UL 863:2009 PDF Download

The UL 863:2009 standard covers a range of electrically-operated clocks and time-indicating and -recording appliances. These appliances include clocks that are part of master clock systems, as well as secondary, cost, pay-roll, and other industrial clocks. The standard also applies to time stamps, job-card recorders, timers, and similar devices.

These appliances are intended for use on circuits with a voltage of 300 volts or less, following the guidelines set by the National Electrical Code. However, it is important to note that this standard does not cover clocks primarily intended for household installations. Additionally, it does not include illuminated clocks that are designed to serve as portable electrical lamps or for other illuminating purposes.