The release of UL 2054 edition three,
UL 2054,

▍Important Certification profile

“CB Certification- -IEC 62619

CB Certification profile

CB Certified IEC(Standards.The goal of CB certification is to “use more” to promote international trade;

The CB system is an international system of the (Electrical Qualification Testing and Certification System) operating on the IECEE, called short for the IEC Electrical Qualification Testing and Certification Organization.

“The IEC 62619 is available for:

1. Lithium batteries for mobile equipment: forklift trucks, golf carts, AGV, railway, ship.

. 2. Lithium battery used for fixed equipment: UPS, ESS equipment and emergency power supply

“Test samples and certification period

▍North American ESS Certification

▍North American ESS Certified Test Standards

“Information required for the project inquiry

Specification for battery cell and battery module (shall include rated voltage capacity, discharge voltage, discharge current, discharge termination voltage, charging current, charging voltage, maximum charging current, maximum discharge current, maximum charging voltage, maximum operating temperature, product size, weight, etc.)

Inverter specification table (shall include rated input voltage current, output voltage current and duty cycle, operating temperature range, product size, weight, etc.)

ESS specification: rated input voltage current, output voltage current and power, operating temperature range, product size, weight, operating environment requirements, etc

Internal product photos or structural design drawings

Circuit diagram or system design diagram

“Samples and certification time

UL 9540 certification is usually 14-17 weeks (safety assessment for BMS features must be included)

Sample requirements (see for the information below. The project will be evaluated based on the application data)

ESS:7 or so (large ESS allows multiple tests for one sample due to sample cost, but requires a minimum of 1 battery system, 3 battery modules, a certain number of Fuse and relays)

Battery core: 6 (UL 1642 certificates) or 26

BMS management system: about 4

Relays: 2-3 (if any)

“Entrusted test terms for the ESS battery

▍Why is it the MCM?

“Large measuring range, high-precision equipment:

The 1) has battery unit charge and discharge equipment with 0.02% accuracy and maximum current of 1000A, 100V/400A module test equipment, and battery pack equipment of 1500V/600A.

The 2) is equipped with 12m³ constant humidity, 8m³ salt fog and high and low temperature compartments.

3）Equipped with piercing equipment displacement up to 0.01 mm and compaction equipment weighing 200 tons, drop equipment and 12000A short circuit safety test equipment with adjustable resistance.

4）Have the ability to digest a number of certification at the same time, to save customers on samples, certification time, test costs, etc.

5）Work with examination and certification agencies around the world to create multiple solutions for you.

6）We will accept your various certification and reliability test requests.

“Professional and technical team:

We can tailor a comprehensive certification solution for you according to your system and help you get quickly to the target market.

We will help you develop and test your products, and provide accurate data.

Post time:
Jun-28-2021UL 2054 Ed.3 was released on November 17, 2021. As a member of the UL standard, MCM participated in the review of the standard, and made reasonable suggestions for the modification which was adopted afterwards.
Addition of section 6.3: General requirements for the structure of wires and terminals:
The wire should be insulated, and should meet the requirements of UL 758 while considering whether the possible temperature and voltage encountered in the battery pack is acceptable.
Wiring heads and terminals should be mechanically reinforced, and electrical contact should be provided, and there should be no tension on the connections and terminals. The lead should be safe, and kept far away from sharp edges and other parts that might harm the wire insulator.
Clarification of requirements for adhesive labels; Section 29, 30.1, 30.2
addition of the requirements and methods of Mark Durability Test
Made Limited Power Source Test an optional requirement; 7.1
Clarified the external resistance in the test in 11.11.
The Short Circuit Test was stipulated to use copper wire to short circuit positive and negative anodes on section 9.11 of original standard, now was revised as using 80±20mΩ external resistors.