Eaton NSB 10250T432 Selector Switch Key Operated 3 Position

The Eaton NSB 10250T432 Selector Switch is a key-operated, three-position control device used in electrical panels and control circuits. Its part number NSB 10250T432 identifies this unit within Eaton's NSB selector switch lineup, signaling a keyed actuation feature that helps control who can operate the switch. This switch is specified for installation in enclosures with NEMA ratings 3, 3R, 4, and 4X, indicating suitability for environments that require protection against dust, water ingress, and corrosion depending on the enclosure. With a three-position configuration, the operator can select among three discrete states, while the built-in key mechanism prevents unauthorized rotation. Designed for industrial use, this Eaton component provides a practical solution for applications needing secure, centralized control accessible through a keyed selector switch. Three-position selector switches are commonly used to select among multiple control circuits or status indicators in automation and machine control applications.