NH Fuses Overview
NH fuses, also known as NH Knife Blade Fuses or DIN NH Blade Fuses, were defined in the German DIN standard 43620 around 1944. Designed as general purpose fuses protecting conductors.
Key NH fuse characteristics: specific size code indicates voltage, capacity, specifications; high voltage design; NH designation from "Neozed-Hochspannungssicherung," meaning Neozed high-voltage fuse, a German fuse system.
NH fuses have square bodies, steatite insulators, aluminum end plates, plated steel screws, full contact silver plated brass blades. Compliant with IEC 60269, VDE 0636, DIN 43620; available up to 1250A, 690Vac. SIBA’s patented Temperature Limiter innovative MV fuse design prevents disaster through proper fuse selection.
DIN Number and NPN
The DIN Number identifies manufacturer, name, ingredients, strengths, form, route; permits manufacturer to legally market in Canada after review. NPN is Natural Product Number for approved Natural Health Products.
NH Tax Identification
Designed as one-time general purpose fuses, NH fuses must be replaced once blown. Key characteristics: specific size code indicates voltage, capacity, specifications; high voltage design. NH designation from "Neozed-Hochspannungssicherung," meaning fuse system.
NH fuses have aluminum end plates, plated steel screws, full contact silver plated brass blades. Compliant with standards; available up to 690Vac.