Whitepaper – Challenges in Switching Direct Current (DC)

Direct current (DC) technology is rapidly gaining ground in industrial applications, energy transmission, and DC networks. While DC offers various efficiency advantages, it also introduces new challenges for switching technology, particularly in the voltage range up to 1,500 V DC. This white paper highlights the physical and technological challenges of DC switching, with a special focus on managing electric arcs. It supports engineers in selecting the right DC contactors for specific applications.

This white paper covers the following topics:

• The resurgence and growth of direct current in modern applications
• Differences in physics between alternating current (AC) and direct current (DC)
• The formation of electric arcs during switching processes
• Methods for extinguishing arcs in DC applications
• Contact wear and corrosion caused by prolonged arc exposure
• Examples of industrial applications of DC technology
• Selection criteria for appropriate DC contactors based on application
• Practical recommendations for safe and durable switching systems

This white paper offers valuable insights for professionals working on safe, reliable, and future-proof DC installations.

Request the white paper 'Challenges in Switching Direct Current (DC)' as a PDF