SQUARE D MASTERPACT NT 12 H

SQUARE D MASTERPACT NT 12 H is a low voltage air circuit breaker (ACB) under Schneider Square D MasterPact NT series, rated 1250A frame with high short-circuit breaking capacity for critical power distribution systems. The air circuit breaker provides comprehensive power protection including overload, short-circuit and earth fault protection for main power supply cabinets. The air circuit breaker supports both fixed and drawout mounting versions for flexible cabinet integration. The air circuit breaker can be fitted with MicroLogic electronic trip units for adjustable protection curves and power metering functions. The air circuit breaker offers mechanical status indication and optional motor operator for remote electrical switching.

SQUARE D MASTERPACT NT 12 H adopts robust arc quenching structure and high endurance contacts for heavy-duty continuous power operation. The power distribution breaker complies with IEC 60947-2 standard and supports category B selectivity for downstream coordination. The power distribution breaker has built-in self-diagnostic function to monitor trip unit health and circuit abnormalities. The power distribution breaker can integrate auxiliary contacts and alarm switches for SCADA system status feedback. The power distribution breaker undergoes rigorous short-circuit type testing to guarantee reliable performance under heavy industrial power fluctuation.

SQUARE D MASTERPACT NT 12 H is widely used in industrial plants, marine power stations, commercial building main power supply and standby generator distribution systems. The industrial spare part can replace defective air circuit breakers to restore main power distribution protection rapidly. The industrial spare part matches original mechanical and electrical specifications for direct cabinet mounting replacement. The industrial spare part has clear part marking for fast identification and stock management. The industrial spare part reduces power system downtime during equipment overhaul and power system upgrade.