Allen-Bradley 1491-R125 Fuse Block Class R 3-Pole

The Allen-Bradley 1491-R125 is a three-pole Class R fuse block designed for use in NEMA disconnect assemblies, delivering a compact protection module for three separate lines with a 250 V rating and a per-pole current range of 0–30 A, making it suitable for protecting three-phase feeders in industrial control panels. Designed to accept Allen-Bradley/Rockwell Automation Class R fuses and compatible accessories, the block provides three independent fuse positions in a single housing, enabling coordinated protection of each phase of a three-phase system in a footprint ideal for compact control cabinets. The configuration supports three independent circuits within a single module, and when paired with the appropriate Class R fuses, provides clear, centralized protection for each leg of a 3-phase supply, a common requirement in small to mid-sized automation tasks. Part of Rockwell Automation's 1491 fuse-block family, the 1491-R125 is used to configure three-pole protection for power loads and is commonly found in motor controllers, feeders, and control circuitry within industrial automation environments.