Covering 8 classes of low-voltage cartridge fuses (G, H, J, K, L, R, T, and CC), NEMA FU 1-2012 Low Voltage Cartridge examines fuses of current-responsive element inside fuse body with contacts on both ends. These fuses are rated 600 V or less, alternating current (AC), and direct current (DC). Updates include direct current tests for photovoltaic fuses.
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