UL 2743-2023 UL Standard for Safety Portable Power Packs,
UL 2743-2023,

▍What is WERCSmart REGISTRATION?

WERCSmart is the abbreviation of World Environmental Regulatory Compliance Standard.

WERCSmart is a product registration database company developed by a US company called The Wercs. It aims to provide a supervision platform of product safety for supermarkets in US and Canada, and make product purchasing easier. In the processes of selling, transporting, storing and disposing products among retailers and registered recipients, products will face increasingly complicated challenges from federal, states or local regulation. Usually, the Safety Data Sheets (SDSs) supplied along with the products do not cover adequate data of which information shows compliance with laws and regulations. While WERCSmart transforms the product data to that conforming to laws and regulations.

▍Scope of registration products

Retailers determine the registration parameters for each supplier. Following categories shall be registered for reference. However, the list below is incomplete, so verification on registration requirement with your buyers is suggested.

◆All Chemical Containing Product

◆OTC Product and Nutritional Supplements

◆Personal Care Products

◆Battery-Driven Products

◆Products with Circuit Boards or Electronics        

◆Light Bulbs

◆Cooking Oil                      

◆Food dispensed by Aerosol or Bag-On-Valve

▍Why MCM？

● Technical personnel support: MCM is equipped with a professional team who studies SDS laws and regulations for long. They have in-depth knowledge of the change of laws and regulations and have provided authorized SDS service for a decade. 

● Closed-loop type service: MCM has professional personnel communicating with auditors from WERCSmart, ensuring smooth process of registration and verification. So far, MCM has provided WERCSmart registration service for more than 200 clients.

On 14th April 2023, UL published amended UL 2743, the standard for portable power source, starting power and emergency power supply, at its portal. The standard name now is changed as: ANSI/CAN/UL 2743: 2023. There are changes as follows:Clarify that the standard does not cover the ESS with capacity over the limits and belong to UL 9540;Clarify the definition of dangerous voltage. For products used indoor, the safety voltage limit raises to 42.4 Vpk or 60Vd.c.;Add definition of “portable or moveable”. Portable devices should be lower than 18kg.Enclosure for subsystem should comply with UL 746C.Socket of non-ac power supply should have an extra evaluation;Rated voltage for vehicle adapter rises to 24V;External charger should comply to UL62368-1 rather than UL 60950-1;Add requirement of grounding for double insulation products;Add replaceable standard for lithium-ion cell and lead-acid cell. Lithium-ion cell need only to comply with one of following standards: UL 1642, UL 62133, UL 1973 or UL 2580;Add replaceable standard for converter in power supply;Add testing on sense output and energy danger measurement;Control circuit can choose single fault situation to replace UL 60730-1 evaluation besides functional safety test;