ABB 1SDA123559R1 Moulded Case Circuit Breaker - IEC 60947-2

Feature: Front-terminal, fixed circuit-breaker design enables fast wiring and secure mounting, reducing install time and commissioning risk in new builds and retrofits within DC panels. It also simplifies assembly line testing and field verification, delivering higher first-pass acceptance rates in panel builds. This feature accelerates project timelines and reduces labor costs during panel integration. Feature: Four-pole DC protection with TMA release delivers coordinated tripping for balanced DC networks, enabling selective protection for critical loads in automation systems. The TM release supports rapid clear of faults while preserving service continuity for non-fault sections. It also aids coordination with adjacent busbars and protective devices in complex DC architectures. Feature: Electrical performance at 500 V DC and 80 A with 8 kV impulse withstand ensures safe operation under surge events, protecting DC drives and power converters from faults. Rated service short-circuit current of 85 kA in a two- or three-pole series configuration delivers robust protection for high-energy DC rails. Engineers benefit from predictable trip behavior and clear fault delineation during investigations. Feature: Power loss of 5.8 W per pole reduces heat in enclosures, improving thermal margins and reducing cooling load. This translates to lower total cost of ownership and greater reliability in compact cabinets. The design supports modular heat dissipation strategies with standard enclosure depths. Feature: Mechanical durability of up to 25,000 cycles at 240 cycles per hour supports long-life operation in high-use control panels. This durability minimizes maintenance outages and aligns with lean manufacturing maintenance strategies. Field service intervals can be extended due to rugged mechanism and robust contact interfaces. Feature: Sustainability and compliance data include RoHS, REACH declarations, and EN45555 recyclability at 55.7 percent. The ABB EcoSolutions program provides end-of-life guidance, disassembly instructions, and EPD documentation to support circular economy targets, simplifying audits and supplier assessments.