ABB 1SDA123519R1 Moulded Case Circuit Breaker - IEC 60947-2

The 3P design with a 16 A rating is tailored for compact DC feeders, enabling panel space optimization and cost efficiency while maintaining predictable tripping behavior for critical DC circuits. This directly reduces footprint and simplifies cabinet layouts in automation rooms, data centers, and plant power rails. The device delivers a high short-circuit capacity of up to 50 kA (Ics/Icu) at both 250 V DC (2 poles in series) and 500 V DC (3 poles in series), providing robust fault isolation and minimizing downtime during fault events. In practice, this means fewer cascade failures and faster recovery in high-energy DC buses, which is essential for continuous production lines and mission-critical automation. Compliance with IEC 60947-2 and GB/T 14028.2 ensures predictable performance across regional standards, easing supplier qualification and system integration. The RoHS and REACH declarations, plus ABB EcoSolutions data, support sustainability targets and allow for easier reporting in corporate ESG programs. With a rated operational voltage of 500 V DC and an insulation voltage of 1000 V, the breaker offers increased safety margins for higher-voltage DC networks and surge-prone environments. The 1.33 W power loss per pole minimizes heat generation, reducing cooling requirements and enabling longer service intervals. Mechanical durability of 25,000 cycles supports frequent switching, lowering maintenance frequency and operational costs for automated lines. The fixed-terminal connection and 3P configuration simplify installation, wiring, and future upgrades, ensuring a reliable, scalable protection solution for evolving control panels.