Compliance & Certifications

Mersen has circuit protection products to help you meet every major standard in every country. We work with regulatory bodies the world over to test and certify our products, so you can choose components that will meet the product safety requirements of the markets you want to reach.

Evidence of these approvals are the certification marks found imprinted on our products.

UL Listed Mark

The mark most familiar in the U.S., the UL Listed Mark is issued by Underwriters Laboratories. It signifies that a product has been tested by a Nationally Recognized Testing Laboratory (NRTL) and met the requirements of widely accepted product safety standards. For more information, visit http://www.ul.com/.

UL Listed products are also manufactured under the UL Follow-Up Services program, which means UL will periodically retest random samples from a manufacturer's inventory to ensure that the product continues to comply with standards and perform within accepted levels of operation.

UL Recognized Mark

Products bearing this mark are generally components of a product that will later be tested as a whole to obtain a UL Listed Mark. Using UL Recognized components does not ensure an automatic UL listing, however. The complete final product must be tested as a unit. To learn more, visit http://www.ul.com/.

CSA Mark

Issued by the Canadian Standards Association, the CSA Mark signifies a product that is tested to Canadian product safety standards. Products certified for sale in Canada may also bear the relatively new C-UL Mark issued by Underwriters Laboratories. To learn more, visit http://www.csa.ca/.

CE Mark

The CE Mark, required for products intended for sale anywhere in the European Union, shows that a product has been tested by a Notified Body and meets the requirements of all relevant European directives.

CE Mark is required for any category of products listed in the Low Voltage European Directive and intended to be sold all over the European Union. 

Declaration of Conformity is the commitment of the manufacturer or of the importer of the product to having achieved the complete test program of the European standards declared in the document.

REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

In 2006, the European Union passed a new directive addressing the production of chemical substances and their potential impacts on human health and the environment. The Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) Directive went into effect on June 1, 2007.

To download our letter, please click here:

Mersen REACH/RoHS Position Letter (PDF, 254Ko)

RoHS (Restriction of Hazardous Substances)

In 2003, the European Union passed a new directive restricting the use of mercury, lead, cadmium and other potentially hazardous substances in electrical and electronic products. Called the Restriction of Hazardous Substances (RoHS) Directive, the regulation went into effect on July 1, 2006.

Whenever possible, many of our parts are fully compliant.

To download our complete position letter, click here.

Mersen REACH/RoHS Position Letter (PDF, 254Ko)

Mersen Proposition 65 Letter

Mersen Proposition 65 Letter (PDF, 197Ko)

What substances are covered by RoHS?

The hazardous substances covered by RoHS directive 2002/95/EC are:

• Lead (Pb)
• Cadmium (Cd)
• Mercury (Hg)
• Hexavalent chromium (CrVI)
• Polybrominated biphenyl (PBB), a flame retardant
• Polybrominated diphenyl (PBDE), a flame retardant

Who should be concerned with RoHS?

Companies that must comply with the RoHS directive are those that:

• Manufacture and sell electrical and electronic equipment (EEE) under their own brand
• Resell under their own brand EEE made by other manufacturers
• Import or export EEE on a professional basis

What equipment is covered by RoHS?

RoHS applies to low- voltage electrical and electronic equipment designed to operate at 1000V AC or less and 1500V DC or less, listed in Annex 1A of the WEEE directive 2002/96/EC:

• Large household appliances
• Small household appliances
• IT and telecommunications equipment
• Consumer equipment
• Lighting equipment
• Electrical and electronic tools (with the exception of large-scale stationary industrial tools)
• Toys, leisure and sports equipment
• Automatic dispensers
• Spare parts for the above equipment manufactured after July 2006
• A detailed list of the equipment categories may be found in Annex 1B of directive 2002/96/EC.

What equipment is currently outside the scope or exempt from RoHS?

• Medium-voltage electrical and electronic devices
• Spare parts for electrical and electronic devices manufactured prior to July 2006
• Arms, munitions and national-defense-related material
• Large-scale stationary industrial tools

The two categories of electrical and electronic equipment listed in Annex 1A of directive 2002/96/EC, which will be included at a later date:

• Medical devices
• Monitoring and control instruments

Exceptions listed in the Annex to directive 2002/95/EC

• Mercury in certain lamps
• Lead in the glass of cathode ray tubes, fluorescent tubes and electrical components
• Lead in solder used in servers and storage systems (until 2010)
• Lead as an alloying agent in steel (0.35% by weight), aluminum (0.4% by weight), and copper (4% by weight)
• Lead in certain high melting temperature-type solders
• Lead in solders for network infrastructure equipment
• Lead in certain electronic ceramic parts
• Cadmium plating less than 0.01% by weight
• Hexavalent chromium in carbon steel cooling systems for absorption refrigeration

The systemic extraction and trade of certain natural resources such as tin, tantalum, tungsten and gold (often referred to as
“conflict materials”) can lead to serious human rights violations and abuses.

Pursuant to European Regulation (EU) 2017/821 on conflict minerals and the equivalent US legislation (section 1502 of the Dodd Frank Act), the Group is engaged to track conflict minerals throughout the supply chain in order to identify and assess supply risks related to minerals from conflict-affected areas. 

To the best of its knowledge, the Group does not use materials from conflict zones.

For compliance document requests, please email mersenrequests@assentcompliance.com.

For all other compliance questions, please email compliance.nby@mersen.com.