Overvoltage protection for computer systems
July 2003
Electrical Power & Protection
The DEHN range of Mini modules from Surge Technology protect 2-wire, 12, 15 or 24 V systems against damage caused by lightning and power surges. With a frequency handling of up to 1, 30 and 50 MHz, the modules may be used on virtually all computer data systems, and even those operating at extremely high frequencies.
These 10 kA (8/20) devices are designed for installation where space is limited. A compact version of the standard Blitzductor, the modules are also suitable for use in instrumentation and telecommunication systems. Available in three mounting types, the Mini modules offer a plug-in type for PC boards, a module that can be soldered onto PC boards and a type that is wired directly into the electronic equipment. Another popular design is the plug-in module with a base plate that clips into standard top hat or G-type DIN rails.
Voltage ranges are standard from 8 to 24 V, however higher voltages of up to 42 V are available on request. A range of DEHN Mini modules specifically designed for power supply systems of 220 V, 10 A is also available.
For more information contact Paul van As, Surge Technology, 011 792 1303, [email protected], www.surgetek.co.za
Further reading:
The climate change reality in South Africa: An engineer’s call to action
Electrical Power & Protection
This year’s World Engineering Day on 4 March was a powerful reminder of the critical role engineers play in driving progress toward the sustainable development goals.
Read more...
Empowering Africa’s renewable energy future
Electrical Power & Protection
As a global leader in renewable energy technology, SUNGROW has pioneered sustainable power solutions for over 28 years. At the recent Africa Energy Indaba 2025, SUNGROW showcased its advanced energy solutions designed to meet the diverse needs of the African continent.
Read more...
The role of electromechanical solutions in supporting Africa’s industrial growth
Electrical Power & Protection
Africa’s industries are transforming rapidly. Fuelled by a huge demand for energy connectivity, better infrastructure, increased manufacturing and responsible resource management, electromechanical solutions are key to shaping this growth, allowing industries to scale up their operations efficiently and sustainably.
Read more...
Empowering South Africa’s IPPs for a renewable future
Electrical Power & Protection
Many crucial parts of the economy of the future will be hugely energy intensive, foremost amongst which will be electrified transport and the large data processing required by automation and AI. Successful economies will be those that can ensure businesses and investors have access to a stable supply of low-cost renewable energy. South Africa has the opportunity to become a global leader in this regard.
Read more...
Sustainable mining operations escalate as demand for critical materials to double
Electrical Power & Protection
The mining sector is at the forefront of the energy transition due to its role in extracting essential materials and minerals necessary for green technologies. As demand for renewable energy, electric vehicles and other sustainable technologies increases exponentially, so will the demand for these necessary materials.
Read more...
Monitoring partial discharge on medium voltage switchgear
Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric South Africa has launched its EcoStruxure Service Plan (ESP) in the Anglophone African region for medium voltage (MV) switchgear
Read more...
Raptor switches
Phoenix Contact
Electrical Power & Protection
The Phoenix Contact Raptor switches enable reliable and safe operation in extreme ambient conditions. The managed switch portfolio meets the stringent requirements of IEC 61850-3 and IEEE 1613 standards and is ideal for critical infrastructure and power supply applications.
Read more...
Electrical safety warning indicators
Electrical Power & Protection
Remlive electrical safety warning indicators have been keeping the workplace safe for more than 25 years.
Read more...
Self-contained standalone lightning warning system
Senseca
Electrical Power & Protection
The BTD-200 lightning warning system from Biral (UK) is a complete detection and warning system. Its highly specialised aviation grade lightning detection technology delivers the warning as soon as lightning is detected and before the first strike.
Read more...
Half brick second generation converter
Vepac Electronics
Electrical Power & Protection
The Supreme series half brick second generation converter from Vepac is composed of isolated, board-mountable, fixed switching frequency DC-DC converters that use synchronous rectification to achieve extremely high power conversion efficiency.
Read more...
printer friendly version