What does low voltage refer to in electrical controls?

Low voltage in electrical controls specifically refers to wiring or devices that operate on 30 volts or less. This classification is important because low voltage systems are typically used in various applications, including low voltage lighting, control circuits, and other safety-critical systems where the risk of electric shock is minimized compared to higher voltage systems.

Using 30 volts or lower helps ensure safer operations and compliance with specific safety standards and codes. Low voltage systems can be more manageable and safe for installation and maintenance since they present a lower risk of severe electric shock. This is especially critical in environments where personnel frequently interact with electrical components.

In contrast, higher voltage levels can introduce significant hazards, necessitating stricter safety measures and equipment designed to handle those dangers. Therefore, understanding what constitutes low voltage helps an engineer manage systems effectively and safely.