Specified for focused applications, Mersen A480T3/4E is a 4.8kVAC current-limiting potential-transformer fuse; the primary electrical envelope is 0.75A, 4.8kVAC nominal (5.5kV max), applied to potential- and control-power-transformer primary protection where cartridge / clip fit is required.
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Mersen positions A480T3/4E in the A480T family for potential- and control-power-transformer primary protection, using a 4.8kVAC current-limiting potential-transformer fuse format. Electrical and mechanical selection centers on 0.75A, 4.8kVAC nominal (5.5kV max), current-limiting PT protection with an 80kA symmetrical interrupting rating, and the cartridge / clip format. The page keeps series, format and standards data aligned so engineers can compare the part without generic family assumptions.
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