Allen-Bradley 800T-PST16 Programmable Time Delay Relay

The Allen-Bradley 800T-PST16 Programmable Time Delay Relay is a compact timer module in the 800T family from Rockwell Automation that provides a configurable delay after input energization. It is designed to control outputs in industrial control circuits, enabling precise sequencing, interlocking, and timed activation of downstream devices such as contactors, relays, alarms, or indicators. The PST16 variant includes a push-to-test feature for quick verification of timing operation and status indication to show when the timer is active or complete. This model is commonly used in machine control, conveyor systems, and batch processes where reliable, adjustable time delays are required to coordinate actions and ensure proper safe sequencing.