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72mm Timers
72mm Digital Timers for Industrial Process and Machine Control
ATC Diversified Electronics offers a range of 72mm digital timers for industrial automation, OEM equipment, process machinery, packaging systems, conveyors, motors, pumps, and other applications requiring accurate panel-mounted timing control.
The collection includes programmable timers, digital reset timers, long-range computing timers, timers with memory, and a combined digital timer/counter. Depending on the model, available capabilities include timing from hundredths of a second through hundreds of hours, time-up or time-down displays, instantaneous and delayed outputs, repeat-cycle timing, cycle-progress indication, EEPROM memory, and counting functions.
ATC 72mm timers are designed for panel applications where operators need clear timing information and straightforward adjustment. Selected models also use plug-in housings that allow the timer to be replaced without disturbing existing field wiring.
Why Choose ATC 72mm Timers?
Compact 72mm Panel Format: The 72mm DIN-size housing provides digital timing capability in a compact panel-mounted package for industrial equipment and control systems.
Wide Timing Ranges: Selected models provide timing from 0.01 second through 999 hours, allowing one timer to cover both short machine sequences and extended process timing.
Digital Timing Displays: Depending on the model, digital displays provide clear indication of elapsed time, remaining time, presets, counts, or cycle progress.
Plug-In Serviceability: Selected 72mm timers use plug-in panel housings so the timer can be removed or replaced without disconnecting the field wiring.
Memory Options: Models such as the 365M and 385A provide memory functions for applications where programmed information or cycle status must be retained.
Timer and Counter Capability: The 385A combines repeat-cycle timing and counting in one control, providing additional flexibility for production, batching, machine-cycle, and process applications.
353C and 355C Shawnee II 72mm Timers
The 353C Shawnee II Digital Programmable Timer is packaged in a compact 72mm DIN-size housing and provides digital programmable timing, cycle-progress indication, noise immunity, repeatable operation, and a plug-in, dust-tight design.
The 355C Shawnee II Digital Reset Timer provides a compact digital reset-timer format with cycle-progress indication, a wide timing range, plug-in construction, and specified repeat accuracy of ±10 milliseconds.
365C Long-Ranger Computing Timer
The 365C Long-Ranger Computing Timer is a microprocessor-based digital timer with an adjustable range from 0.01 second to 999 hours. Three rotary controls are used to set the preset value, while decimal position and timing range are switch-selectable.
A high-intensity vacuum fluorescent display can be configured for time-up or time-down operation. Two 7-amp DPDT relays provide instantaneous, interval, or delayed output control, and the plug-in panel design allows replacement without removing field wiring.
365M 72mm Timer with Memory
The 365M Long-Ranger Computing Timer with Memory adds EEPROM memory and a magnetic latching relay to the 72mm digital-timer platform. Nine selectable timing ranges support seconds, minutes, or hours, while the display can operate in time-up or time-down mode.
Its plug-in construction supports quick timer replacement, and the housing is gasketed and O-ring sealed for protection against dust and water entry according to the product design.
385A Digital Timer / Counter with Memory
The 385A Digital Timer / Counter with Memory combines two control functions in one 72mm device. In timer mode, it operates as a two-setpoint repeat-cycle timer with timing from 0.01 second to 999 hours across nine ranges.
In counter mode, the 385A supports counting from 1 to 99,900 counts across two ranges. Additional features include EEPROM memory, adjustable presets, an internal cycle totalizer, dual LED displays with cycle progress, multiple starting options, and dual DPDT relay outputs.
72mm Timers for Industrial Applications
ATC 72mm timers can be applied to machine sequencing, packaging equipment, material handling, conveyors, food and beverage equipment, processing machinery, motors, pumps, production systems, and other applications where operators need clear digital timing or counting information at the control panel.
Find the Right 72mm Timer
Selecting the right 72mm industrial timer depends on the required timing range, number of setpoints, output configuration, memory requirements, display preference, repeat-cycle needs, counting functions, mounting arrangement, reset method, and how the timer must interact with the machine or process.
Explore the ATC 72mm timers above to compare programmable, reset, long-range, memory, and timer/counter configurations for new equipment, industrial automation, and existing panel-mounted timing applications.
72mm Timer FAQs
What is a 72mm timer?
A 72mm timer is a panel-mounted industrial timing control packaged in a compact 72mm DIN-size housing. ATC 72mm timers provide digital timing, display, output, memory, and counting capabilities depending on the selected model.
What 72mm timers does ATC offer?
ATC currently offers the 353C Shawnee II Digital Programmable Timer, 355C Shawnee II Digital Reset Timer, 365C Long-Ranger Computing Timer, 365M Long-Ranger Computing Timer with Memory, and 385A Digital Timer / Counter with Memory in the 72mm timer category.
What is the ATC 353C Shawnee II Digital Programmable Timer?
The 353C is a compact digital programmable timer in a 72mm DIN-size housing. It provides cycle-progress indication, repeatable timing, noise immunity, and a plug-in, dust-tight design.
What is the ATC 355C Digital Reset Timer?
The 355C is a compact 72mm digital reset timer with cycle-progress indication, a wide timing range, plug-in construction, and specified repeat accuracy of ±10 milliseconds.
What timing range does the 365C provide?
The 365C Long-Ranger Computing Timer provides an adjustable timing range from 0.01 second through 999 hours. The preset can be entered as a three-digit value with switch-selectable decimal position and time range.
Can the 365C display elapsed or remaining time?
Yes. The 365C vacuum fluorescent display can be configured for either time-up or time-down operation.
What outputs does the 365C provide?
The 365C includes two 7-amp DPDT relay outputs that can provide instantaneous, interval, or delayed output control depending on the configuration.
What is the difference between the 365C and 365M?
Both are 72mm Long-Ranger computing timers. The 365M adds EEPROM memory and a magnetic latching relay and provides nine selectable timing ranges in seconds, minutes, or hours. The 365M also uses a gasketed, O-ring-sealed housing.
What is EEPROM memory in a digital timer?
EEPROM is nonvolatile electronic memory that can retain stored information without continuous power. Selected ATC timers use EEPROM memory where retention of programmed or operating information is required.
Can a 72mm timer also function as a counter?
Yes. The 385A can operate as either a digital timer or counter. In timer mode it provides repeat-cycle timing, while counter mode allows the control to respond to accumulated input counts.
What timing range does the 385A provide?
In timer mode, the 385A covers an overall span from 0.01 second to 999 hours across nine selectable timing ranges. It can also display timing in hours and minutes or minutes and seconds.
What counting range does the 385A provide?
In counter mode, the 385A can cover an overall range from 1 to 99,900 counts using two selectable counting ranges.
What is repeat-cycle timing?
Repeat-cycle timing creates a repeating operating sequence instead of completing only one timed event. The 385A can operate as a two-setpoint repeat-cycle timer for applications requiring recurring timed control.
Are ATC 72mm timers plug-in devices?
Several models use plug-in construction. For example, the 365C can be removed from its panel housing without disconnecting field wiring, and the 365M is designed as a true plug-in timer for quick replacement.
Where are 72mm digital timers used?
Applications can include packaging equipment, conveyors, material handling, machine sequencing, processing machinery, production equipment, motors, pumps, and other industrial systems requiring panel-mounted digital timing or counting.
How do I choose the right ATC 72mm timer?
Consider the required timing range, output configuration, number of setpoints, need for time-up or time-down indication, memory requirements, counting capability, repeat-cycle operation, reset method, mounting requirements, and compatibility with the existing machine or control panel.