Noark Electric’s Definite Purpose Contactors Achieve UL Certification with A2L Refrigerant

October 4, 2023

Noark Electric’s Definite Purpose Contactors Achieve UL Certification with A2L Refrigerant

UL Certification aligns with HVAC industry’ mandate to reduce Global Warming Potential (GWP) and confirms that you can use these components in your system without further evaluation.

Noark Electric’s Definite Purpose Contactors

Noark Electric’s Definite Purpose Contactors are electrically operated switching devices designed for switching on and off heating, ventilation, and air conditioning (HVAC) applications and to handle high current circuits for specialized inductive and resistive loads. These loads include compressors, pumps, transformers, and electric heating and lighting applications.

Each Noark definite purpose contactor is designed to meet or exceed industry standards in various application types, ensuring that the equipment being controlled operates efficiently and safely. In addition, they are proud to announce that they have achieved UL certification with A2L refrigerant.

Applications for Definite Purpose Contactors:
  • HVAC (commercial and residential)
  • Refrigeration
  • Pumps and compressors
  • Transformers
  • Electric heating and lighting
  • Specialty control
EX9CK Series 20A to 90A definite purpose contactor features:
  • One, two, and three pole configurations
  • Screw type or lug terminal options
  • Power pole and Coil quick connect terminal (QCT) options
  • Coil voltages from 24 to 600Vac

For more information, visit the EX9CK Series product page

EX9CKT Series 20A to 40A definite purpose contactor features:
  • One, two, three, and four pole configurations
  • Screw type or lug terminal options
  • Power pole and Coil quick connect terminal (QCT) options
  • Coil Voltages from 24 to 600Vac

For more information, visit the EX9CKT Series product page

Noark Electric UL Certification Solutions

Noark Electric is a global manufacturer of low-voltage electrical components used by Electrical and Machinery OEMs (original equipment manufacturers) in industrial applications, including motor controls and protection. Their mission has always been to provide their customers with the highest quality products at an exceptional value, backed with world-class service and support. Every Noark product is tested and certified to the highest industry standards and is covered by their exclusive five-year limited warranty. Now, Noark can add UL Solutions certification to their line of definite purpose contactors and these components can be used in your systems without further evaluation.

UL Solutions delivers testing, inspection, and certification services, together with software products and advisory offerings, that support their customers’ product innovation and business growth. The UL Certification mark is a recognized symbol of trust and commitment to safety that customers can rely on when considering various products. This achievement testifies that Noark’s definite purpose contactors can be used in your system without further evaluations.

Why A2L Refrigerant?

The goal to reduce global warming will require a global approach, and many calls to action are being implemented or are already in effect around the world. For example, in support of the Kigali Amendment to the Montreal Protocol and the Paris Climate Agreement, an area of focus is on the reduction of potent greenhouse gas emissions such as the hydrofluorocarbon (HFC) refrigerants in the atmosphere. This mandate is prevalent around the globe, where measures are curtailing the use of these products.

The air conditioning and refrigeration industry has been actively working since 2006 to develop a new classification of refrigerants, known as A2L, to meet the lower Global Warming Potential (GWP) challenge. While having slightly higher flammability characteristics as compared to traditional A1 refrigerants, A2Ls are much harder to ignite and are much less flammable than A3 hydrocarbon refrigerants.  

A new standard was created for certain components, for example arcing/sparking electrical components used in A2L flammable refrigerant systems. These components can have a higher risk of igniting the refrigerant. According to UL 60335-2-40, it provides the testing to certify that these components comply with  Flame Arrest-Protected component’s standard in ignition and explosion proof systems.

The Current Updates According to UL Solutions:

UL 60335-2-40 3rd Edition is an ANSI/SCC approved standard covering electrical heat pumps, air-conditioners, and dehumidifiers. Further, it is a binational standard (U.S. and Canada) that is based on the international IEC 60335-2-40 standard. IEC 60335-2-40 is currently being used as the basis for the design, evaluation, testing and certification of HVAC equipment using Low GWP refrigerants in places like Europe. Overall, UL 60335-2-40 has adopted more conservative safety requirements than the IEC standard to address the unique product usage of the North American market.

Noark Electric, Your First Choice for Definite Purpose Contactors

Noark Electric’s definite purpose contactors are designed for specialty applications such as commercial and residential HVAC, refrigeration, pumps and compressors, and other specialty controls. With their recent UL Certification and A2L refrigeration, you can rest assured that these will be safe and reliable for your application.

Moreover, make sure to sign up for the Noark Newsletter to receive exclusive monthly updates on new products, free resources, and more!


Related Product

Noark’s MCCB’s Achieve Freeze Test to –40°C

Noark Electric manufactures top-quality low-voltage electrical components including molded case circuit breakers (MCCBs) for many applications. In heavy commercial applications and industrial facilities, MCCBs are relied upon to protect against electrical damage caused by short circuits or overload conditions. Since they have a high interrupting capacity, they can handle larger loads than these processes require. Because of their importance in buildings and infrastructure, it is critical that they undergo and pass stringent testing to ensure they function properly when needed the most. In this blog, Noakr looks at why Noark’s MCCBs are tested to –40°C ambient condition.

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