what is a class 2 power transformer?

A Class 2 power transformer is a type of transformer designed for low-voltage applications, typically used in lighting and low-power circuits. It is defined by the National Electrical Code (NEC) as having a secondary output voltage not exceeding 60 volts and a power rating not exceeding 100 VA. Class 2 transformers provide safety by limiting the output current and voltage, reducing the risk of electric shock and fire hazards in residential and commercial installations.