The Schneider Electric / Telemecanique ATMRM4TG20 is a reliable 3-phase sequence relay designed for comprehensive monitoring of industrial electrical systems operating between 208-480VAC. This essential control component provides critical protection by detecting phase sequence, phase loss, and phase asymmetry, safeguarding motors and other sensitive 3-phase equipment. It features a single changeover (1 C/O) SPDT contact for output and is engineered for convenient DIN rail mounting, ensuring robust performance across various industrial applications. Operating efficiently within a temperature range of -20°C to 50°C, it utilizes screw terminals for secure wiring.