The 30311 is a single-pole 600V, 30A midget fuse block designed for electrical distribution and circuit protection applications. It features a screw connector with double quick-connects at both ends, accommodating copper wire sizes #10-14, and is rated for a torque of 20 in-lb. The fuse block utilizes glass-filled polycarbonate (GFPC) insulators with verified dielectric strength exceeding 2500V and is rated for 125°C operation with 94V-0 flammability rating. All fuse clips are constructed from high-conductivity tin-plated copper alloy, and the unit meets UL 4248 requirements with UL recognition (guide IZLT2, File E52283) and CSA certification (class 6225, File 32169). This midget fuse block is ideal for industrial control panels, machinery protection, and electrical distribution systems where reliable circuit protection and easy maintenance are required.