Allen-Bradley MS25-PS11 Manual Protector Starter Auxiliary Switch

The Allen-Bradley MS25-PS11 Manual Protector Starter Auxiliary Switch is a PS11 auxiliary contact designed to mount on the MS25 series manual motor protector starters, delivering a pair of isolated contacts—1 normally open and 1 normally closed—for signaling and interlock purposes in motor-control circuits, with side mounting that preserves the MS25 family’s compact footprint. The auxiliary contact is rated at 3.5 A at 230 VAC, enabling reliable feedback to controllers and safety interlocks without overloading control circuits, and it is designed to align with the MS25 mounting scheme to simplify wiring and maintain clean panel layouts. When the MS25 protector actuates or trips, the PS11 changes state in concert with the main contacts, providing a deterministic status signal that can feed start/stop sequencing, machine safety monitoring, or interlock logic in automation systems. This MS25-PS11 accessory is intended specifically for MS25-series motor protectors, offering a dedicated status signaling path in a compact, easy-to-install package that integrates protection hardware with control logic in industrial motor applications.