The Allen-Bradley 849-ZAD32 is a Bulletin 849 pneumatic timing relay that provides time-delayed control for industrial electrical circuits, featuring a 110/120 VAC coil variant. It uses a silicone bellows-based timing mechanism and a front-access dial for setting the delay, a hallmark of the Bulletin 849 family. This relay coordinates loads and sequences in automation systems by delaying activation or deactivation of motors, valves, or other actuators as part of start-up sequencing and interlock tasks in manufacturing environments. Coil voltage options for this model are commonly 110 or 120 VAC, reflecting the legacy 849 timing-relay lineup and its use across a range of control panels.
