Industrial Control Standards, Certifications and Compliance
ATC Diversified Electronics offers industrial timers, relays, motor and pump protection devices, monitoring controls, power supplies, controllers, and related products with a variety of safety certifications, product approvals, and regulatory compliance designations.
Depending on the specific product and part number, ATC products may carry or reference UL Listed, UL Recognized Component, cULus, UL 508, FM Approved, CSA, CE, RoHS, and REACH certifications or compliance designations.
These terms do not all mean the same thing. Some represent third-party product certification, some apply to components intended for integration into larger equipment, and others address conformity with specific regulatory requirements. Always review the product marking, specification sheet, declaration of conformity, and applicable documentation for the exact ATC model being specified.
UL Listed Industrial Controls
ATC offers a broad selection of UL Listed industrial controls, including selected timers, phase and voltage monitors, current monitors, alternating controllers, isolated switches, submersible pump monitors, power supplies, power meters, and related control products.
A UL Listed product has been evaluated as a complete product against applicable UL requirements within the scope of its certification. Certification still applies to the specific product and conditions covered by its listing, so the exact model should be verified when UL Listing is a project requirement.
UL Recognized Components
ATC also offers numerous UL Recognized Components, including timers, counters, controllers, current monitors, alternating relays, liquid-level controls, sockets, and other devices intended for integration into larger equipment or control systems.
UL Recognition is different from UL Listing. A UL Recognized Component is evaluated for use as part of a larger product or system and can be subject to defined Conditions of Acceptability governing how the component is installed and used.
View ATC UL Recognized Products
UL Listed vs. UL Recognized
UL Listed generally applies to complete products evaluated for their intended end use, while UL Recognized Component certification applies to components or subassemblies intended to become part of another product or system.
The distinction can be important for OEMs, panel builders, machine manufacturers, system integrators, and engineers selecting components for equipment that will undergo its own certification process.
UL 508 Industrial Control Equipment
Selected ATC products are identified with UL 508 certification information. UL 508 is associated with industrial control equipment and is relevant to many of the timers, relays, monitors, controllers, and power products used within industrial control systems.
Examples within the ATC portfolio include selected DIN rail time relays, current-monitoring relays, and industrial 24 VDC power supplies.
The exact certification and mark should be verified for the individual model rather than assuming that all products within a family carry the same certification.
cULus Certification
Selected products are identified as cULus Listed, indicating certification applicable to both U.S. and Canadian requirements within the scope shown by the certification mark.
For example, ATC identifies the ATCPWR Series Industrial 24V Power Supplies as cULus listed and also references UL 508 on the product family.
FM Approved Industrial Controls
ATC offers selected FM Approved timers and time delay relays. The current FM Approved product group includes the 322B Motor-Driven Analog Reset Timer, 328E Multi-Range Multi-Function Timer, and 339B Plug-In Adjustable Time Delay Relay.
FM Approvals evaluates products and systems against property-loss-prevention testing and certification requirements. An FM APPROVED mark applies within the scope of the specific certification and should not be interpreted as approval for every possible application.
CSA-Certified Industrial Components
Selected ATC products also carry CSA certification. Certification varies by model and product family.
For example, ATC identifies the 339B Plug-In Adjustable Time Delay Relay as CSA Approved, while selected ATC sockets are identified as CSA certified. Always verify the exact certification applicable to the part number being specified.
CE Marking and EU Conformity
Selected ATC products carry the CE marking or have corresponding EU declarations of conformity.
CE marking indicates that the manufacturer declares the product conforms with the applicable European Union requirements that require CE marking. It is not the same type of certification as a UL Listing or FM Approval.
ATC makes EU conformity documentation available for selected products, including certain timer and control families.
RoHS Compliance
Selected ATC products are identified as RoHS compliant. RoHS requirements restrict specified hazardous substances in electrical and electronic equipment within the applicable regulatory scope.
ATC products such as selected DIN rail timers, current monitors, and power supplies are identified on their product pages as RoHS compliant. Compliance should be confirmed for the exact model required by the application.
REACH Compliance
Selected ATC products are also identified as REACH compliant. REACH is the European Union framework governing the registration, evaluation, authorization, and restriction of chemicals and includes obligations concerning certain substances present in manufactured articles.
ATC provides REACH compliance information and, for selected product families, supporting declarations through its technical literature.
Product Certification Is Model-Specific
A certification or compliance designation shown on one ATC product should not automatically be applied to another product, even when both products perform similar functions or belong to the same general category.
Certifications can vary according to part number, supply voltage, contact configuration, enclosure, manufacturing configuration, intended market, and product revision.
When compliance is part of an engineering specification, purchasing requirement, OEM qualification, or panel certification, verify the documentation for the exact part number before ordering.
Standards for OEMs and Panel Builders
OEMs, machine builders, and panel manufacturers frequently need components that meet specific certification requirements as part of a larger equipment-design or certification process.
UL Recognized Components can be particularly relevant in this context because they are evaluated for integration into larger products subject to defined conditions of acceptability. UL Listed products may be appropriate where a complete certified device is required.
ATC application engineers and product managers can help identify products whose functions and available certifications align with the requirements of the application.
How to Verify an ATC Product Certification
Begin with the specific ATC product page and specification sheet. Look for the certification or compliance information associated with the exact product family and part number.
Depending on the certification, additional verification may include the product marking, UL certification information, FM Approval documentation, EU Declaration of Conformity, or manufacturer compliance documentation.
If a standard, certification, or regulatory requirement is mandatory for your project, contact ATC before ordering to confirm that the selected configuration meets the requirement.
Find an ATC Product That Meets Your Application Requirements
Product selection should begin with the required control function, such as timing, counting, phase monitoring, current monitoring, motor protection, pump control, power conversion, electrical measurement, or process monitoring.
Then evaluate supply voltage, inputs, outputs, mounting, electrical ratings, environment, communications, and the certifications or regulatory requirements that apply to the finished equipment.
Because standards and approvals vary by product, use the certification information for the exact ATC model as part of the final engineering and purchasing review.
ATC Standards and Certification FAQs
What standards and certifications are available on ATC products?
Depending on the product and part number, ATC products may carry or reference UL Listed, UL Recognized Component, cULus, UL 508, FM Approved, CSA, CE, RoHS, and REACH certifications or compliance designations.
Does every ATC product have the same certifications?
No. Certification and compliance vary by product family, configuration, and part number. Always verify the applicable documentation for the exact product being specified.
What does UL Listed mean?
UL Listed generally identifies a complete product that has been evaluated by UL Solutions to applicable requirements within the scope of its certification and intended use.
What is a UL Recognized Component?
A UL Recognized Component is a component or subassembly evaluated for use within a larger product or system. Its use can be subject to specific Conditions of Acceptability.
What is the difference between UL Listed and UL Recognized?
UL Listed generally applies to complete products evaluated for their intended end use. UL Recognized Component certification applies to components intended to be incorporated into larger equipment under specified conditions.
Does ATC offer UL Listed products?
Yes. ATC offers UL Listed products across categories including timers, phase monitors, current monitors, alternating controllers, isolated switches, submersible pump monitors, power supplies, and power measurement products.
Does ATC offer UL Recognized products?
Yes. ATC offers many UL Recognized timers, counters, relays, controllers, current monitors, liquid-level controls, sockets, and related industrial components.
What is UL 508?
UL 508 is associated with industrial control equipment. Selected ATC timers, monitoring relays, power supplies, and other controls are identified with UL 508 certification information.
Is "UL Approved" the same as UL Listed?
Not necessarily. UL Solutions uses formal certification designations such as UL Listed, UL Classified, and UL Recognized Component. When an ATC product page uses wording such as UL 508 approved, verify the actual certification mark and documentation for that product.
What does cULus Listed mean?
A cULus certification mark indicates that the product has been certified within the applicable scope for both United States and Canadian requirements.
Does ATC offer FM Approved products?
Yes. ATC's current FM Approved product group includes the 322B Motor-Driven Analog Reset Timer, 328E Multi-Range Multi-Function Timer, and 339B Plug-In Adjustable Time Delay Relay.
What does FM Approved mean?
FM Approval is third-party certification based on property-loss- prevention testing and certification requirements. The FM APPROVED mark applies within the scope of the specific product or performance characteristic that was evaluated.
Does FM Approval mean a product is suitable for every safety application?
No. FM Approval applies to the specific scope of the certification. Application requirements and the exact approval documentation should be reviewed before specifying the product.
Does ATC offer CSA-certified products?
Yes. Selected ATC products carry CSA certification. Certification varies by model, so the exact product documentation should be checked.
What does CE marking mean?
CE marking indicates that the manufacturer declares a product conforms with the applicable European Union requirements that require CE marking. It allows qualifying products to be placed on the applicable European Economic Area market.
Is CE marking the same as a UL Listing?
No. CE marking is a European regulatory conformity marking and is not the same type of third-party product certification as UL Listing.
Does ATC provide EU Declarations of Conformity?
ATC provides EU conformity documentation for selected products. Availability should be confirmed through the applicable product page or technical literature for the exact model.
What does RoHS compliant mean?
RoHS compliance indicates conformity with applicable restrictions on specified hazardous substances in electrical and electronic equipment within the scope of the relevant regulation.
Are ATC products RoHS compliant?
Selected ATC products are identified as RoHS compliant, including certain DIN rail timers, current monitors, and industrial power supplies. Verify compliance for the exact part number.
What is REACH compliance?
REACH is the European Union regulatory framework concerning chemicals and includes requirements related to substances used in mixtures and manufactured articles. Selected ATC products are identified as REACH compliant.
Are ATC products REACH compliant?
Selected ATC products are identified as REACH compliant. Check the specific product page or applicable declaration for the exact model.
Why is certification important for OEMs and panel builders?
OEMs and panel builders may need components that meet specific certification requirements as part of a larger machine, control panel, or end-product certification process. Selecting appropriately certified components can therefore be an important part of system design.
Can I assume all products in an ATC product family have the same approval?
No. Certifications can vary by model, part number, voltage, configuration, revision, and intended market. Verify the exact product before specifying it.
How can I verify an ATC product's certification?
Review the product page, specification sheet, product marking, and applicable certification or conformity documentation. If the certification is mandatory for the application, confirm it with ATC for the exact part number before ordering.
Where can I find ATC certification documents?
Certification and compliance information is available through ATC product pages, specification sheets, literature, and applicable declarations of conformity. Contact ATC if a required document is not available online.
