HP56A616

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The HP56A616 timer features a reset timer function, a supply voltage of 120 VAC at 60 Hz, a full-scale time of 60 minutes, and an electrical life of 250,000 operations at full load. Part of the Timers series by Danaher, it has a pull-in time of 28 ms and a vibration resistance of 2.5 G.

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Product Description:

The HP56A616 is an electromechanical reset timer from Danaher that is developed for industrial timing applications where accuracy and durability is required. It is part of the HP5 Cycl-Flex series and it employs a synchronous motor-driven system that maintains timing precision through direct synchronization with the 60 Hz AC line frequency.

The HP56A616 timer supports a full-scale timing capacity of 60 minutes, with a calibrated dial that provides 1-minute divisions for adjustment and its minimum selectable setting is 2 minutes. Its design integrates a red pointer to display timing progress during operation and its reset function has a 0.5 second recovery time that ensure the device is ready for immediate reactivation in repeated cycles. This unit operates on a 120 VAC supply and its motor burden is specified as 2.45 VA, while the clutch consumes 10.5 VA of power that reflects low power consumption for extended service within control circuits. It is rated for resistive loads of 10 A at 120 VAC and 5 A at 240 VAC. The HP56 timer has an electrical life expectancy of about 250,000 operations under full load and extends to 5,000,000 cycles at 1 A for long-term operational reliability. Its response characteristics include a pull-in time of 28 milliseconds when energized and a drop-out time of 17 milliseconds on power loss.

The HP56A616 timer is built to withstands vibrations up to 2.5 G that confirms suitability for industrial environments and its construction includes 15 screw-type terminals for secure electrical connections. Its molded ABS housing provides insulation and structural integrity. The timer weighs around 2 lb. 14 oz and its plug-in Cycl-Flex housing design allows interchangeability with compatible modules as well as simplifies panel-level servicing without rewiring.

Clutch Burden
10.5 VA
Dial Division
1 min
Drop-out Time (power Off)
17 ms
Electrical Life At 1 A
5,000,000 cycles
Electrical Life At Full Load
250,000 operations
Full Scale Time
60 min
Function Type
Reset Timer
Minimum Dial Setting
2 min
Motor Burden
2.45 VA
Output Rating (120 Vac Resistive)
10 A
Output Rating (240 Vac Resistive)
5 A
Pull-in Time (power On)
28 ms
Reset Time
0.5 s
Supply Frequency
60 Hz
Supply Voltage
120 VAC

Frequently Asked Questions about HP56A616:

Q: How does the synchronous motor in the HP56A616 enhance timing accuracy?

A: The synchronous motor locks with the 60 Hz AC line frequency, which eliminates drift and ensures stable timing performance under varying electrical conditions.

Q: Why is the red pointer on the HP56A616 timer useful in operation?

A: The red pointer gives real-time visual tracking of elapsed time, allowing operators to quickly monitor and adjust cycle progress during critical industrial processes.

Q: What advantage does the 0.5-second reset recovery time of HP56A616 provide?

A: This short recovery enables rapid cycle reactivation, improving efficiency in repetitive control applications like sequencing or batch processing.

Q: How does the plug-in Cycl-Flex housing design benefit users?

A: It allows quick replacement or interchangeability with other Cycl-Flex timers without rewiring, minimizing downtime during maintenance.

Q: Why is vibration resistance up to 2.5 G significant for the HP56A616?

A: It allows the timer to remain reliable in heavy-duty environments such as stamping presses, conveyors, and rotating machinery.


Internal Product Review

  • ‘‘The HP56A616 is an electromechanical reset timer that is designed for industrial control. It offers a 60-minute timing range, 0.5-second reset recovery and rugged ABS housing with 15 screw terminals. This timer is widely applied in conveyor systems, process sequencing, and industrial machinery requiring synchronized cycle timing.’’

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