Key Specifications Parameter Value Brand Schneider Electric (formerly nVent/Samwha EOCR) Series EOCR-SSD Product Type Electronic Motor Protection Relay (2-CT type) Model / Reference EOCRSSD-30DM73Q Technology Microcontroller (MCU) based with real-time processing Current Measurement 2-CT (2 Current Transformer) design Current Setting Range 30 type: 3 - 30 A (adjustable) Control Voltage M7: 220VAC (typical, based on model number code) Frequency 50/60 Hz Protection Functions • Overcurrent (Overload) • Phase Loss / Open Phase • Phase Reversal (Reverse Phase) • Phase Imbalance / Unbalance • Locked Rotor (Stall) • Ground Fault (Earth Fault) - dependent on model variant Display / Indication Digital display for trip cause and fault finding Load Selection Single-phase (1P) or Three-phase (3P) selectable via DIP switch Operation Mode "Fail-Safe" (N-type) or "Non-Fail-Safe" (R-type) selectable via DIP switch Reset Mode Manual (instant) / Electric (remote) selectable Output Contacts Dependent on configuration (DM7 variant typically includes specific contact arrangement) Mounting Panel / DIN Rail mountable Standards Compliant with relevant IEC/UL standards Degree of Protection IP20 (relay body) Operating Temperature -20°C to 60°C (typical industrial range) Dimensions (W x H x D) Compact design for standard panel mounting