Westinghouse Electric BST-ON Solid State Timing Relay

The Westinghouse BST-ON Solid State Timing Relay is an electronic timing relay designed for continuous operation in industrial automation and control panels. It provides timed electrical switching and sequence control for motor control circuits, conveyors, HVAC equipment, and other process automation machinery where dependable timing is essential. Designed for panel or control cabinet installation, this industrial-duty device uses solid-state timing control to manage sequencing in industrial electrical systems and supports compatibility with industrial automation and machinery controls. Core specs: Brand: Westinghouse; Part Number: BST-ON; Product Type: Solid State Timer Relay; Relay Type: Electronic timing relay; Function: Timed switching and sequence control; Application: Industrial automation and timing systems; Suitable For: Motor control and relay sequencing applications; Mounting Type: Panel or control cabinet installation; Construction: Industrial-duty electronic relay housing; Designed For: Continuous industrial operation. In practice, technicians rely on the BST-ON for automation sequence management, system replacements, and retrofit work across manufacturing, automation, HVAC, and machinery systems. Common replacements in the market include Allen-Bradley Timing Relay, Siemens SIRIUS Timing Relay, and Schneider Electric Zelio Time Relay.