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Protective devices

Circuit Breakers for Direct Current Applications

Circuit Breakers for Direct Current Applications

Aug 1, 2026 · 9 min read

Direct current, which was once the main means of distributing electric power, remains widespread today in electrical plants supplying particular industrial applications. The advantages offered by the use of DC motors and supply through a single line make direct current supply a good solution for railway and…

Understanding Discrimination with LV Power Circuit-Breakers

Understanding Discrimination with LV Power Circuit-Breakers

Jul 19, 2026 · 4 min read

In any electrical installation, loads are connected to power sources through a succession of protection, isolation, and control devices. When a fault occurs, the primary goal is to disconnect only the faulty part of the network while keeping the rest of the installation energised. This principle is known as…

Fuseology The Fundamentals of Overcurrent Protection

Fuseology The Fundamentals of Overcurrent Protection

Jul 19, 2026 · 7 min read

Overcurrent protection is the cornerstone of electrical system safety and reliability. Fuses have served as the "safety valve" of electrical circuits for over a century, providing a simple yet highly effective means of protecting conductors, equipment, and personnel from the destructive effects of overloads and…

A monitor displaying the SIMARIS software toolbox icons

A Free Power Distribution Planning Ecosystem

Jul 17, 2026 · 2 min read

For electrical engineers and consultants, planning a power distribution system is a complex task requiring careful consideration of network dimensioning, equipment selection, and regulatory compliance. Siemens addresses this challenge with the SIMARIS Suite, a comprehensive and free set of planning tools designed to…

A technician installing Eaton Bussmann series overcurrent protection devices in a panel

Overcurrent Protection Handbook

Jul 17, 2026 · 4 min read

Overcurrent protection is the cornerstone of electrical safety in any building. The correct selection and application of protective devices ensures not only the safety of personnel but also the reliability of the electrical system and the protection of valuable equipment. Eaton’s Bussmann series Selecting Protective…