General Electric NSB CR104PSG74B91 Selector Switch

General Electric NSB CR104PSG74B91 Selector Switch is a manual control device designed to route electrical circuits within industrial equipment, providing a tangible interface for an operator to select among different circuit paths during operation and to influence how power or signals are directed throughout a system. The unit carries GE part number CR104PSG74B91 and represents a specific entry in GE's NSB family of selector switches, ensuring precise identification for procurement, maintenance, and service compatibility across GE NSB components and assemblies. In practice, it is installed where an operator must manually select between multiple circuit paths, enabling quick, repeatable changes to the active configuration of a control system and supporting straightforward troubleshooting by revealing which path is engaged. The CR104PSG74B91 designation provides a unique reference for ordering and cross-referencing within GE NSB selector switch applications, helping technicians source the exact device for replacements or spares.