What type of wire and voltage limit is required for safety control circuits?

For safety control circuits, the requirement is typically 2 wire and a voltage limit not exceeding 150 volts. This specification helps ensure safety in low-voltage applications, reducing the risk of electrical shock or fire hazards associated with higher voltage systems.

Using two wires allows for a simple circuit configuration, which is easier to manage and less prone to errors in installations. The voltage limit of 150 volts is a common standard for low-voltage control circuits, ensuring they are compliant with safety regulations designed to protect both equipment and individuals working on or around these systems. These standards are in place to ensure that the equipment operates safely under the conditions it's designed for, limiting the risk of electrical failures or accidents.