Are pushbuttons considered energy-isolating devices? Why or why not?

Pushbuttons are considered control devices rather than energy-isolating devices. An energy-isolating device is specifically designed to prevent the transmission or release of hazardous energy while maintenance and servicing are being performed. While pushbuttons can stop the flow of power temporarily, they do not physically disconnect or isolate the energy source.

Energy-isolating devices include components such as circuit breakers, disconnect switches, and lockable devices, which can be locked in the off position to ensure that equipment remains de-energized while work is being carried out. Pushbuttons, by contrast, typically allow for the flow of energy when activated and do not offer the same level of safety as more robust isolation methods. Therefore, while they play an important role in controlling machinery and operations, they do not fulfill the criteria required to be classified as energy-isolating devices.