3A Current Rating, 1/4" x 1-1/4" (6.3mm x 32mm) Cylindrical Cartridge Footprint, Type 28 Fast-Acting Glass Body Circuit Protection Fuse, 250VAC Max Voltage, -40°C to +85°C Standard Operational Window | Commercial-grade instrumentation-level hardware safety fuse manufactured by Ferraz Shawmut (Mersen) utilizing an exposed single-strand logic melting strip running over a low-resistance inline baseline path, engineered to execute rapid physical line separation loops and safeguard delicate multi-tier industrial panel matrices from ongoing branch line thermal overload damage | Industry Exact Equivalents: Shawmut A10Y3, Mersen A10Y3, Ferraz Shawmut Type 28 3A | Industry Functional Cross-References: Bussmann AGC-3, Littelfuse 0312003.HXP, Bel Fuse 3AG 3 | Military Specification National Stock Number (NSN): 5920-00-281-1003