UL 2161:2016 PDF Download

UL 2161:2016 is a standard that applies to transformers and power supplies used for neon and cold-cathode tubing, which are electric-discharge tubing consisting of electrodes and gas enclosed in glass. This standard covers transformers and power supplies that provide the voltage and ballasting for neon and cold-cathode tubing used in signs, outline lighting, and cold-cathode lighting systems. The standard specifies the construction and intended use of neon transformers and power supplies, and provides guidelines for their installation and safety requirements.

The standard also mentions that certain types of neon supplies are covered only as components for use in an end product that complies with the Standard for Electric Signs, UL 48. It excludes transformers or power supplies intended for other forms of electric-discharge lighting sources, such as fluorescent and high-intensity-discharge lighting.

Table 1.1 in the standard provides a construction type designation for neon transformers and power supplies based on their enclosure, primary connections, secondary connections, and type designations. The table includes definitions and numbers for each type, helping manufacturers and users identify and classify the neon transformers and power supplies.