ABB 1SDA074683R1 Moulded Case Circuit Breaker - UL/CSA

Feature → Business Impact → Application: 4P Tmax XT1 design delivers robust protection for 4-pole power distribution networks, enabling consistent fault isolation and reducing arc fault exposure in panel boards used in manufacturing. This translates to improved equipment reliability and lower maintenance costs in process industries. Feature → TMF release with a 30 ms opening time provides rapid protection against short circuits, minimizing damage to sensitive drives and motors and reducing downtime during faults in HVAC, packaging, and conveyor systems. Feature → Front-terminal, bolt-type connections with a 6 N·m tightening torque simplify installation and field servicing, supporting faster commissioning and easier retrofit in existing switchgear and control panels. Feature → Rated current IN of 35 A and Rated Uninterrupted Current Iu of 125 A ensure stable load handling for medium-size distribution blocks, while the 500 A instantaneous setting Ii safeguards against high inrush events common in stamping, metalworking, and automation lines. Feature → High UL489 interrupting ratings (up to 65 kA at 240 V AC, 35 kA at 480 V AC, 22 kA at 600Y/347 V AC; 42 kA at 250 V DC for two poles in series; 50 kA at 500 V DC for four poles in series) provide scalable protection for diverse utility and industrial configurations. Feature → Low power loss of 2 W per pole supports energy-efficient protection schemes and reduced thermal loading in dense switchgear assemblies. Feature → Busbar compatibility with 45.5–80 mm² cross-sections enables clean integration into standard panel layouts without costly rework. Feature → Industry-leading lifecycle (electrical 8000 cycles, mechanical 25,000 cycles) delivers longer service intervals and lower replacement costs in high-use environments. Feature → End-of-life and disassembly guidance, along with EPD, RoHS, REACH and CMRT data, support sustainable disposal and regulatory reporting for corporate ESG programs.