Siemens OLR1250CSI Industrial Electromechanical Relay

Siemens OLR1250CSI is an industrial electromechanical overload relay that provides thermal protection for motors in starter circuits, interrupting current when a motor draws excessive current to prevent damage. It is rated for 8 to 12.5 A and carries a Class 10 thermal rating, aligning with mid‑range motor sizes and predictable trip performance. Designed to accompany Siemens motor‑control gear, the OLR1250CSI fits into standard protection schemes within control panels to guard against overload conditions. This compact relay plays a critical role in maintaining motor longevity in demanding industrial environments by reacting to sustained overcurrents and enabling controlled shutdown of the protected load.