reading:

Navigating solar energy adoption
Electrical Power & Protection
Although South Africa’s enhanced solar tax rebate has ended, solar and energy storage solutions remain accessible and achievable. By taking a proactive and strategic approach, businesses can successfully lower their operational costs, mitigate power outages, and secure long-term energy independence.

Read more...

---

As wind energy gains momentum, lack of grid infrastructure remains a bottleneck
Electrical Power & Protection
Interest in wind energy has gained significant momentum in South Africa, opening up new opportunities for investment. However, lack of grid infrastructure could prove to be a stumbling block in unlocking this potential.

Read more...

---

Portable appliance tester
Vepac Electronics Electrical Power & Protection
The new appliance tester from Vepac is the ideal tool for testing the safety of electrical appliances in accordance with DGUV regulation 3 and BetrSichV. It enables the precise measurement of protective conductor or touch current using the equivalent leakage current method.

Read more...

---

Is sustainability enough any more?
Electrical Power & Protection
With the planet’s resources stretched to the brink and no signs of improvement, it is time we look beyond sustainability and explore regenerative thinking and design.

Read more...

---

A simple guide to understanding the importance of IP ratings
Electrical Power & Protection
When selecting electrical products for industrial, commercial or even domestic use, it is crucial to consider how well they can withstand environmental factors like dust and water. This is where ingress protection (IP) ratings come into play.

Read more...

---

A milestone in electrical safety
ABB South Africa Electrical Power & Protection
Celebrating a milestone in electrical safety, ABB proudly marks the 100-year anniversary of its revolutionary Miniature Circuit Breaker.

Read more...

---

The power of water
Editor's Choice Electrical Power & Protection
The Alpenglow Hy4 is the world’s first water-based hydrogen combustion engine, offering a convincing alternative to traditional battery-electric vehicles and established hydrogen fuel cell designs.

Read more...

---

Optimising purification for green hydrogen production
Parker Hannifin - Sales Company South Africa Editor's Choice Electrical Power & Protection
Parker Hannifin delivers advanced purification and thermal management components that enhance green hydrogen production.

Read more...

---

A new chapter in geothermal engineering
Editor's Choice Electrical Power & Protection
The town of Geretsried in southern Germany has become a focal point in the global shift toward renewable energy. While the world’s attention often turns to wind turbines and solar panels, a quieter but no less powerful force is at work deep beneath the surface, geothermal energy.

Read more...

---

Harnessing the ocean with wave energy
Editor's Choice Electrical Power & Protection
Wave energy is emerging as one of the most promising yet underutilised renewable sources. Tapping into the rhythmic, predictable power of ocean waves, this technology offers a clean, reliable alternative to fossil fuels and a valuable complement to wind and solar energy.

Read more...

---