What is not typically listed on a motor disconnect switch?

A motor disconnect switch is an essential safety component in electrical installations, as it allows for the safe disconnection of power from a motor. Typically, various important specifications and information are noted on the switch to ensure proper operation, compliance with electrical codes, and safety during maintenance.

The voltage rating is crucial because it indicates the maximum voltage the disconnect switch can handle, ensuring compatibility with the electrical system and preventing equipment damage or failure. The power conductor type is also significant, as it specifies the kind of conductors suitable for connecting to the switch, which affects the installation and safety. The laboratory approval signifies that the switch has been tested and complies with specific safety standards, offering assurance regarding its performance and reliability.

Conversely, the manufacturer's warranty is not a standard specification listed on the motor disconnect switch itself. While it is important for consumers to be aware of warranties concerning product quality and assurance, this information is typically provided in documentation separate from the physical product, such as packaging or user manuals, rather than on the switch. This distinction is why laboratory approval is the correct choice in this context, as it relates directly to safety standards rather than warranty information.