The 4SH844A is an AC-operated industrial relay from Fuji Electric's "Orange Line" SH Series, featuring an 8-pole configuration with 4 normally open (NO) and 4 normally closed (NC) auxiliary contacts. This relay provides high contact reliability with bifurcated contacts that accommodate electronic devices, supporting a minimum operational voltage and current of 5V and 3mA DC for direct input to electronic control circuits. The relay delivers 10 million mechanical operations and 500,000 electrical operations at AC11 rating (220V and 440V), with a pick-up time of 9–20 milliseconds and drop-out time of 5–15 milliseconds at 200V AC, 50Hz. It mounts directly on IEC or DIN Standard 35mm rails and conforms to international standards including IEC, NEMA, BS, and VDE, with UL, CSA, BV, and Lloyd approvals. The 4SH844A is ideal for industrial automation, control systems, and applications requiring expandable relay configurations with optional auxiliary contact blocks and surge suppression units.