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UL Solutions Warns of unauthorized UL Marks on Information Technology Equipment Power Supplies

The following is a notification from UL Solutions that the Information Technology Equipment (I.T.E.) Power Supply shown below bears an unauthorized UL Mark.

Unauthorized UL Mark

September 15, 2022

Northbrook, Illinois - (September 15, 2022) - The following is a notification from UL Solutions that the Information Technology Equipment (I.T.E.)  Power Supply shown below bears an unauthorized UL Mark. The I.T.E. Power Supply has not been evaluated by UL Solutions to the appropriate Safety Standards for the risk of fire, electric shock, or injury to persons, and it is unknown if it complies with any safety requirements.

This notice does not cover certain other authorized Power Supplies. MG Electronics is authorized to apply the UL Mark to model ST-242A I.T.E. Power Supplies that incorporate an output cord and are marked with the following electrical rating: Input: 100-240 Vac, 0.8 A, 50/60 Hz Output: 24 Vdc, 1 A. 

Name of Product:   I.T.E. Power Supply, st242a  

Units:   7000+ units

Remedy: UL Solutions recommends that you stop using this product.

Manufacturer:  MG Electronics

Identification on the Product:

The affected I.T.E. Power Supplies bear the following markings and information and incorporate output screw terminals instead of an output cord:

Unauthorized use of UL Logo




Model No.: ST242A

Input: 100-240V~50-60Hz, 1.5 A

Output: 24V 2.0A

Made in China  


Photograph of the product and packaging:

Unauthorized use of UL Logo

Sold at:  Known to be sold at MG Electronics, may have been sold by other retailers.


About UL Solutions

A global leader in applied safety science, UL Solutions transforms safety, security and sustainability challenges into opportunities for customers in more than 100 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Certification Marks serve as a recognized symbol of trust in our customers’ products and reflect an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains and grow sustainably and responsibly into the future. Our science is your advantage.


Release No. 22PN-12-English
Release No. 22PN-12-French
Release No. 22PN-12-Spanish