UL 183:2020 PDF Download

UL 183:2020, also known as the "Standard for Manufactured Wiring Systems," focuses on the requirements for wiring systems used in outdoor locations. It specifically covers field-installed wiring assemblies that utilize off-site manufactured subassemblies for various types of circuits, including branch circuits, remote-control circuits, signaling circuits, and communication circuits. These wiring systems are intended for installation in accessible areas and must comply with the guidelines outlined in Article 604 of the National Electrical Code (ANSI/NFPA 70).

The standard aims to ensure the safety and performance of manufactured wiring systems by laying out specific requirements that must be met. These requirements include criteria for materials, construction, installation, and testing. By adhering to UL 183, manufacturers and installers can ensure that the wiring systems they produce and use are in compliance with industry standards and regulations, reducing the risk of electrical hazards and guaranteeing the efficient operation of circuits in outdoor environments.