Eaton LDB3300 Complete MCCB - UL489 Certified

The 300 A amperage rating combined with a three-pole L-frame design provides robust protection for feeder circuits and motor loads, reducing nuisance trips and ensuring stable power distribution in industrial panels. This translates to improved uptime and safer operation in manufacturing lines, water treatment facilities, and process plants. The fixed thermal-magnetic trip (T186) simplifies coordination with upstream protection devices, enabling precise selectivity and faster fault isolation, which minimizes equipment damage and maintenance costs. The interrupt ratings of 65 kAIC at 240 Vac and 35 kAIC at 480 Vac offer strong short-circuit protection in high-inrush environments, helping facilities meet stricter safety and reliability targets. Aluminum line and load terminals improve conductive reliability, support easier termination of larger conductors, and reduce corrosion risk in harsh environments. The Series C LDB completes Eaton’s proven MCCB family, ensuring compatibility with existing Series C accessories and motor operators for plug-and-play installation in control panels. Compliance with UL 489 underscores safety and regulatory alignment for panel builders and end users, while the included warranty from Eaton (25-000) covers performance against defects for a defined period, helping procurement teams justify capital investments. The compact footprint—4.06 in depth and 8.25 in width/height—facilitates tighter panel layouts and easier retrofits, reducing enclosure modifications and installation time. In practice, this means faster commissioning, predictable performance, and lower lifecycle costs in industrial automation projects.