PRODUCTS
1/8 Din Timers
1/8 DIN Multi-Function Timer for Industrial Timing Control
ATC Diversified Electronics offers the 328E 1/8 DIN Multi-Range Multi-Function Timer for industrial machinery, process equipment, OEM controls, motors, pumps, packaging systems, and other applications requiring adjustable time-delay control. The 328E combines ON-delay, OFF-delay, and interval timing in a single 48 x 96 mm timer.
Six switch-selectable ranges cover timing periods from 50 milliseconds to 10 hours, allowing one timer to address both short machine sequences and longer process delays. A front-panel dial provides time adjustment, while an LED indicates when a timing cycle is in progress.
The 328E uses a plug-in 11-blade housing and can be installed with a compatible socket or optional flush-panel mounting kit. Its DPDT relay provides two changeover contact sets rated up to 10 amps for compatible control loads.
Why Choose the ATC 328E 1/8 DIN Timer?
Three Timing Functions: One timer provides selectable ON-delay, OFF-delay, and interval operation, reducing the need to stock a separate timer for each function.
Six Selectable Timing Ranges: Available ranges include 1 second, 10 seconds, 1 minute, 10 minutes, 1 hour, and 10 hours.
Timing from 50 Milliseconds to 10 Hours: Fine adjustment within the selected range allows the 328E to cover a broad span of industrial timing requirements.
Cycle-Progress Indication: A timing LED provides visual indication while the timer is progressing through an active delay.
DPDT Relay Output: Two Form C contact sets provide flexible switching for industrial control circuits, with contacts rated up to 10 amps for compatible loads.
Broad Supply Voltage: The 328E supports 24-240 VAC at 50/60 Hz and 24 VDC, helping simplify replacement and inventory requirements across different control systems.
Plug-In Construction: The 11-blade case plugs into a compatible socket, allowing the timer itself to be removed without rewiring the entire control circuit.
FM Approved: ATC identifies the 328E as FM Approved for applications where the applicable product approval is required.
ON-Delay, OFF-Delay and Interval Timing in One Device
In ON-delay mode, the 328E begins timing when the initiating condition occurs and transfers its delayed output after the selected period expires.
In OFF-delay mode, the timer maintains the applicable relay state for the selected delay after the control condition changes, according to the published 328E timing sequence.
In interval mode, the output is energized for the selected timing period and returns to its normal state when the interval is complete. Combining all three functions in one timer gives maintenance teams and panel builders more flexibility when application requirements vary.
Six Timing Ranges from Seconds to Hours
The 328E provides six switch-selected timing ranges: 1 second, 10 seconds, 1 minute, 10 minutes, 1 hour, and 10 hours. The minimum adjustable setting is generally 2% of the selected range, with a 50-millisecond minimum on the 1-second range.
This multi-range design allows a single 1/8 DIN timer to cover timing requirements that might otherwise require several fixed-range timer models.
1/8 DIN Plug-In and Panel-Mount Design
The 328E uses a 48 x 96 mm 1/8 DIN-size housing. Its 11-blade plug-in case mates with a compatible 11-terminal socket, and ATC also offers an optional socket and bracket kit for flush-panel installation.
The molded plastic housing is designed to resist dust, moisture, and impact, supporting use in industrial control and machine applications.
Industrial Applications for the 328E
The 328E can be used in industrial automation, packaging equipment, processing machinery, conveyors, material handling, motors and pumps, switchgear, heating systems, OEM machinery, and other applications where an adjustable timed control sequence is required.
Find the Right 328E Timer Configuration
When selecting the 328E multi-function time delay relay, consider the required timing function, delay period, supply voltage, load characteristics, relay-contact requirements, socket or panel mounting, control sequence, and any applicable approval requirements.
The 328E combines three common timing functions, six selectable ranges, broad AC/DC power capability, DPDT relay contacts, and plug-in construction in one 1/8 DIN industrial timer.
1/8 DIN Timer FAQs
What is a 1/8 DIN timer?
A 1/8 DIN timer is an industrial timing control built around the standardized 48 x 96 mm panel format. The ATC 328E uses this compact format while providing multiple timing functions and ranges in one device.
What 1/8 DIN timer does ATC offer?
ATC's current 1/8 DIN Timers collection contains the 328E Multi-Range Multi-Function Timer.
What timing functions does the 328E provide?
The 328E provides selectable ON-delay, OFF-delay, and interval operation in one timer.
What timing range does the 328E provide?
The 328E provides adjustable timing from 50 milliseconds to 10 hours across six switch-selected timing ranges.
What are the six timing ranges on the 328E?
The six ranges are 1 second, 10 seconds, 1 minute, 10 minutes, 1 hour, and 10 hours.
What is the minimum 328E timer setting?
The minimum setting is generally 2% of the selected timing range. On the 1-second range, the minimum specified setting is 50 milliseconds.
What is ON-delay timing?
ON-delay timing delays the transfer of the timed output after the initiating condition occurs. When the selected delay expires, the output changes state.
What is OFF-delay timing?
OFF-delay timing delays the return of the output after the initiating control condition changes. The exact sequence depends on the timer's wiring and published timing diagram.
What is interval timing?
Interval timing energizes the applicable output for a selected period and returns it to its normal state when the timing interval is complete.
Does the 328E show when it is timing?
Yes. The 328E includes a timing LED that provides visual cycle-progress indication while a timing sequence is active.
What type of relay output does the 328E have?
The 328E uses a DPDT relay output, providing two changeover contact sets. ATC specifies a maximum contact rating of 10 amps for compatible resistive loads.
What supply voltage does the 328E use?
The 328E supports 24-240 VAC at 50/60 Hz and 24 VDC according to ATC's published specifications.
Is the 328E a DIN rail timer?
The 328E is a 1/8 DIN-size timer, referring to its 48 x 96 mm housing format. It uses an 11-blade plug-in design and can be installed with a compatible socket or an optional flush-panel mounting kit. It is not the same mounting format as ATC's conventional DIN rail-mounted timer series.
How is the 328E mounted?
The 328E uses an 11-blade plug-in case that mates with a compatible 11-terminal socket. ATC also offers an optional socket and bracket kit for flush-panel mounting.
How accurate is the 328E?
ATC specifies repeat accuracy of ±0.5% of setting or 15 milliseconds over the specified voltage and temperature range, whichever applies, with setting accuracy specified at 10% of range.
Is the 328E FM Approved?
Yes. ATC identifies the 328E Multi-Range Multi-Function Timer as FM Approved.
Where is the 328E timer used?
Applications can include industrial automation, OEM machinery, packaging equipment, conveyors, material handling, process equipment, motors and pumps, switchgear, and other systems requiring adjustable ON-delay, OFF-delay, or interval timing.
How do I choose the correct 328E setup?
Determine whether ON-delay, OFF-delay, or interval operation is required, then select the appropriate timing range and setting. Also confirm supply voltage, contact load, socket or panel mounting, wiring arrangement, and any application-specific approval requirements.