Siemens 7sg1114-5ea12-0da0 Overcurrent Protection Relay

Siemens 7SG1114-5EA12-0DA0 Overcurrent Protection Relay is a retrofit Argus 1 non-directional overcurrent relay designed to replace the original 7SG1114 in Reyrolle 7SR119 configurations. Housed in an adapter case and compatible with universal wiring, it provides four current-transformer inputs, five binary digital inputs, and eight binary outputs (including one circuit-breaker output), with a front USB port for local configuration. The unit accepts an auxiliary power supply in the range of 24-250 V DC or 100-230 V AC and measures current via 1/5 A sensors at 50/60 Hz, enabling reliable protection for feeders and other distribution assets in medium-voltage networks. As an Argus retrofit solution for the 7SG1114, it preserves the protection topology while delivering modern I/O and setting capabilities to support aging protection schemes without a full relay replacement.