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Two Industrial Control Brands, One Complete Product Portfolio

ATC Diversified Electronics brings together two established industrial-control divisions: Automatic Timing & Controls and Diversified Electronics.

Together, these product lines support applications involving industrial timing, automation, counters, temperature control, motor and pump protection, phase and voltage monitoring, current monitoring, alternating control, electrical safety, power quality, and process monitoring.

The two divisions complement one another. Automatic Timing & Controls provides a broad range of timing and automation products, while Diversified Electronics expands the portfolio into electrical monitoring, motor protection, pump control, power quality, and related industrial-control technologies.

Automatic Timing & Controls

Automatic Timing & Controls specializes in industrial timing and automation products used by machine designers, process engineers, OEMs, panel builders, maintenance teams, and industrial facilities.

Product families include industrial timers, time delay relays, DIN rail timers, panel-mounted digital timers, electromechanical timers, percentage timers, counters, timer/counters, PID and temperature controllers, sensors, relays, and industrial power supplies.

Depending on the product, available control functions include ON-delay, OFF-delay, true OFF-delay, interval, single-shot, repeat-cycle, flasher, percentage timing, preset counting, batch counting, totalizing, multifunction timing, and temperature control.

Industrial Timing and Automation

Automatic Timing & Controls products support applications requiring repeatable time-based or count-based control. Available formats include plug-in, panel-mounted, DIN rail, 1/16 DIN, 1/4 DIN, electromechanical, digital, and solid-state controls.

This range allows engineers to select a control according to the required timing function, voltage, output contacts, mounting format, timing range, display, memory, input method, and application environment.

Industrial Timers and Time Delay Relays

ATC offers timer families for applications ranging from simple fixed or adjustable delays to complex multifunction timing sequences.

Available products include DIN rail timers, plug-in time delay relays, solid-state timers, electromechanical timers, repeat-cycle timers, interval timers, weekly timers, percentage timers, and programmable digital timers.

Different products provide functions such as ON-delay, OFF-delay, true OFF-delay, interval, delayed interval, single-shot, repeat-cycle, asymmetric cycling, flashing, and percentage-based control.

Industrial Counters and Timer/Counters

Automatic Timing & Controls also offers predetermining counters, single and dual preset counters, multifunction counters, hour meters, and combined timer/counter controls.

Depending on the model, available capabilities include high-speed counting, batch counting, totalizing, programmable scaling, count-up or count-down operation, multiple setpoints, frequency measurement, tachometer functions, and timer/counter combination modes.

Temperature and Process Control

ATC temperature-controller families provide PID and ON/OFF temperature control for compatible thermocouple and RTD inputs.

Depending on the controller, features can include auto-tuning, relay or solid-state outputs, multiple setpoints, heat/cool control, ramp-and-soak functions, digital displays, and communications.

Diversified Electronics Division

Diversified Electronics specializes in products for motor and pump protection, electrical monitoring, phase and voltage protection, current monitoring, alternating control, intrinsically safe interfacing, power quality, and industrial electrical safety.

The division's product families support motors, pumps, compressors, conveyors, HVAC systems, water and wastewater equipment, lift stations, industrial machinery, and other applications where abnormal electrical conditions or load behavior must be monitored.

Phase and Voltage Monitoring

Diversified Electronics offers single-phase and three-phase voltage and phase monitoring products for applications requiring supervision of incoming power.

Depending on the model, monitored conditions can include phase loss, phase reversal, undervoltage, overvoltage, voltage unbalance, improper phase sequence, rapid cycling, and frequency conditions.

These products range from dedicated phase-monitor relays to more advanced multifunction monitoring devices.

Motor and Pump Protection

Diversified Electronics provides products designed specifically for motor- and pump-driven systems.

Available technologies include phase monitors, current monitors, submersible-pump seal and temperature monitors, motor-protection analyzers, alternating pump controllers, and advanced motor-monitoring systems.

Depending on the product, monitored conditions can include overload, undercurrent, overvoltage, undervoltage, phase loss, phase reversal, voltage or current unbalance, frequency deviation, seal failure, over-temperature conditions, and other electrical operating parameters.

Alternating Relays and Pump Controllers

Diversified Electronics offers duplex, triplex, quadraplex, expandable, and special-function alternating relays and controllers.

These products can be used to distribute operating time between multiple pumps or loads and, depending on the model, provide lead/lag sequencing, demand staging, lead selection, load omission, alarm outputs, Hand-Off-Auto controls, and intrinsically safe control inputs.

Current Monitoring and True-Power Monitoring

Current-monitoring products allow compatible machinery and electrical loads to be monitored for overcurrent, undercurrent, or acceptable current-band operation.

Diversified Electronics also offers true-power monitoring for applications where actual motor power consumption provides more useful information about mechanical loading than current alone.

Power Quality and Electrical Measurement

ATC Diversified Electronics offers products for voltage, current, frequency, power factor, active power, reactive power, apparent power, energy, and harmonic monitoring, depending on the selected instrument.

Available products range from multifunction power meters to motor-protection analyzers and industrial 24 VDC power supplies.

Intrinsically Safe Control Interfaces

Diversified Electronics offers isolated switches and selected pump controllers with intrinsically safe field-control inputs for compatible hazardous-location systems.

Products include single- and multiple-channel isolated switches as well as multi-pump controllers used in applications such as lift stations, wet wells, wastewater systems, tanks, and industrial processes.

Intrinsic safety applies to the complete installed circuit. Field devices, wiring, entity parameters, associated apparatus, control drawings, and installation requirements must all be evaluated for the specific system.

Advanced Motor Monitoring

The Diversified Electronics portfolio also includes advanced products such as the MPA2 Motor Protection Analyzer and Motor Director™ Advanced Motor Monitoring and Protection System.

These systems expand beyond basic phase monitoring by providing additional electrical measurements, configurable protective functions, communications, operating data, and condition-monitoring capabilities depending on the selected system.

Remote Process Monitoring

ATC also offers SENSERT® remote process monitoring technology for collecting data from compatible sensors and providing remote access to monitored conditions.

Compatible measurements can include temperature, humidity, vibration, pressure, and other process variables depending on the connected sensor and system configuration.

Products for OEM and MRO Applications

The combined ATC portfolio supports both original equipment manufacturers and maintenance, repair, and operations customers.

OEMs can work with ATC application engineers and product managers to evaluate standard products, modifications, or custom controls. Maintenance teams can use ATC's established product families to identify replacement timers, relays, monitors, controllers, and other industrial components for existing equipment.

Application Engineering and Custom Solutions

ATC application engineers can help evaluate requirements such as supply voltage, timing sequence, monitored electrical condition, contact rating, load, mounting, sensor interface, communications, environmental conditions, and required control logic.

When a standard product does not match the application, ATC can evaluate modifications to an existing design or determine whether an application-specific control is appropriate.

Industries Served by ATC Brands

Automatic Timing & Controls and Diversified Electronics products are used across industrial automation, OEM machinery, manufacturing, packaging, material handling, plastics, food processing, HVAC, motors and pumps, water and wastewater, oil and gas, utilities, process equipment, conveyors, and control-panel applications.

The appropriate product should always be selected around the actual electrical, functional, environmental, and installation requirements of the application.

The Power of Two ATC Divisions

Automatic Timing & Controls and Diversified Electronics provide complementary product technologies under the ATC Diversified Electronics portfolio.

Choose Automatic Timing & Controls when the primary requirement involves timing, counting, temperature control, or general industrial automation. Look to Diversified Electronics when the application requires motor or pump protection, phase or current monitoring, load alternation, electrical measurement, intrinsically safe interfacing, or advanced motor monitoring.

For applications that cross both categories, ATC application support can help identify the combination of products appropriate for the system.

ATC Brands FAQs

What brands make up ATC Diversified Electronics?

The ATC Diversified Electronics portfolio brings together Automatic Timing & Controls and Diversified Electronics.

What is Automatic Timing & Controls?

Automatic Timing & Controls is the ATC division focused primarily on industrial timers, counters, timing controls, temperature controllers, and related automation products.

What is Diversified Electronics?

Diversified Electronics is the ATC division focused on motor and pump protection, phase and voltage monitoring, current monitoring, alternating control, isolated switching, electrical safety, and power-quality products.

Are Automatic Timing & Controls and Diversified Electronics separate companies?

They operate as complementary divisions within the ATC Diversified Electronics product portfolio and are part of the Marsh Bellofram organization.

What products does Automatic Timing & Controls offer?

Product families include industrial timers, time delay relays, percentage timers, electromechanical timers, digital timers, DIN rail timers, counters, timer/counters, PID controllers, temperature controllers, sensors, relays, and power supplies.

What products does Diversified Electronics offer?

Product families include phase and voltage monitors, current monitors, motor-protection systems, alternating relays and pump controllers, isolated switches, seal-failure and over-temperature monitors, power-quality products, and advanced motor-monitoring systems.

Which ATC division should I use for industrial timers?

Automatic Timing & Controls is the primary ATC division for industrial timers, time delay relays, digital timers, percentage timers, repeat-cycle timers, and related timing products.

Which ATC division should I use for industrial counters?

Automatic Timing & Controls offers predetermining counters, single- and dual-preset counters, multifunction counters, hour meters, and timer/counter products.

Which ATC division should I use for motor protection?

Diversified Electronics is the primary division for phase monitoring, current monitoring, motor-protection relays, motor analyzers, pump-protection products, and advanced motor-monitoring systems.

Does ATC offer phase and voltage monitors?

Yes. Diversified Electronics offers multiple phase and voltage monitor families for compatible single-phase and three-phase applications.

What electrical conditions can Diversified Electronics products monitor?

Depending on the product, monitored conditions can include phase loss, phase reversal, undervoltage, overvoltage, voltage unbalance, current unbalance, undercurrent, overload, frequency deviation, and other electrical operating conditions.

Does ATC offer pump-control products?

Yes. Diversified Electronics offers duplex, triplex, quadraplex, expandable, and special-function alternating relays and controllers for compatible pump and multi-load applications.

Does ATC offer intrinsically safe components?

Yes. Diversified Electronics offers single- and multiple-channel isolated switches and selected pump controllers with intrinsically safe inputs for compatible hazardous-location field circuits.

Does ATC offer power-quality products?

Yes. The portfolio includes products for monitoring voltage, current, frequency, power factor, real and reactive power, energy, true motor power, and harmonic distortion, depending on the selected product.

Does ATC offer remote process monitoring?

Yes. SENSERT® provides remote process monitoring for compatible sensors and can provide access to measurements such as temperature, humidity, vibration, pressure, and other process variables.

Does ATC support OEM applications?

Yes. ATC works with OEM customers to evaluate standard products, product modifications, and custom industrial-control solutions when existing products do not fully meet the application requirements.

Can ATC help with replacement products for older equipment?

Yes. ATC supports MRO and replacement applications. The original control's voltage, function, output contacts, timing or monitoring range, mounting, and operating sequence should be compared with any proposed replacement.

Does ATC provide application engineering support?

Yes. ATC application engineers can help evaluate timing, monitoring, voltage, load, mounting, control logic, communications, sensor, and environmental requirements for an application.

Can ATC modify an existing product?

Yes. ATC states that its application engineers and product managers can evaluate modifications to existing products when a standard configuration does not meet the application.

Does ATC develop custom industrial controls?

Yes. When a standard product does not fit, ATC can evaluate a custom solution. Its Specials portfolio includes examples of previously engineered voltage monitors, timers, power monitors, relay controls, and other application-specific products.

What industries use ATC products?

Applications include industrial automation, manufacturing, OEM equipment, packaging, material handling, plastics, food processing, HVAC, motors and pumps, water and wastewater, oil and gas, utilities, conveyors, process equipment, and control panels.

How do I know which ATC division to contact?

Automatic Timing & Controls is generally the best starting point for timing, counting, temperature control, and automation products. Diversified Electronics is generally the best fit for motor and pump protection, electrical monitoring, alternating control, power quality, and intrinsically safe interfacing. ATC application support can help when an application crosses both areas.


Automatic Timing & Controls

Automatic Timing & Controls is known for its highly rugged timers, counters, and PID controllers that are engineered to provide accurate and repeatable timing and monitoring operations in all types of industrial environments.

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Diversified Electronics Division

ATC Diversified Electronics offers a broad range of automation, motor protection, electrical safety, and power quality devices. As a leader in solid state control products, we pioneered the industry’s first phase monitor relay designed to protect three-phase equipment from adverse conditions such as phase loss (single phasing), under voltage (brown-outs), and phase reversal (improper sequence).

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