HA40A6
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The HA40A6 timer features a selectable time range from 5 seconds to 60 hours, a supply voltage of 120V or 240V AC at 60Hz, an electrical lifetime of 250,000 cycles at full load, and weighs approximately 2 lb. 14 oz. Part of the Timers and Controllers series by Danaher, it operates within -18°C to +60°C.
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Product Description:
The HA40A6 timer from Danaher is a synchronous motor driven reset timer. It is designed for accurate and repeatable timing control in industrial applications. The timer offers a selectable time range from 5 seconds to 60 hours through its adjusted front mounted dial with a micrometer scale that provides a 20 to 1 turn ratio for fine adjustments.
The HA40A6 timer features an outer dial of 4 inches diameter for clear visibility and its cycle progress pointer allows easy monitoring. It includes a locking knob to secure the set time from machine vibrations and it operates on 120 V AC source at 60 Hz, with a voltage tolerance of +10% and -5%. The timer’s motor consumes 2.45 VA at 120V AC and its clutch utilizes 10.5 VA for reliable actuation. Its output rating is 10 A at 120 V AC resistive load along with 5A at 240 V AC. The HA40 timer possess silver made contacts for improved conductivity and durability. It uses three sets of 15A contacts, these contacts can be configured in six different sequences. The unit has an electrical life rated as 250000 cycles at full load and its mechanical switch life reaches up to 5 million cycles. Its repetitive accuracy ranges from 0.05 seconds to 18 minutes while its reset time is 0.5 seconds at maximum setting. The HA40 timer’s power on pull in time averages 28 milliseconds and its power on drop out time averages 17 milliseconds.
The HA40A6 timer features an operating temperature range from -18 to +60 °C and it has vibration resistance of 2.5 G for 10 to 900 Hz on three axes. It is built with a rugged metal frame that mounts on panels using a front mounting configuration and its electrical connections are made through a rear terminal block. The HA40 timer weighs about 2 pounds and 14 ounces.
Frequently Asked Questions about HA40A6:
Q: How does the micrometer-scale dial on the HA40A6 improve timing precision?
A: The micrometer-scale dial provides a 20:1 turn ratio, permitting ultra-fine time adjustments. This ensures operators can dial in exact intervals with minimal error at full scale.
Q: Why is a synchronous motor used in the HA40A6 timer?
A: A synchronous motor ensures highly stable angular velocity, delivering consistent timing accuracy. This reliability is crucial over long durations, avoiding drift in reset cycles.
Q: How does the locking knob on the HA40A6 enhance its reliability?
A: The locking knob mechanically prevents dial movement during operation, protecting against vibration-induced drift. That secures timing settings even in high-speed or heavy-machinery environments.
Q: What benefit does the cycle progress pointer offer on the HA40A6?
A: The cycle pointer gives a visual, real-time indication of timing progress, aiding manual monitoring. This feature improves operational awareness without extra instrumentation.
Q: In what way does vibration resistance bolster the HA40A6’s performance?
A: The 2.5 G from 10–900 Hz, the HA40A6 tolerates substantial mechanical vibration. This rating ensures stable operation in heavy-duty industrial or mobile platforms.
