HG101A692 by Danaher

The HG101A692 plug-in timer is produced by Danaher and belongs to the Timers and Controllers series. Designed for panel or socket mounting, the device generates precise cyclical on and off periods so that solenoids, lamps, or contactors operate at fixed intervals inside automated machinery. It uses a synchronous unidirectional motor to advance an internal cam assembly, providing repeatable mechanical timing without microprocessor electronics. In production lines or batch processes, this component can serve as the primary timing element that controls the dwell and overlap between successive machine actions.

In the CYCL-FLEX plug-in case style, the timer connects directly to a standard octal socket and draws 2.5 VA from the control circuit. The power section accepts a supply of 120 VAC at 60 Hz, energizing the synchronous motor and internal timing mechanism. Electrical loads are switched through two SPDT contacts that can carry up to 10 A at 120 VAC, allowing direct control of typical pilot loads. Dial repeatability remains within 0.5% of the dial setting, helping consecutive machine strokes maintain consistent timing. The timer operates in a fixed on-and-off repeat-cycle mode, so it does not require operating-mode selection during installation.

The explosion-proof HN388 housing permits mounting in classified areas, and the internal mechanism has a mechanical life of 10,000,000 operations. Each contact set has a switch life of 250,000 operations at the rated load. The adjustable interval extends to 60 seconds, providing a maximum timing period of one minute without an external counter. For shorter sequences, the front dial can be adjusted to a minimum interval of one second. The design limits the dwell or overlap between successive states to 1 second. These timing ranges support the controlled pacing of indexing tables or reciprocating actuators when external PLC logic is unavailable.