HQ908A6

The Danaher HQ908A6 controller, part of the Timers and Controllers series, delivers dependable timing functions for demanding industrial automation environments. This model features a rugged Cycl-Flex Panel Mount design that integrates seamlessly into control panels, keeping the faceplate flush with enclosures to reduce snag hazards and minimize panel depth requirements. Operating on a standard 120 VAC supply at 60 Hz, the HQ908A6 supports a current rating of 10 A, providing sufficient switching capacity for moderate to heavy loads without the need for auxiliary relays. Certified to CSA, UL US, and RU standards, this controller ensures compliance with North American safety regulations and is built for consistent performance under industrial conditions. Its nominal 15-minute time range accommodates a variety of cycle control tasks, from conveyor dwell intervals to batch processing delays, without unnecessary complexity.

The HQ908A6 is defined by precise technical specifications that meet rigorous control requirements. It employs a SPDT contact configuration to allow both normally open and normally closed switching within a single device footprint. The unit belongs to the HQ9 Series cycle flex family and measures 146.05 mm (5.750 in) in overall length, optimizing space utilization on crowded panels. It operates reliably between -10 °F (-23 °C) minimum and +140 °F (+60 °C) maximum ambient temperatures, with a frequency rating of 60 Hz that matches global power standards. The input voltage of 120 VAC is regulated to maintain timing accuracy throughout the cycle, while the current rating of 10 A ensures the contacts handle inductive and resistive loads effectively. Compliance with CSA Certified, RU Recognized, and UL US listings underscores its suitability for OEM installations and retrofit projects.

Operationally, the HQ908A6 delivers repeatable performance in harsh environments. The Cycl-Flex mounting hardware secures the device against vibration and shock commonly found on manufacturing floors, preserving set time accuracy and contact life. Its sealed construction resists ingress of dust and moisture in controlled indoor settings, while the broad temperature range mitigates failures in freezers or near heat-generating equipment. With an inherent time drift of less than 0.1% per cycle, maintenance intervals are extended and recalibration needs are minimized. The SPDT contact layout offers wiring flexibility for interlocks, alarm triggers, and sequential machine operations under a single programmable delay.

System integrators will appreciate the HQ908A6’s compatibility with PLC outputs, motor starters, and programmable logic controllers across packaging, material handling, and process control applications. Its flush panel design simplifies retrofits in existing control cabinets and reduces downtime during system upgrades. Ideal for conveyor indexing, dispense timing, and automated test racks, this timer ensures precise cycle control where repeatability and safety standards are critical. The combination of industry approvals, robust build, and straightforward time adjustment makes the HQ908A6 a versatile solution for a wide range of industrial timing tasks.