SIPROTEC 7UT63 differential protection relays provide fast, selective fault clearing for short-circuits. Use these relays in transformers, rotating electric machines, short lines and busbars. Protect your critical assets from damaging short-circuits with precise, adaptable protection. Our SIPROTEC 7UT63 relays offer sensitive measuring for low-fault currents and fast tripping for high-fault currents, ensuring rapid response. Prevent false trips and maintain operational continuity with restraint against transformer inrush currents. Benefit from comprehensive protection functions, including backup overcurrent and ground-fault. Monitor transformer thermal conditions with external thermo-boxes for hot-spot calculation. Implement custom switchgear automation using integrated programmable logic (CFC) for enhanced operational flexibility.