MITSUBISHI ELECTRIC CORPORATIONPUBLIC RELATIONS DIVISION
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No. 3411

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Mitsubishi Electric Corporation

Discrepancies Found in Third-party Certifications and Registrationsof Certain Mitsubishi Electric Contactors
TOKYO, May 7, 2021 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that in certain
optional accessories and contactors incorporating these accessories* manufactured at the Kani Factory of thecompany’s Nagoya Works in Kani, Gifu Prefecture, Japan, a different resin material was used from that which
was originally certified and registered by Underwriters Laboratories (UL), a third-party safety-scienceorganization in the United States.
* Equipment that combines an electromagnetic contactor that cuts off electricity supply to motors, lighting, etc., and a protective
device (thermal relay) that prevents such devices from burning out due to overcurrentThe Applicable Items (as of May 7, 2021) Follow:
Description

Model Number

Number of affected units

MS-T series Contactor option Auxiliary

UT-AX2

Approximately 820K units

contact kits

UT-AX4

Approximately 520K units

SR-T9 **

Approximately 250K units

MS-T series Contactor

SRD-T9 **S-2×T32**

SD-2×T32 **Approximately 490K units
Approximately 70K units
Approximately 150 units

This includes special specification products with "BC", "SA", etc. (excluding "SQ") added to the end of themodel name.
** Combination model with UT-AX4

As an immediate countermeasure, all shipments of these products have been stopped and the situation wasreported to the UL certification team. If it is determined that further announcements or actions are required,customers will be suitably notified through existing commercial distribution or distributor networks.

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To date, the company has not learned of any report of failure, accident or other incident attributed to the useof the alternative material. Nevertheless, Mitsubishi Electric is continuing to monitor the situation and workwith related organizations to investigate the matter further.
Taking this situation very seriously, Mitsubishi Electric is thoroughly investigating the reason for thediscrepancy to prevent any recurrence. In addition, external experts will be engaged to check if there are similarcases within the group.
###About Mitsubishi Electric Corporation
With 100 years of experience in providing reliable, high-quality products, Mitsubishi Electric Corporation(TOKYO: 6503) is a recognized world leader in the manufacture, marketing and sales of electrical andelectronic equipment used in information processing and communications, space development and satellite
communications, consumer electronics, industrial technology, energy, transportation and building equipment.
Mitsubishi Electric enriches society with technology in the spirit of its “Changes for the Better.” The company
recorded a revenue of 4,191.4 billion yen (U.S.$ 37.8 billion*) in the fiscal year ended March 31, 2021. For
more information, please visit www.MitsubishiElectric.com*U.S. dollar amounts are translated from yen at the rate of ¥111=U.S.$1, the approximate rate on the Tokyo
Foreign Exchange Market on March 31, 2021

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