The Challenge: In order to save valuable panel space, the Telecom Industry is constantly looking for ways to reduce the size of it’s equipment, while maintaining the international power requirement of 80 VDC. For many years, the industry has been using the Carling A, B & C-Series UL489-A approved breakers to meet these needs. Recently, Carling was approached by the telecom market leaders, and asked to achieve 80 VDC ratings and UL489- A approval

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