Schneider Electric SD-220 Power Logic System Display Interface

Schneider Electric’s Square D SD-220 PowerLogic System Display is the local interface for the PowerLogic 3050 circuit-monitoring family, designed to centralize viewing of power data. It can gather and present information from up to 32 Circuit Monitors (Class 3050 SD-200 and SD-220) on a single display, with RS-485 communications linking the monitors to the system display and the option to connect through a PowerLogic Network Interface Module (PNIM) for broader host-device integration. The base SD-220 model provides core display functionality, while the SD-220X1 variant adds a Serial Printer Port for hardcopy output of displayed values and 16K of screen memory to support programmable, custom displays (custom screens may require additional Square D support). This module is intended for electrical distribution monitoring applications where operators need at-a-glance visibility of voltage, current, power, energy, and other diagnostic metrics from multiple monitors in one place, making it suitable for retrofit projects or new installations within the PowerLogic 3050 ecosystem.