Carling Technologies

ManufacturingConnecticut, United States201-500 Employees

Carling Technologies is a mid-sized global manufacturer focused on circuit protection, switching, and power distribution. As a Littelfuse brand, it produces circuit breakers, switches, power distribution units, digital switching systems, and electronic controls for on/off-highway vehicles, marine, and datacom/telecom infrastructure markets. Founded in 1920 and based in Plainville, Connecticut, the company operates ISO 9001 and IATF 16949 registered facilities worldwide.

It serves a global base of OEMs and distributors seeking reliable protection and control solutions for critical systems across transportation, marine, and communications infrastructure. In 2021, Littelfuse acquired Carling Technologies, broadening its engineering capabilities and product portfolio, and Carling's Maretron brand provides marine monitoring and control products. A recent development is a 2025 partnership with Agility EMS to supply V-Series Contura sealed rocker switches.

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