The 4SH440A is an AC-operated 4-pole industrial relay from Fuji Electric's "Orange Line" SH Series, featuring 4 normally open (4NO) auxiliary contacts with bifurcated contact design that provides high contact reliability with minimum operational voltage and current of 5V and 3mA DC. The relay supports AC coil voltages ranging from 24V to 600V (50/60 Hz) and delivers rated operational currents of 60A make and 6A break at 120V AC, with continuous current rating of 10A. It features a compact 4-pole frame design (80 mm width, 61 mm depth, 8.5 mm height) with snap-on mounting on standard IEC or DIN 35mm rails, and conforms to international standards including IEC, NEMA, BS, VDE, with UL, CSA, BV, and Lloyd approvals. The relay is ideal for electronic control circuits, industrial automation, and applications requiring direct input to electronic devices, with mechanical life expectancy of 10 million operations and electrical life of 500,000 operations at AC11 rating.