Castell Appoints New Distributor, Mayer Electric Supply

Castell's trapped key interlocking products available to customers in the Southeast through Mayer

Chicago, Illinois – Castell has improved service to customers in the southeast by appointing Mayer Electric Supply as a distributor for its complete line of trapped key interlocking and Salvo dock safety products.

Castell's trapped key interlocks ensure that personnel follow a predefined sequence of actions to assure safe access to machinery and adhere to safe operating procedures. Interlocking systems are unique to each application, often requiring product customization to suit customer needs. Mayer now offers Castell customers a local contact for expert technical consultation on product selection, system design, installation, and service. The company will sell all of Castell's trapped key interlocks, including its switchgear, machine guarding, and Salvo drive-away prevention products.

Mayer is among the largest electrical distributors in the United States. The company offers a range of electrical equipment and supplies, including lighting, factory, automation, and communications products and tools. The company partners with its customers in both new construction and maintenance settings to provide OEM components, parts, equipment and supplies to contractors, industrials, utilities, commercial businesses and institutions. Mayer is a third-generation, family-owned business founded in 1930.

To contact Mayer Electric Supply, visit, or call 1-866-637-1255. To learn more about Castell trapped key interlocks, go to

This Press Release and an archive of all Castell news can also be found on the Castell News Blog at 

About Castell:

Since the inception of the industrial safety industry, Castell ( has been the leader in trapped key interlocking technology. Its products go beyond meeting legislation to create the safest working environments possible. Castell offers the widest range of interlocking products of any single company, with the flexibility and expertise to tailor systems to specific customer needs. As such, Castell products can be found globally in applications as diverse as power generation, waste and recycling, food and beverage, and mining and aggregates. Almost half of these installations are custom-engineered interlocking schemes. A Halma company, Castell has its US offices in Chicago, Illinois.

A Halma Company


150 N Michigan Ave

Suite 800

Chicago IL 60601

Tel: 312-360-1516

Fax: 312-268-5174



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