HA40A6

The Danaher HA40A6 precision reset timer represents a pivotal advancement in the Timers and Controllers series, delivering reliable timing control in industrial automation. Designed around a synchronous motor driven mechanism, the HA40A6 offers a selectable Time Range of 5 Sec to 60 Hr via a front-mounted micrometer scale dial with a 20 to 1 turn ratio. Built for repeatability, it features a robust cycle progress pointer and locking knob to withstand machine vibration and maintain setpoint integrity. The unit operates on 120V AC 60Hz or optionally 240V AC 60Hz, with a Voltage Tolerance of +10%, -15%, ensuring stable performance under fluctuating supply conditions. Incorporating silver contacts and a metal chassis weighing 2 lb. 14 oz., this timer balances durability with compact form factor.

Detailed technical parameters underline the HA40A6’s capabilities. The Motor Burden of 2.45 VA at 120V AC and Clutch Burden of 10.5 VA drive the timing mechanism with minimal power draw. Contact ratings include 10A at 120V AC resistive and 5A at 240V AC resistive, supported by three sets of 15A contacts configurable in six sequences. The device achieves a Repeat Accuracy of ±0.05 Sec. to ±18 Min. across its dial ranges, with a Reset Time of 0.5 Sec. at maximum setting. The Power On Pull-in Time averages 28 ms and Drop-out Time averages 17 ms, ensuring swift engagement and release of outputs. The unit’s Electrical Lifetime of 250,000 cycles at full load and Mechanical Switch Life of 5 million cycles guarantee extended service intervals.

Operational features emphasize environmental resilience and precision. The HA40A6 functions across an Operating Temperature range of -18°C to +60°C and withstands Vibration Resistance of 2.5G, 10–900 Hz on three axes, preserving timing accuracy in harsh conditions. Its front-panel mounting and rear terminal block facilitate straightforward installation and maintenance. The four-inch outer dial enhances setpoint visibility, while the locking knob secures the selected timing interval against shock and vibration. With a modest mass of 2 lb. 14 oz., the timer integrates seamlessly into existing control panels without imposing significant weight loads.

System integration is streamlined through compatibility with standard industrial control circuits, enabling direct interfacing with relays, PLC inputs, and manual override switches. The HA40A6’s repeatable performance and broad supply voltage support render it suitable for applications in conveyor control, thermal process sequencing, batch processing, and safety interlock systems. Specified as part of Danaher’s industrial automation product line, this timer excels in scenarios demanding precise, long-duration timing and robust operational longevity.