SSAC ADO102A Timer Board

The SSAC ADO102A timer board is a compact timing module from SSAC that adds programmable delay control to control circuits and panel assemblies. As part of SSAC's long-running line of time-delay devices (now part of Littelfuse), the ADO102A is designed to coordinate events in automation, HVAC controls, and other equipment that require timed switching. The board interfaces with external control signals and provides a timed output to drive a relay or switch through an external driver, enabling precise start/stop sequencing in a cabinet or on a PCB. The ADO102A's timing range and mode options align with SSAC's universal timer family, supporting timing functions such as delay-on, delay-off, and multi-mode sequencing, with SSAC's documentation illustrating typical onboard adjustment and multiple control configurations across the product line. The model is listed under the ADO102A part number by SSAC and appears in distributor listings, indicating its role as a dedicated timer board designed for integration into existing control systems. Whether mounted in a control cabinet or integrated onto a PCB, the ADO102A offers a compact footprint and the reliable timing performance associated with SSAC timers, making it suitable for applications that require repeatable timing intervals and controlled activation of connected devices.