ATC Automatic Timing & Controls 339B Plug-In Adjustable Time Delay Relays provide six dial-selected ranges from fractions of a second up to 10 hours and include selectable on-delay or interval timing modes. The dial face automatically displays the selected range, and the LED annunciator delivers an effective method of cycle progress indication. These solid-state modules with an octal plug-in base maintain repeat accuracy regardless of wide voltage and temperature variations, even after long periods of downtime. ATC Automatic Timing & Controls 339B Plug-In Adjustable Time Delay Relays accommodate the needs of a wide range of applications, allowing the user to easily and precisely select an appropriate range for optimal accuracy.
