Macromatic Plug-in Products UL Listed with Sockets

General Information


What is the difference between “UL Listed” & “UL Component Recognized”?


We are often asked several questions regarding our plug-in products & UL certifications:

“Why are some products only UL Component Recognized instead of UL Listed”, and  “What is the difference between UL Component Recognized & UL Listed”? 

Some products require additional components, such as sockets or crimp terminals, for installation. Since UL cannot control what specific components will be used for installation by the end user of the product, they grant Component recognition on the product instead of UL Listing. UL defines this as follows: “UL’s Component Recognition Service covers the testing and evaluation of component products that are incomplete…”.

Macromatic products having UL component recognition have passed the same safety related product testing as those that are UL Listed, they simply need to be installed properly per UL requirements. This is most often achieved by installing using appropriate UL recognized components. UL Listing can ultimately be granted to the final installation once it is determined, by UL, to be compliant.

Certain Macromatic products, including plug-in style relays, will be both UL Listed  and UL Component Recognized. In these cases, the components and conditions of installation required for UL Listing are specified and provided with the product. If alternate installation methods are used, the product still qualifies for UL component recognition but not UL Listing.

Macromatic plug-in style products, the  appropriate socket for UL Listing is specified on the product nameplate just below the UL Listed mark. This indicates that UL has Listed the combination of the Macromatic plug-in product and the appropriate socket when used together. Also notice that the UL Component Recognition logo remains. This means that if the Macromatic plug-in product is used with any other socket, the product is Component Recognized, but not Listed.

For more information concerning Macromatic products UL Listed with the appropriate socket, please contact us.