ABB OTDC1000U22 Industrial Digital Controller

ABB OTDC1000U22 is a four-pole DC switch-disconnector (non-fusible) rated for 1,000 A at 1,000 V DC, built to isolate high-current DC feeders in industrial power distribution and PV installations. It carries a 10 kA short-circuit rating at 1,000 V DC, making it suitable for applications where rapid and reliable DC isolation is required. The device is front-operated and base-mounted, with lug-terminal connections for secure wiring. The enclosure is IP20 and the unit operates from -20 to 50°C, ensuring dependable performance in typical industrial environments. Its compact footprint measures 176 mm high by 186 mm wide by 74 mm deep, supporting cabinet or panel installations in space-constrained layouts. The OTDC1000U22 is part of ABB’s OTDC family of DC switch-disconnectors for DC distribution networks, including PV DC lines, providing a dedicated isolation point for maintenance or fault conditions without engaging AC circuits. In markets where listed certifications apply, the unit is associated with UL 98B, reflecting compliance considerations for non-fused DC switching equipment in appropriate installations.