Specifications: Parameter Specification Product Range MasterPact MTZ (Accessories - Trip Units) Device Type Digital Micrologic Electronic Trip Unit (Series 2.1) Rated Breaker Frame For use with compatible MasterPact MTZ circuit breakers. Protection Functions • Long-Time Delay (Ir) • Short-Time Delay (Isd) • Instantaneous (Ii) Note: This model (DM2111) does NOT include Ground Fault (Ig) protection. Measurement & Display • Front LCD Display • Measures: Phase Currents (IL1, IL2, IL3), Voltage, Frequency, Power (kW, kVA), Energy (kWh). Current Sensor Configuration Configured for External 1:1 Current Transformers (CTs). The "11" suffix specifically indicates this requirement. The breaker's internal sensors are bypassed, and measurement/protection is based on signals from externally wired CTs with a 1:1 ratio. Communication Capability Basic. Typically includes a USB port for local configuration using EcoStruxure Power Commission software. Does not have built-in Ethernet. For network communication (Modbus TCP, etc.), an additional communication module (e.g., MTZ IFE Ethernet) must be installed. Settings & Configuration Via front-panel buttons and display, or via USB and software. Standards & Approvals IEC 60947-2, UL 489, CSA, CE, etc.