The 4SH4224 is an AC-operated industrial relay from Fuji Electric's "Orange Line" SH Series, featuring a 4-pole configuration with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. This relay is designed for high contact reliability with bifurcated contacts that accommodate electronic devices, supporting minimum operational voltage and current of 5V and 3mA DC for direct input to electronic control circuits. The relay operates at 1,800 cycles per hour with a mechanical life of 10 million operations and electrical life of 500,000 operations at AC11 rating (220V and 440V). It conforms to international standards including IEC, NEMA, BS, and VDE, with UL, CSA, BV, and Lloyd approvals, and mounts directly on standard 35mm IEC or DIN rails. The relay is compatible with discontinued Fuji models and features IEC-standard terminal numbering, making it ideal for industrial control systems, automation equipment, and electronic switching applications requiring high reliability and field flexibility.