What type of device is operated manually to connect load conductors to a power source?

The type of device that is operated manually to connect load conductors to a power source is a switch. Specifically, a switch is designed to make or break the connection in an electrical circuit, allowing for the manual operation to control the flow of electricity to a load.

A bass isolation switch, as mentioned in the provided answer, typically relates to specific configurations or systems, primarily in audio applications. However, it does not serve as the general definition of a switch used in the context of connecting load conductors to a power source.

In this case, a transfer switch is used to transfer loads between different power sources, generally in situations where an alternative source like a generator is employed, which is not strictly a manual function. A power distributor serves to distribute power, usually from a central point to multiple branches or loads but does not provide the direct manual operability for connecting or disconnecting loads. A main disconnect switch provides a means to disconnect the electrical system from the power source but is typically used for safety and maintenance rather than as an everyday operation.

Thus, the correct understanding of what operates manually to connect load conductors to a power source revolves around the broader concept of a switch, specifically referring to the general operation and function of these devices rather than narrowing